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On vertex PI index of certain triangular tessellation networks 某些三角镶嵌网络的顶点PI指数
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0020
Syed Ahtsham ul Haq Bokhary, Adnan
{"title":"On vertex PI index of certain triangular tessellation networks","authors":"Syed Ahtsham ul Haq Bokhary, Adnan","doi":"10.1515/mgmc-2021-0020","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0020","url":null,"abstract":"Abstract The Wiener index, due to its many applications is considered to be one of very important distance-based index. But the Padmaker-Ivan (PI) index is kind of the only distance related index linked to parallelism of edges. The PI index like other distance related indices has great disseminating power. The index was firstly investigated by Khadikar et al. (2001), they have probed the chemical applications of the PI index. They proved that the proposed PI index correlates highly with the physicochemical properties and biological activities of a large number of diverse and complex chemical compounds and the Wiener and Szeged indices. Recently, the vertex Padmarkar-Ivan (PIv) index of a chemical graph G was introduced as the sum over all edges uv of a molecular graph G of the vertices of the graph that are not equidistant to the vertices u and v. In this paper, the vertex PIv index of certain triangular tessellation are computed by using graph-theoretic analysis, combinatorial computing, and edge-dividing technology.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"203 - 212"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/mgmc-2021-0020","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48891218","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
Synthesis and crystal structure of one new Pb(II) complex constructed by 1,10-phenanthroline and two carboxylate ligands 由1,10-菲罗啉和两个羧酸盐配体构建的新型铅(II)配合物的合成和晶体结构
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0019
Lu-Lin Zhang, Shida Tang, Deliang Li, Yuanzheng Cheng, Liping Zhang
{"title":"Synthesis and crystal structure of one new Pb(II) complex constructed by 1,10-phenanthroline and two carboxylate ligands","authors":"Lu-Lin Zhang, Shida Tang, Deliang Li, Yuanzheng Cheng, Liping Zhang","doi":"10.1515/mgmc-2021-0019","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0019","url":null,"abstract":"Abstract The complex [Pb(phen)(4-NB)(CH3COO)] of lead(II) was prepared and characterized by means of elemental analysis, FT-IR, and single crystal X-ray analysis, where phen = 1,10-phenanthroline, 4-NB = 4-nitrobenzoate. The single crystal X-ray analysis indicates that the complex is a monomeric species, including two carboxylate ligands, and adopts a hemidirected structure. It is further extended by intermolecular C−H⋯O hydrogen bonds, π–π interactions and secondary Pb⋯O interactions to form two-dimensional supramolecular architecture.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"157 - 164"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/mgmc-2021-0019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49015489","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
Determination of essential and non-essential element contents of drinking water and baby water for infant’s nutrition 婴幼儿营养饮用水和婴儿水中必需元素和非必需元素含量的测定
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0021
F. Demir, Meral Yildirim Ozen, E. Derun
{"title":"Determination of essential and non-essential element contents of drinking water and baby water for infant’s nutrition","authors":"F. Demir, Meral Yildirim Ozen, E. Derun","doi":"10.1515/mgmc-2021-0021","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0021","url":null,"abstract":"Abstract In this study, essential (Ca, Cr, Cu, Fe, K, Mg, Na, P, Zn), and non-essential (Al, Ni, Pb) element contents of the drinking and baby water samples which are sold in the local market and tap water samples in Istanbul were examined. It was determined that elements of Cr, Cu, Fe, P, Zn, Al, and Ni were below detection limits in all water samples. Among the non-essential elements analyzed in water samples, Pb was the only detected element. At the same time, the percentages that meet the daily element requirements of infants were also calculated. As a result of the evaluations made, there is no significant difference in infant nutrition between baby waters and other drinking waters in terms of the element content.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"194 - 202"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/mgmc-2021-0021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45172457","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
Forgotten coindex of some non-toxic dendrimers structure used in targeted drug delivery 被遗忘的一些无毒树状大分子结构用于靶向药物递送
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0004
Y. Ali, Zainab Bibi, Quanita Kiran
