Journal of molecular graphics & modelling最新文献

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Computational evaluation of novel XCuH3 (X = Li, Na and K) perovskite-type hydrides for hydrogen storage applications using LDA and GGA approach 利用 LDA 和 GGA 方法对新型 XCuH3(X = Li、Na 和 K)包晶型氢化物的储氢应用进行计算评估
IF 2.9 4区 生物学
Journal of molecular graphics & modelling Pub Date : 2024-06-04 DOI: 10.1016/j.jmgm.2024.108808
Muhammad Mubashir , Mubashar Ali , Zunaira Bibi , Usama Afzal , Munirah D. Albaqami , Saikh Mohammad , Muhammad Muzamil
{"title":"Computational evaluation of novel XCuH3 (X = Li, Na and K) perovskite-type hydrides for hydrogen storage applications using LDA and GGA approach","authors":"Muhammad Mubashir ,&nbsp;Mubashar Ali ,&nbsp;Zunaira Bibi ,&nbsp;Usama Afzal ,&nbsp;Munirah D. Albaqami ,&nbsp;Saikh Mohammad ,&nbsp;Muhammad Muzamil","doi":"10.1016/j.jmgm.2024.108808","DOIUrl":"https://doi.org/10.1016/j.jmgm.2024.108808","url":null,"abstract":"<div><p>Hydrogen energy has attracted a lot of interest from researchers as a sustainable and renewable energy source, but there are some technical challenges related to its storage. Hydride materials demonstrate the ability to store hydrogen adequately and safely. In the current study, we have investigated the structural and optoelectronic properties of the XCuH<sub>3</sub> (where X = Li, Na and K) perovskite-type hydride using LDA and GGA formalisms for hydrogen storage application. Electronic properties such as band structure, density of states reveal the metallic character of the studied XCuH<sub>3</sub> hydrides. Various optical parameters such as the complex dielectric function, refractive index, extinction coefficient, absorption coefficient, reflectivity, optical conductivity, energy loss function, and joint density of states have been computed and compared. The gravimetric hydrogen storage capacity for LiCuH<sub>3</sub>, NaCuH<sub>3</sub> and KCuH<sub>3</sub> are found to be 4.11, 3.37 and 2.86 wt%, respectively. The computed values of the gravimetric ratio manifest that XCuH<sub>3</sub> hydrides are potential candidates for hydrogen storage applications. These calculations are made for the first time for XCuH<sub>3</sub> hydrides and will be inspirational in the future for comparison and for hydrogen storage purposes.</p></div>","PeriodicalId":16361,"journal":{"name":"Journal of molecular graphics & modelling","volume":"131 ","pages":"Article 108808"},"PeriodicalIF":2.9,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141290327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Catalytic battle of activated carbon supported transition metal atom towards adsorption and dissociation of molecular hydrogen: Progress towards quantum chemical application on renewable energy resource 活性碳支撑过渡金属原子对分子氢吸附和解离的催化作用:量子化学在可再生能源领域的应用进展
IF 2.9 4区 生物学
Journal of molecular graphics & modelling Pub Date : 2024-06-03 DOI: 10.1016/j.jmgm.2024.108804
Abhijit Dutta , Amit Kumar Pradhan , Paritosh Mondal
{"title":"Catalytic battle of activated carbon supported transition metal atom towards adsorption and dissociation of molecular hydrogen: Progress towards quantum chemical application on renewable energy resource","authors":"Abhijit Dutta ,&nbsp;Amit Kumar Pradhan ,&nbsp;Paritosh Mondal","doi":"10.1016/j.jmgm.2024.108804","DOIUrl":"10.1016/j.jmgm.2024.108804","url":null,"abstract":"<div><p>Density functional theory (DFT) investigation has been done to unravel the adsorption and dissociation nature of hydrogen molecule on 3<em>d</em>, 4<em>d</em> and 5<em>d</em> transition metal (M = Fe, Co, Ni, Cu, Ru, Rh, Pd, Ag, Os, Ir, Pt or Au) atom doped activated carbon (AC) surface. Transition metal doped AC are found to be active catalyst for storage of hydrogen and also gives the stability of <em>M</em> − H bonds formed after bond breakage of H<sub>2</sub> molecule. Transition metals are found to occupy the position on the five member ring rather than six member ring of the AC. Five member ring of the AC is seen to be more deformed than the six-member ring on metal doping. Higher values of LUMO-HOMO gap and vertical ionization potential and lower electron affinity