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Synthesis and structure of 2,8-dimethyl-10,10-dichlorophenoxatellurine 2,8-二甲基-10,10-二氯苯氧碲的合成与结构
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0002
Farzin Mostaghimi, Daniel Duvinage, E. Lork, J. Beckmann
{"title":"Synthesis and structure of 2,8-dimethyl-10,10-dichlorophenoxatellurine","authors":"Farzin Mostaghimi, Daniel Duvinage, E. Lork, J. Beckmann","doi":"10.1515/mgmc-2021-0002","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0002","url":null,"abstract":"Abstract The condensation of 4,4’-dimethyldiphenylether with tellurium tetrachloride yielded 2,8-dimethyl-10,10-dichlorophenoxatellurine (3), which was characterized by X-ray diffraction. Unlike the parent phenoxatellurine (1) and the 10,10,-dichlorophenoxatellurine (2) showing butterfly conformations, 3 reveals a planar ring structure.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"9 - 11"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/mgmc-2021-0002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46911173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fractional metric dimension of metal-organic frameworks 金属有机骨架的分数度量维数
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0012
M. Raza, M. Javaid, N. Saleem
{"title":"Fractional metric dimension of metal-organic frameworks","authors":"M. Raza, M. Javaid, N. Saleem","doi":"10.1515/mgmc-2021-0012","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0012","url":null,"abstract":"Abstract Metal-organic frameworks (MOF(n)) are organic-inorganic hybrid crystalline porous materials that consist of a regular array of positively charged metal ions surrounded by organic ‘linker’ molecules. The metal ions form nodes that bind the arms of the linkers together to form a repeating, cage-like structure. Moreover, in a chemical structure or molecular graph, edges and vertices are known as bonds and atoms, respectively. Metric dimension being a subsets of atoms with minimum cardinality is used in the substrcturing of the chemical compounds in the molecular structures. Fractional metric dimension is weighted version of metric dimension that associate a numeric value to the identified subset of atoms. In this paper, we have computed the fractional metric dimension of metal organic framework (MOF(n)) for n ≡ 0(mod)2.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"92 - 102"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/mgmc-2021-0012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45330279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
New horizons for the synthesis of nanoparticles: Germanium nanoparticles from metastable GeBr-solutions 纳米颗粒合成的新领域：亚稳态GeBr溶液中的锗纳米颗粒
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0026
Viktoriia Slynchuk, M. Hodas, Dominik Naglav-Hansen, F. Schreiber, A. Schnepf
{"title":"New horizons for the synthesis of nanoparticles: Germanium nanoparticles from metastable GeBr-solutions","authors":"Viktoriia Slynchuk, M. Hodas, Dominik Naglav-Hansen, F. Schreiber, A. Schnepf","doi":"10.1515/mgmc-2021-0026","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0026","url":null,"abstract":"Abstract We present the synthesis and characterization of halide-terminated colloidal Ge nanoparticles of 2–10 nm with a narrow size distribution, synthesized via a novel reaction route. The nanoparticles are prepared by the disproportionation reaction of metastable Ge(I)X solutions and are obtained in a maximum yield of 79%. Control of the nanoparticle size is achieved by varying the aging time and/or temperature. The halide termination of the nanoparticles is a perfect prerequisite for further surface functionalization but also leads to a high sensitivity of the germanium nanoparticles to water and air.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"243 - 249"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45924108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Eccentricity based topological indices of face centered cubic lattice FCC(n) 面心立方晶格FCC（n）的基于偏心度的拓扑指数
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0005
H. Shaker, M. Imran, W. Sajjad
{"title":"Eccentricity based topological indices of face centered cubic lattice FCC(n)","authors":"H. Shaker, M. Imran, W. Sajjad","doi":"10.1515/mgmc-2021-0005","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0005","url":null,"abstract":"Abstract Chemical graph theory has become a prime gadget for mathematical chemistry due to its wide range of graph theoretical applications for solving molecular problems. A numerical quantity is named as topological index which explains the topological characteristics of a chemical graph. Recently face centered cubic lattice FCC(n) attracted large attention due to its prominent and distinguished properties. Mujahed and Nagy (2016, 2018) calculated the precise expression for Wiener index and hyper-Wiener index on rows of unit cells of FCC(n). In this paper, we present the ECI (eccentric-connectivity index), TCI (total-eccentricity index), CEI (connective eccentric index), and first eccentric Zagreb index of face centered cubic lattice.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"32 - 38"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/mgmc-2021-0005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46941587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Editorial: Topological investigations of chemical networks 社论：化学网络的拓扑研究