{"title":"Forgotten coindex of some non-toxic dendrimers structure used in targeted drug delivery","authors":"Y. Ali, Zainab Bibi, Quanita Kiran","doi":"10.1515/mgmc-2021-0004","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0004","url":null,"abstract":"Abstract In recent past, porphyrin-based dendrimers have gained great attraction due to their usefulness in nano devices and photo-dynamic therapy. New technologies based upon nano-materials or dendrimers have potential to overcome the problems due to conventional drug delivery, like toxicity, poor solubility and poor release pattern of drugs. The chemical and physical properties of these highly branched nanometer sized dendrimers depend on their structure. In chemical network theory, various topological indices are used to predict chemical properties of molecules(dendrimers). Among many useful topological descriptors forgotten coindex is relatively less explored but is found very useful in material engineering, pharmaceutical and chemical industries. In this article, we consider some special dendrimers, like poly(propyl) ether imine, porphyrin, and zinc-porphyrin, and nanostars like D1[k] and D2[k] and compute forgotten coindex for these important structures.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"22 - 31"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/mgmc-2021-0004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45172845","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: 4
Organotin(IV) selenate derivatives – Crystal structure of [{(Ph3Sn)2SeO4} ⋅ CH3OH]n 硒酸有机锡衍生物- [{(Ph3Sn)2SeO4}⋅CH3OH]n的晶体结构
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0023
Waly Diallo, H. Cattey, L. Plasseraud
{"title":"Organotin(IV) selenate derivatives – Crystal structure of [{(Ph3Sn)2SeO4} ⋅ CH3OH]n","authors":"Waly Diallo, H. Cattey, L. Plasseraud","doi":"10.1515/mgmc-2021-0023","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0023","url":null,"abstract":"Abstract Crystallization of [(Ph3Sn)2SeO4] ⋅ 1.5H2O in methanol leads to the formation of [{(Ph3Sn)2SeO4} ⋅ CH3OH]n (1) which constitutes a new specimen of organotin(IV) selenate derivatives. In the solid state, complex 1 is arranged in polymeric zig-zag chains, composed of alternating Ph3Sn and SeO4 groups. In addition, pendant Ph3Sn ⋅ CH3OH moieties are branched along chains according to a syndiotactic organization and via Sn-O-Se connections. From a supramolecular point of view, intermolecular hydrogen bonds established between the selenate groups (uncoordinated oxygen) and the hydroxyl functions (CH3OH) of the pendant groups link the chains together.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"213 - 217"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/mgmc-2021-0023","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67036057","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
New cyclic and spirocyclic aminosilanes 新型环状和螺环氨基硅烷
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0007
Marcus Herbig, Henrik Scholz, U. Böhme, Betty Günther, Lia Gevorgyan, D. Gerlach, J. Wagler, Sandra Schwarzer, E. Kroke
{"title":"New cyclic and spirocyclic aminosilanes","authors":"Marcus Herbig, Henrik Scholz, U. Böhme, Betty Günther, Lia Gevorgyan, D. Gerlach, J. Wagler, Sandra Schwarzer, E. Kroke","doi":"10.1515/mgmc-2021-0007","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0007","url":null,"abstract":"Abstract New cyclic and spirocyclic aminosilanes were synthesised using ethylenediamine, 2-aminobenzylamine, 1,8-diaminonaphthalene, o-phenylenediamine, and trans-cyclohexane-1,2-diamine as starting material. These diamines were converted into aminosilanes using silicon tetrachloride and dimethyldichlorosilane directly and via the N,N’-bis(trimethylsilylated) amino derivatives. 15 new compounds of the type (diamino)(SiMe3)2, (diamino)2Si, (diamino)SiMe2, and (diamino)SiCl2 have been prepared. The formation of two cyclotrisilazane derivatives was observed starting from (N,N’-2-aminobenzylamino)dichlorosilane by trimerisation. All synthesised compounds have been characterised with NMR-, Raman-, or IR-spectroscopy, mass-spectrometry, and boiling or melting point. Single-crystal X-ray structure analyses of several derivatives have been performed. The degree of substitution with trimethylsilyl groups in the final compounds depends on the ring size of the spirocycles. It was shown with quantum chemical calculations on the M062X/6-31G(d) level that trimethylsilyl groups have a stabilising effect on 5-membered ring systems and a destabilising effect on 6-membered rings in these compounds.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"51 - 72"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/mgmc-2021-0007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48989631","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: 4
Synthesis and antimalarial activity of some triphenyltin(IV) aminobenzoate compounds against Plasmodium falciparum 三苯基锡(IV)氨基苯甲酸酯化合物的合成及其对恶性疟原虫的抗疟活性
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0028
S. Hadi, Mona Dwi Fenska, N. Noviany, H. Satria, W. Simanjuntak, M. Naseer
{"title":"Synthesis and antimalarial activity of some triphenyltin(IV) aminobenzoate compounds against Plasmodium falciparum","authors":"S. Hadi, Mona Dwi Fenska, N. Noviany, H. Satria, W. Simanjuntak, M. Naseer","doi":"10.1515/mgmc-2021-0028","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0028","url":null,"abstract":"Abstract This paper presents antimalarial activity of several triphenyltin(IV) aminobenzoate compounds synthesized from the reaction of triphenyltin(IV) hydroxide with 2-, 3-, and 4-aminobenzoic acid. The activity of the compounds as anti-malaria agents was evaluated using Plasmodium falciparum, and demonstrated that the compounds have about the same IC50 with that of chloroquine (2×10−3 μg/mL) applied as the positive control. The result also showed that the Plasmodium is non-resistent to the compounds synthesized, which is the opposite to chloroquine.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"256 - 260"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41783010","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: 10