signify the higher stability of hydrogen molecule adsorbed metal doped AC. Bond length and vibrational analysis of the adsorbed hydrogen molecule suggest the higher activation of hydrogen molecule on AC, where 4<em>d</em> and 5<em>d</em> metal doped ACs are found to be more efficient in comparison to 3<em>d</em> metal. Adsorbed hydrogen molecule on metal doped AC follows dissociation either via spill-over or via normal process. DFT evaluated rate constant and the transition states suggest that Ru, Rh, Os and Ir doped AC are found to be efficient in the dissociation of hydrogen molecule, while, Cu doped AC is seen to be worst in the same reaction. Deformed electron density, HOMO-LUMO isosurface, and density of states confirms the redistribution of electrons among H<sub>2</sub> and metal doped AC surface. ΔG<sub>H</sub> values of Hydrogen evolution reaction also signifies the greater catalytic activities of Ru and Os supported activated carbon towards HER.</p></div>","PeriodicalId":16361,"journal":{"name":"Journal of molecular graphics & modelling","volume":"131 ","pages":"Article 108804"},"PeriodicalIF":2.9,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141275801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The binding of diruthenium (II,III) and dirhodium (II,II) paddlewheel complexes at DNA/RNA nucleobases: Computational evidences of an appreciable selectivity toward the AU base pairs 二钌(II,III)和二铑(II,II)桨轮复合物与 DNA/RNA 核碱基的结合:对 AU 碱基对具有明显选择性的计算证据。
IF 2.9 4区 生物学
Journal of molecular graphics & modelling Pub Date : 2024-05-31 DOI: 10.1016/j.jmgm.2024.108806
Iogann Tolbatov , Paolo Umari , Alessandro Marrone
{"title":"The binding of diruthenium (II,III) and dirhodium (II,II) paddlewheel complexes at DNA/RNA nucleobases: Computational evidences of an appreciable selectivity toward the AU base pairs","authors":"Iogann Tolbatov ,&nbsp;Paolo Umari ,&nbsp;Alessandro Marrone","doi":"10.1016/j.jmgm.2024.108806","DOIUrl":"10.1016/j.jmgm.2024.108806","url":null,"abstract":"<div><p>Multiple medicinal strategies involve modifications of the structure of DNA or RNA, which disrupt their correct functioning. Metal complexes with medicinal effects, also known as metallodrugs, are among the agents intended specifically for the attack onto nucleosides. The diruthenium (II,III) and dirhodium (II,II) paddlewheel complexes constitute promising dual acting drugs due to their ability to release the therapeutically active bridging ligands upon their substitution by endogenous ligands. In this paper, we study the structure and the stability of the complexes formed by the diruthenium (II,III) and dirhodium (II,II) paddlewheel complexes coordinated in axial positions with the DNA/RNA nucleobases or base pairs, assuming the attainable metalation at all the accessible pyridyl nitrogens. Dirhodium complexes coordinate at the pyridyl nitrogens more strongly than the diruthenium complexes. On the other hand, we found that the diruthenium scaffold binds more selectively to nucleobase targets. Furthermore, we reveal a tighter coordination of diruthenium complex at the adenine-uracil base pair, compared to adenine-thymine, hence constituting a scarce instance of RNA-selectivity. We envision that the here reported computational outcomes may pace future experiments addressing the binding of diruthenium and dirhodium paddlewheel complexes at either single nucleobases or DNA/RNA fragments.</p></div>","PeriodicalId":16361,"journal":{"name":"Journal of molecular graphics & modelling","volume":"131 ","pages":"Article 108806"},"PeriodicalIF":2.9,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1093326324001062/pdfft?md5=b8d31fab85c9aebf7546ea342dbc40f5&pid=1-s2.0-S1093326324001062-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141199119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Combined experimental and computational investigation of tetrabutylammonium bromide-carboxylic acid-based deep eutectic solvents 四丁基溴化铵-羧酸基深共晶溶剂的综合实验和计算研究
IF 2.9 4区 生物学
Journal of molecular graphics & modelling Pub Date : 2024-05-31 DOI: 10.1016/j.jmgm.2024.108805
Sahar Shokri, Nosaibah Ebrahimi, Rahmat Sadeghi