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0030
M. Javaid, M. Imran
{"title":"Editorial: Topological investigations of chemical networks","authors":"M. Javaid, M. Imran","doi":"10.1515/mgmc-2021-0030","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0030","url":null,"abstract":"Abstract The topic of computing the topological indices (TIs) being a graph-theoretic modeling of the networks or discrete structures has become an important area of research nowadays because of its immense applications in various branches of the applied sciences. TIs have played a vital role in mathematical chemistry since the pioneering work of famous chemist Harry Wiener in 1947. However, in recent years, their capability and popularity has increased significantly because of the findings of the different physical and chemical investigations in the various chemical networks and the structures arising from the drug designs. In additions, TIs are also frequently used to study the quantitative structure property relationships (QSPRs) and quantitative structure activity relationships (QSARs) models which correlate the chemical structures with their physio-chemical properties and biological activities in a dataset of chemicals. These models are very important and useful for the research community working in the wider area of cheminformatics which is an interdisciplinary field combining mathematics, chemistry, and information science. The aim of this editorial is to arrange new methods, techniques, models, and algorithms to study the various theoretical and computational aspects of the different types of these topological indices for the various molecular structures.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"267 - 269"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43764545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Some topological properties of uniform subdivision of Sierpiński graphs Sierpiński图一致细分的一些拓扑性质
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0006
Jia-bao Liu, H. M. A. Siddiqui, M. Nadeem, M. Binyamin
{"title":"Some topological properties of uniform subdivision of Sierpiński graphs","authors":"Jia-bao Liu, H. M. A. Siddiqui, M. Nadeem, M. Binyamin","doi":"10.1515/mgmc-2021-0006","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0006","url":null,"abstract":"Abstract Sierpiński graphs are family of fractal nature graphs having applications in mathematics of Tower of Hanoi, topology, computer science, and many more diverse areas of science and technology. This family of graphs can be generated by taking certain number of copies of the same basic graph. A topological index is the number which shows some basic properties of the chemical structures. This article deals with degree based topological indices of uniform subdivision of the generalized Sierpiński graphs S(n,G) and Sierpiński gasket Sn. The closed formulae for the computation of different kinds of Zagreb indices, multiple Zagreb indices, reduced Zagreb indices, augmented Zagreb indices, Narumi-Katayama index, forgotten index, and Zagreb polynomials have been presented for the family of graphs.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"218 - 227"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/mgmc-2021-0006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45238494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Fabrication, characterization, and photocatalytic performance of ternary cadmium chalcogenides CdIn2S4 and Cd7.23Zn2.77S10-ZnS thin films 三元镉硫系化合物CdIn2S4和Cd7.23Zn2.77S10-ZnS薄膜的制备、表征及光催化性能
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0008
U. Daraz, T. Ansari, Shafique Ahmad Arain, M. Mansoor, M. Mazhar, F. Hussain
{"title":"Fabrication, characterization, and photocatalytic performance of ternary cadmium chalcogenides CdIn2S4 and Cd7.23Zn2.77S10-ZnS thin films","authors":"U. Daraz, T. Ansari, Shafique Ahmad Arain, M. Mansoor, M. Mazhar, F. Hussain","doi":"10.1515/mgmc-2021-0008","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0008","url":null,"abstract":"Abstract Dithiocarbamate complexes [Cd(S2CNCy2)2(py)] (1), [In(S2CNCy2)3]·2py (2) and [Zn(S2CNCy2)2(py)] (3) were synthesized and toluene solution of (1) and (2) was used as dual source precursor for the synthesis of CdIn2S4 (CIS), while that of (1) and (3) was applied for the deposition of Cd7.23Zn2.77S10–ZnS composite (CZS-ZS) thin film photoan-odes by employing single step aerosol assisted chemical vapor deposition (AACVD) technique. Deposition experiments were performed at 500°C under an inert ambient of argon gas. The structural properties of