Irregular topological indices of certain metal organic frameworks 某些金属有机框架的不规则拓扑指数
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0009
Y. Chu, Muhammad Abid, M. I. Qureshi, A. Fahad, A. Aslam
{"title":"Irregular topological indices of certain metal organic frameworks","authors":"Y. Chu, Muhammad Abid, M. I. Qureshi, A. Fahad, A. Aslam","doi":"10.1515/mgmc-2021-0009","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0009","url":null,"abstract":"Abstract It is interesting to study the molecular topology that provides a base for relationship of physicochemical property of a definite molecule. The topology of a molecule and the irregularity of the structure plays a vital character in shaping properties of the structure like enthalpy and entropy. In this article, we are interested to calculate some irregular topological indices of two classes of metal organic frameworks (MOFs) namely BHT (Butylated hydroxytoluene) based metal (M = Co, Fe, Mn, Cr) organic frameworks (MBHT) and M1TPyP-M2 (TPyP = 5, 10, 15, 20-tetrakis (4-pyridyl) porphyrin and M1, M2, = Fe and Co) MOFs. Also we compare our results graphically.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"73 - 81"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/mgmc-2021-0009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43177684","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: 15
M-polynomial-based topological indices of metal-organic networks 基于m -多项式的金属有机网络拓扑指标
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0018
Agha Kashif, S. Aftab, M. Javaid, H. Awais
{"title":"M-polynomial-based topological indices of metal-organic networks","authors":"Agha Kashif, S. Aftab, M. Javaid, H. Awais","doi":"10.1515/mgmc-2021-0018","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0018","url":null,"abstract":"Abstract Topological index (TI) is a numerical invariant that helps to understand the natural relationship of the physicochemical properties of a compound in its primary structure. George Polya introduced the idea of counting polynomials in chemical graph theory and Winer made the use of TI in chemical compounds working on the paraffin's boiling point. The literature of the topological indices and counting polynomials of different graphs has grown extremely since that time. Metal-organic network (MON) is a group of different chemical compounds that consist of metal ions and organic ligands to represent unique morphology, excellent chemical stability, large pore volume, and very high surface area. Working on structures, characteristics, and synthesis of various MONs show the importance of these networks with useful applications, such as sensing of different gases, assessment of chemicals, environmental hazard, heterogeneous catalysis, gas and energy storage devices of excellent material, conducting solids, super-capacitors and catalysis for the purification, and separation of different gases. The above-mentioned properties and physical stability of these MONs become a most discussed topic nowadays. In this paper, we calculate the M-polynomials and various TIs based on these polynomials for two different MONs. A comparison among the aforesaid topological indices is also included to represent the better one.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"129 - 140"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/mgmc-2021-0018","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45684549","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: 11
Coordination behavior of PPh2{C6H4[CH2N(CH2CH2)2O]-2}: Case study CdCl2[PPh2{C6H4[CH2N(CH2CH2)2O]-2}] PPh2{C6H4[CH2N(CH2CH2)2O]-2}的配位行为:以CdCl2[PPh2{C6H4[CH2N(CH2CH2)2O]-2}]为例
IF 1.8 3区 化学
Main Group Metal Chemistry Pub Date : 2021-01-01 DOI: 10.1515/mgmc-2021-0029
Ancuța Covaci, C. Silvestru, Anca Silvestru
{"title":"Coordination behavior of PPh2{C6H4[CH2N(CH2CH2)2O]-2}: Case study CdCl2[PPh2{C6H4[CH2N(CH2CH2)2O]-2}]","authors":"Ancuța Covaci, C. Silvestru, Anca Silvestru","doi":"10.1515/mgmc-2021-0029","DOIUrl":"https://doi.org/10.1515/mgmc-2021-0029","url":null,"abstract":"Abstract The reaction between CdCl2 and PPh2{C6H4 [CH2N(CH2CH2)2O]-2} (1) in a 1:1 molar ratio resulted in the cadmium(II) complex CdCl2[PPh2{C6H4[CH2N(CH2CH2)2O]-2}] (2). The complex 2 was characterized in solution by NMR spectroscopy (1H, 13C, and 31P). Single-crystal X-ray diffraction studies revealed no intramolecular N→P interaction in 1. The phosphane ligand behaves as a P,N chelating moiety in the cadmium complex 2, thus resulting in a species containing distorted tetrahedral environments around cadmium and phosphorus. Short intermolecular interactions CH‧‧‧π aryl and CH‧‧‧O in 1 and CH‧‧‧π aryl and CH‧‧‧Cl in 2 resulted in supramolecular networks.","PeriodicalId":48891,"journal":{"name":"Main Group Metal Chemistry","volume":"44 1","pages":"261 - 266"},"PeriodicalIF":1.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46204466","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
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