{"title":"Combined experimental and computational investigation of tetrabutylammonium bromide-carboxylic acid-based deep eutectic solvents","authors":"Sahar Shokri,&nbsp;Nosaibah Ebrahimi,&nbsp;Rahmat Sadeghi","doi":"10.1016/j.jmgm.2024.108805","DOIUrl":"https://doi.org/10.1016/j.jmgm.2024.108805","url":null,"abstract":"<div><p>Aiming at shedding light on the molecular interactions in deep eutectic solvents (DESs), the DESs based on tetrabutylammonium bromide (TBAB) as hydrogen bond acceptor (HBA) and carboxylic acids (CAs) (formic acid (FA), oxalic acid (OA), and malonic acid (MA)) as hydrogen bond donor (HBD) were investigated by both experimental and theoretical techniques. The thermal behaviors of the prepared DESs were investigated by differential scanning calorimetry (DSC) method. In order to study the hydrogen bond formation between the DESs constituents, the FT-IR analysis was carried out. The large positive deviations of the iso solvent activity lines of ternary HBA + HBD + 2-propanol mixtures determined by the isopiestic technique from the semi-ideal behavior indicate that CAs interact strongly with TBAB and therefore they can form DESs. Molecular dynamics (MD) simulations were performed to present an atomic-scale image of the components and describe the microstructure of DESs. From the MD simulations, the radial distribution functions (RDFs), coordination numbers (CNs), combined distribution functions (CDFs), and spatial distribution functions (SDFs) were calculated to investigate the interaction between the components and three-dimensional visualization of the DESs. The obtained results confirmed the importance of hydrogen bonds in the formation of TBAB/CAs DESs.</p></div>","PeriodicalId":16361,"journal":{"name":"Journal of molecular graphics & modelling","volume":"131 ","pages":"Article 108805"},"PeriodicalIF":2.9,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141242867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Utilization of the EpiMed Coronabank Chemical Collection to identify potential SARS-CoV-2 antivirals: in silico studies targeting the nsp14 ExoN domain and PLpro naphthalene binding site 利用 EpiMed Coronabank 化学物质库鉴定潜在的 SARS-CoV-2 抗病毒药物:针对 nsp14 ExoN 结构域和 PLpro 萘结合位点的硅学研究
IF 2.9 4区 生物学
Journal of molecular graphics & modelling Pub Date : 2024-05-26 DOI: 10.1016/j.jmgm.2024.108803
Julia J. Liang , Eleni Pitsillou , Hannah L.Y. Lau , Cian P. Mccubbery , Hockxuen Gan , Andrew Hung , Tom C. Karagiannis
{"title":"Utilization of the EpiMed Coronabank Chemical Collection to identify potential SARS-CoV-2 antivirals: in silico studies targeting the nsp14 ExoN domain and PLpro naphthalene binding site","authors":"Julia J. Liang ,&nbsp;Eleni Pitsillou ,&nbsp;Hannah L.Y. Lau ,&nbsp;Cian P. Mccubbery ,&nbsp;Hockxuen Gan ,&nbsp;Andrew Hung ,&nbsp;Tom C. Karagiannis","doi":"10.1016/j.jmgm.2024.108803","DOIUrl":"https://doi.org/10.1016/j.jmgm.2024.108803","url":null,"abstract":"<div><p>The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) genome encodes 29 proteins including four structural, 16 nonstructural (nsps), and nine accessory proteins (<span>https://epimedlab.org/sars-cov-2-proteome/</span><svg><path></path></svg>). Many of these proteins contain potential targetable sites for the development of antivirals. Despite the widespread use of vaccinations, the emergence of variants necessitates the investigation of new therapeutics and antivirals. Here, the EpiMed Coronabank Chemical Collection (<span>https://epimedlab.org/crl/</span><svg><path></path></svg>) was utilized to investigate potential antivirals against the nsp14 exoribonuclease (ExoN) domain. Molecular docking was performed to evaluate the binding characteristics of our chemical library against the nsp14 ExoN site. Based on the initial screen, trisjuglone, ararobinol, corilagin, and naphthofluorescein were identified as potential lead compounds. Molecular dynamics (MD) simulations were subsequently performed, with the results highlighting the stability of the lead compounds in the nsp14 ExoN site. Protein-RNA docking revealed the potential for the lead compounds to disrupt the interaction with RNA when bound to the ExoN