deposited films were evaluated by using X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy. The field emission scanning electron microscopy (FESEM) exposed surface morphologies while UV-Visible spectrophotometry revealed that CIS is low band gap photoanode in comparison to CZS-ZS. The comparison of photoelectrochemical (PEC) responses measured in identical conditions in terms of linear sweep voltammetry (LSV) depicts photocurrent density of 4.4 mA /cm2 and 2.9 mA/cm2 at applied potential of 0.7 V under solar light intensity of 100 mW/cm2 for CIS and CZS-ZS respectively. Further, electrochemical impedance spectroscopy (EIS) confirms that PEC properties of CIS are superior to CZS-ZS photoanode as the former offer less charge transfer resistance (Rct) 0.03 MΩ in comparison to CZS-ZS having Rct value of 0.06 MΩ.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"39 - 50"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/mgmc-2021-0008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47125539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Synthesis and structural characterization of a novel 2D supramolecular lead coordination polymer with phenanthroline derivate and adipic acid 邻菲罗啉衍生物与己二酸的新型二维超分子铅配位聚合物的合成与结构表征
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0025
Yufei Song, Yu Yan, Hua Zhang, Xiuyan Wang
{"title":"Synthesis and structural characterization of a novel 2D supramolecular lead coordination polymer with phenanthroline derivate and adipic acid","authors":"Yufei Song, Yu Yan, Hua Zhang, Xiuyan Wang","doi":"10.1515/mgmc-2021-0025","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0025","url":null,"abstract":"Abstract A new metal-organic coordination polymer, [Pb(L)(adip)0.5] (1) was synthesized under hydrothermal conditions by using 1-(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)naphthalen-2-ol (HL) and adipic acid (H2adip). The complex 1 was characterized by diffraction and elemental analyses. In complex 1, the binuclear [Pb2L2] units were formed by the OH-deprotonation bridging neighboring Pb(II) atoms, and the adipate linked the binuclear [Pb2L2] units to form a symmetric one-dimensional chain. The 1D chain was further extended to the 2D supramolecular layer structure through π-π interactions between the L ligands.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"239 - 242"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42565355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Szeged-type indices of subdivision vertex-edge join (SVE-join) 细分顶点边连接（SVE连接）的Szeged型索引
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0011
Syed Sheraz Asghar, M. Binyamin, Yu‐ming Chu, Shehnaz Akhtar, M. A. Malik
{"title":"Szeged-type indices of subdivision vertex-edge join (SVE-join)","authors":"Syed Sheraz Asghar, M. Binyamin, Yu‐ming Chu, Shehnaz Akhtar, M. A. Malik","doi":"10.1515/mgmc-2021-0011","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0011","url":null,"abstract":"Abstract In this article, we compute the vertex Padmakar-Ivan (PIv) index, vertex Szeged (Szv) index, edge Padmakar-Ivan (PIe) index, edge Szeged (Sze) index, weighted vertex Padmakar-Ivan (wPIv) index, and weighted vertex Szeged (wSzv) index of a graph product called subdivision vertex-edge join of graphs.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"82 - 91"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/mgmc-2021-0011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46717332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
On analysis of thermodynamic properties of cuboctahedral bi-metallic structure 立方八面体双金属结构热力学性质的分析
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0014
M. K. Siddiqui, Y. Chu, Muhammad Nasir, M. Cancan
{"title":"On analysis of thermodynamic properties of cuboctahedral bi-metallic structure","authors":"M. K. Siddiqui, Y. Chu, Muhammad Nasir, M. Cancan","doi":"10.1515/mgmc-2021-0014","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0014","url":null,"abstract":"Abstract Porous materials, for example, metalnatural structures (MOFs) and their discrete partners metalnatural polyhedra (MOPs), that are built from coordinatively unsaturated inorganic hubs show incredible potential for application in gas adsorption/partition cycles, catalysis, and arising openings in hardware, optics, detecting, and biotechnology. A well-known hetero-bimetallic metalorganic polyhedra of this discrete partners metalnatural polyhedra (MOPs) class is cuboctahedral bi-metallic stricture. In this paper, we discuss the stricture of Hetero-bimetallic metalorganic polyhedra (cuboctahedral bi-metallic). Also, we computed the topological indices based on the degree of atoms in this cuboctahedral bi-metallic structure.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"117 - 128"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/mgmc-2021-0014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47298925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
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