site. Moreover, hypericin, cyanidin-3-O-glucoside, and rutin were previously identified as lead compounds targeting the papain-like protease (PL<sup>pro</sup>) naphthalene binding site. Through performing MD simulations, the stability and interactions of lead compounds with PL<sup>pro</sup> were further examined. Overall, given the critical role of the exonuclease activity of nsp14 in ensuring viral fidelity and the multifunctional role of PL<sup>pro</sup> in viral pathobiology and replication, these nsps represent important targets for antiviral drug development. Our databases can be utilized for <em>in silico</em> studies, such as the ones performed here, and this approach can be applied to other potentially druggable SARS-CoV-2 protein targets.</p></div>","PeriodicalId":16361,"journal":{"name":"Journal of molecular graphics & modelling","volume":"131 ","pages":"Article 108803"},"PeriodicalIF":2.9,"publicationDate":"2024-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1093326324001037/pdfft?md5=e210d9241884d3cecf0ed92a828f7a38&pid=1-s2.0-S1093326324001037-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141164060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
NPEX: Never give up protein exploration with deep reinforcement learning NPEX:利用深度强化学习永不放弃蛋白质探索
IF 2.9 4区 生物学
Journal of molecular graphics & modelling Pub Date : 2024-05-25 DOI: 10.1016/j.jmgm.2024.108802
Yuta Shimono, Masataka Hakamada, Mamoru Mabuchi
{"title":"NPEX: Never give up protein exploration with deep reinforcement learning","authors":"Yuta Shimono,&nbsp;Masataka Hakamada,&nbsp;Mamoru Mabuchi","doi":"10.1016/j.jmgm.2024.108802","DOIUrl":"https://doi.org/10.1016/j.jmgm.2024.108802","url":null,"abstract":"<div><p>Elucidating unknown structures of proteins, such as metastable states, is critical in designing therapeutic agents. Protein structure exploration has been performed using advanced computational methods, especially molecular dynamics and Markov chain Monte Carlo simulations, which require untenably long calculation times and prior structural knowledge. Here, we developed an innovative method for protein structure determination called never give up protein exploration (NPEX) with deep reinforcement learning. The NPEX method leverages the soft actor-critic algorithm and the intrinsic reward system, effectively adding a bias potential without the need for prior knowledge. To demonstrate the method's effectiveness, we applied it to four models: a double well, a triple well, the alanine dipeptide, and the tryptophan cage. Compared with Markov chain Monte Carlo simulations, NPEX had markedly greater sampling efficiency. The significantly enhanced computational efficiency and lack of prior domain knowledge requirements of the NPEX method will revolutionize protein structure exploration.</p></div>","PeriodicalId":16361,"journal":{"name":"Journal of molecular graphics & modelling","volume":"131 ","pages":"Article 108802"},"PeriodicalIF":2.9,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141250519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigating the effect of welding tool length on mechanical strength of welded metallic matrix by molecular dynamics simulation 通过分子动力学模拟研究焊接工具长度对焊接金属基体机械强度的影响
IF 2.9 4区 生物学
Journal of molecular graphics & modelling Pub Date : 2024-05-20 DOI: 10.1016/j.jmgm.2024.108793
Xuejin Yang , Rassol Hamed Rasheed , Sami Abdulhak Saleh , Mohammed Al-Bahrani , C Manjunath , Raman Kumar , Soheil Salahshour , Rozbeh Sabetvand
{"title":"Investigating the effect of welding tool length on mechanical strength of welded metallic matrix by molecular dynamics simulation","authors":"Xuejin Yang ,&nbsp;Rassol Hamed Rasheed ,&nbsp;Sami Abdulhak Saleh ,&nbsp;Mohammed Al-Bahrani ,&nbsp;C Manjunath ,&nbsp;Raman Kumar ,&nbsp;Soheil Salahshour ,&nbsp;Rozbeh Sabetvand","doi":"10.1016/j.jmgm.2024.108793","DOIUrl":"https://doi.org/10.1016/j.jmgm.2024.108793","url":null,"abstract":"<div><p>The welding process and the properties of welding instruments may improve the mechanical performance of an item. One of these properties is the length of the welding tool. This approach has a substantial effect on the mechanical strength of the metallic matrix. The current study used molecular dynamics modeling and LAMMPS software to evaluate the effect of welding tool length on the mechanical properties of a welded Cu–Ag metallic matrix. This simulation makes use of the Lennard-Jones potential function and the embedded atom model. First, the equilibrium phase of modeled samples was verified by changing the computation of kinetic and total energies. Next, the mechanical properties of the welded matrix were studied using the stated Young's modulus and ultimate strength. The stress-strain curve of samples demonstrated that the mechanical strength of atomic samples increased as the length of the welding tool (penetration depth) increased. Numerically, by increasing the tool penetration depth of Fe tools from 2 Å to 8 Å, Young's modulus and ultimate strength of the matrixes sample increase from 34.360 GPa to 1390.84 MPa to 38.44 GPa and 1510 MPa, respectively. This suggested that the length of the Fe welding tool significantly affected the mechanical properties of the welded metallic matrix. The longer the length of Fe welding tools, the more particles were involved, and consequently, more bonds were formed among the particles. Bonding among the particles caused changes in mechanical properties, such as greater ultimate strength. This method can optimize mechanical structures and be useful in various industries.</p></div>","PeriodicalId":16361,"journal":{"name":"Journal of molecular graphics & modelling","volume":"131 ","pages":"Article 108793"},"PeriodicalIF":2.9,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141097424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A theoretical investigation for improving the performance of non-fullerene organic solar cells through side-chain engineering of BTR non-fused-ring electron acceptors 通过 BTR 非熔环电子受体侧链工程改善非富勒烯有机太阳能电池性能的理论研究
IF 2.9 4区 生物学
Journal of molecular graphics & modelling Pub Date : 2024-05-20 DOI: 10.1016/j.jmgm.2024.108792
Sidra Moeed , R. Bousbih , Ali Raza Ayub , Nadhir N.A. Jafar , Mohammed Aljohani , Majid S. Jabir , Mohammed A. Amin , Hira Zubair , Hasan Majdi , Muhammad Waqas , N.M.A. Hadia , Rasheed Ahmad Khera
{"title":"A theoretical investigation for improving the performance of non-fullerene organic solar cells through side-chain engineering of BTR non-fused-ring electron acceptors","authors":"Sidra Moeed ,&nbsp;R. Bousbih ,&nbsp;Ali Raza Ayub ,&nbsp;Nadhir N.A. Jafar ,&nbsp;Mohammed Aljohani ,&nbsp;Majid S. Jabir ,&nbsp;Mohammed A. Amin ,&nbsp;Hira Zubair ,&nbsp;Hasan Majdi ,&nbsp;Muhammad Waqas ,&nbsp;N.M.A. Hadia ,&nbsp;Rasheed Ahmad Khera","doi":"10.1016/j.jmgm.2024.108792","DOIUrl":"https://doi.org/10.1016/j.jmgm.2024.108792","url":null,"abstract":"<div><p>In the current quantum chemical study, indacenodithiophene donor core-based the end-capped alterations of the reference chromophore BTR drafted eight A2-A1-D-A1-A2 type small non-fullerene acceptors. All the computational simulations were executed under MPW1PW91/6-31G (d, p) level of DFT. The UV–Vis absorption, open circuit voltage, electron affinity, ionization potential, the density of states, reorganization energy, orbital analysis, and non-covalent interactions were studied and compared with BTR. Several molecules of our modeled series BT1-BT8 have shown distinctive features that are better than those of the BTR. The open circuit voltage (V<sub>OC</sub>) of BT5 has a favorable impact, allowing it to replace BTR in the field of organic solar cells. The charge carrier motilities for proposed molecules generated extraordinary findings when matched to the reference one (BTR). Further charge transmission was confirmed by creating the complex with a PM6 donor molecule. The remarkable dipole moment contributes to the formation of non-covalent bond interactions with chloroform, resulting in superior charge mobility. Based on these findings, it can be said that every tailored molecule has the potential to surpass chromophore molecule (BTR) in OSCs. So, all tailored molecules may enhance the efficiency of photovoltaic cells due to the involvement of potent terminal electron-capturing acceptor2 moieties. Considering these obtained results, these newly presented molecules can be regarded for developing efficient solar devices in the future.</p></div>","PeriodicalId":16361,"journal":{"name":"Journal of molecular graphics & modelling","volume":"131 ","pages":"Article 108792"},"PeriodicalIF":2.9,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141096178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Theoretical design of alkaline earthides M+(36 adz) Be− (M+ = V, Cr, Mn, Fe, Co, Ni, Cu, and Zn) with excellent nonlinear optical response and ultraviolet transparency 具有优异非线性光学响应和紫外透明度的碱土化物 M+(36adz)Be-(M+ = V、Cr、Mn、Fe、Co、Ni、Cu 和 Zn)的理论设计
IF 2.9 4区 生物学
Journal of molecular graphics & modelling Pub Date : 2024-05-19 DOI: 10.1016/j.jmgm.2024.108791
Jabir Hussain , Riaz Hussain , Ajaz Hussain , Mirza Arfan Yawer , Muhammad Arshad , Saleh S. Alarfaji , Abdul Rauf , Khurshid Ayub
{"title":"Theoretical design of alkaline earthides M+(36 adz) Be− (M+ = V, Cr, Mn, Fe, Co, Ni, Cu, and Zn) with excellent nonlinear optical response and ultraviolet transparency","authors":"Jabir Hussain ,&nbsp;Riaz Hussain ,&nbsp;Ajaz Hussain ,&nbsp;Mirza Arfan Yawer ,&nbsp;Muhammad Arshad ,&nbsp;Saleh S. Alarfaji ,&nbsp;Abdul Rauf ,&nbsp;Khurshid Ayub","doi":"10.1016/j.jmgm.2024.108791","DOIUrl":"https://doi.org/10.1016/j.jmgm.2024.108791","url":null,"abstract":"<div><p>A novel series of alkaline earthides containing eight complexes based upon 3<sup>6</sup>adz complexant are designed by placing carefully transition metals (V–Zn) on inner side and alkaline earth metal outer side of the complexant <em>i.e.,</em> M<sup>+</sup>(3<sup>6</sup>adz) Be<sup>−</sup> (M<sup>+</sup> = V, Cr, Mn, Fe, Co, Ni, Cu and Zn). All the designed compounds are electronically and thermodynamically stable as evaluated by their interaction energy and vertical ionization potential respectively. Moreover, the true nature of alkaline earthides is verified through NBOs and FMO study, showing negative charge and excess electrons on alkaline earth metal respectively. Furthermore, true alkaline earthides characteristics are evaluated graphically by spectra of partial density state (PDOS). The energy gap (HOMO -LUMO gap) is very small (ranging 2.95 eV–1.89 eV), when it is compared with pure cage 3<sup>6</sup>adz HOMO-LUMO gap <em>i.e.,</em> 8.50 eV. All the complexes show a very small value of transition energy ranging from 1.68eV to 0.89eV. Also, these possess higher hyper polarizability values up to 2.8 x 10<sup>5</sup>au (for Co<sup>+</sup>(3<sup>6</sup>adz) Be<sup>−</sup>). Furthermore, an increase in hyper polarizability was observed by applying external electric field on complexes. The remarkable increase of 100fold in hyper polarizability of Zn<sup>+</sup>(3<sup>6</sup>adz) Be<sup>−</sup> complex is determined after application of external electric field <em>i.e.,</em> from 1.7 x 10<sup>4</sup> au to 1.7 x 10<sup>6</sup> au when complex is subjected to external electric field of 0.001 au strength. So, when external electric field is applied on complexes it enhances the charge transfer, polarizability and hyper polarizability of complexes and proves to be effective for designing of true alkaline earthides with remarkable NLO response.</p></div>","PeriodicalId":16361,"journal":{"name":"Journal of molecular graphics & modelling","volume":"130 ","pages":"Article 108791"},"PeriodicalIF":2.9,"publicationDate":"2024-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141073411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum to “Structural and functional analysis of Cyanovirin-N homologs: Carbohydrate binding affinities and antiviral potential of cyanobacterial peptides” [J. Mol. Graph. Model. 129 (June 2024), 108718] 对 "Cyanovirin-N 同源物的结构和功能分析:蓝藻肽的碳水化合物结合亲和力和抗病毒潜力" [J. Mol. Graph. Model. 129 (June 2024), 108718]。
IF 2.9 4区 生物学
Journal of molecular graphics & modelling Pub Date : 2024-05-10 DOI: 10.1016/j.jmgm.2024.108788
Gabriel Albuquerque Xavier, Alenna Sousa, Larissa Queiroz dos Santos, Délia Cristina Figueira Aguiar, Evonnildo Costa Gonçalves, Andrei Santos Siqueira
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