Stability and Applications of Coordination Compounds最新文献

Ligands and Coordination Compounds Used as New Photosensitized Materials for the Construction of Solar Cells 作为新型光敏材料的配体和配位化合物在太阳能电池中的应用

Stability and Applications of Coordination Compounds Pub Date : 2020-05-09 DOI: 10.5772/INTECHOPEN.92268

Y. Torres

{"title":"Ligands and Coordination Compounds Used as New Photosensitized Materials for the Construction of Solar Cells","authors":"Y. Torres","doi":"10.5772/INTECHOPEN.92268","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.92268","url":null,"abstract":"Ligand with conjugated π systems presents high planar and delocalized electronic density, which allows it to capture the radiations with an energy interval of wavelengths between 400 and 600 nm. The ligands can be linked to inorganic materials favoring the interchange in the system. Lewis acids improve the electronic distribution between donor and acceptor favoring the optical and electronic properties, yielding superior efficiencies. In this chapter, the evolution of the ligands such as Porphyrins, Metal-free organic dyes, and Ruthenium complexes used, and the construction of solar cells is described. In this context, three different small-molecule acceptors-donors are reported; o -PDT, m -PDT and p -PDT, based on phenyldiammine (PD) as spacer, and Thiazole (T) were designed and synthesized. There were estimated electronic, optical and photovoltaic parameters for these molecules. The interaction energies of functional groups for PD and T molecules, with DFT/B3LYP method, gas phase with 6-31g (d, 2p) basis sets, were represented and computed. The best photovoltaic parameters were described for p -PDT with PCE 26.18%, Jsc = 14.79 mAcm 2 and Δ E = 2.66 eV. The metal ion influences the electronic properties and decreases the Δ E GAP. The incorporation of the transition metals into hyperconjugated systems provides rigidity and effects of electronic back donation.","PeriodicalId":389527,"journal":{"name":"Stability and Applications of Coordination Compounds","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128077570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Stability of Metal Complexes 金属配合物的稳定性

Stability and Applications of Coordination Compounds Pub Date : 2020-03-05 DOI: 10.5772/intechopen.90894

S. Muthaiah, A. Bhatia, M. Kannan

引用次数: 6

Crystal Structure and Solid-State Properties of Metal Complexes of the Schiff Base Ligands Derived from Diacetylmonoxime: A Brief Review 二乙酰一肟类席夫碱配体金属配合物的晶体结构和固态性质综述

Stability and Applications of Coordination Compounds Pub Date : 2020-02-19 DOI: 10.5772/intechopen.90171

P. Mandal, U. Das, K. Dey, Saikat Sarkar

引用次数: 0

Salen and Related Ligands Salen及其相关配体

Stability and Applications of Coordination Compounds Pub Date : 2020-01-23 DOI: 10.5772/intechopen.88593

A. Asatkar, M. Tripathi, Deepali Asatkar

引用次数: 3

Stability of Vanadium Chalcone Complexes 钒查尔酮配合物的稳定性

Stability and Applications of Coordination Compounds Pub Date : 2020-01-23 DOI: 10.5772/intechopen.88072

V. Borge, R. Patil

{"title":"Stability of Vanadium Chalcone Complexes","authors":"V. Borge, R. Patil","doi":"10.5772/intechopen.88072","DOIUrl":"https://doi.org/10.5772/intechopen.88072","url":null,"abstract":"The vanadyl(IV) complexes of substituted chalcones were prepared by reflux-ing vanadyl sulphate with different substituted chalcones in ethanoic medium. The chalcones were prepared with different aromatic aldehydes like benzaldehyde, hydroxy benzaldehyde, nitro benzaldehyde and chloro benzaldehyde. The synthesized Vanadium complexes were characterized by different spectral techniques. The IR spectral studies revealed that the chalcone derivatives are bidentate ligand. Magnetic studies, electron spin resonance and UV studies suggest that the complexes are in square pyramidal geometry. Conductance measurements suggest that all complexes are non-electrolyte in DMF. The thermal study explained the stability of complex and its decomposition. The synthesized ligand and metal complexes were screened for their antibacterial activity against E. coli and Staphylococcus aureus bacterial strains and for antifungal activity against P. notatum . and square pyramidal geometry of the VO(II) complexes which is supported by the electronic spectra. The IR spectra shows bonding of the metal through O-donor atoms of the ligands. In this study VO(II) complexes shows the moderate activity against Escherichia coli , Staph aureus bacteria and against P. notatum fungi.","PeriodicalId":389527,"journal":{"name":"Stability and Applications of Coordination Compounds","volume":"2009 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125588814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Stability Constants of Metal Complexes in Solution 金属配合物在溶液中的稳定性常数

Stability and Applications of Coordination Compounds Pub Date : 2019-11-25 DOI: 10.5772/INTECHOPEN.90183

Jagvir Singh, Abhay Nanda Srivastav, N. Singh, Anuradha Singh

{"title":"Stability Constants of Metal Complexes in Solution","authors":"Jagvir Singh, Abhay Nanda Srivastav, N. Singh, Anuradha Singh","doi":"10.5772/INTECHOPEN.90183","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.90183","url":null,"abstract":"In the formation of metal complexes in an aqueous medium, equilibrium constant or stability constant is used to determine the strength of interaction between reagents that make the final product after the formation of bonds. In general stability means that a complex may be stored for a long time under suitable conditions or this compound may be existing under suitable conditions. Regarding how much is the concentration of complexes in solution, stability constant provides this information via calculations. These calculations are very much important in many areas of science like chemistry, biology, and medicine. During the complex formation in aqueous medium, two types of stabilities are considered: one is the thermodynamic stability, and the other is kinetic stability. Stability of metal complexes may be affected by various factors like nature of central metal ion and ligand, chelating effect, etc., and some parameters like distribution coefficients, conductance, refractive index, etc. are useful for the determination of stability constants. Various modern techniques are used to determine the stability constant of simple as well as mixed ligand compounds.","PeriodicalId":389527,"journal":{"name":"Stability and Applications of Coordination Compounds","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128574173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 21

Schiff Bases and Their Metallic Derivatives: Highly Versatile Molecules with Biological and Abiological Perspective 希夫碱及其金属衍生物:具有生物学和非生物学视角的高度通用分子

Stability and Applications of Coordination Compounds Pub Date : 2019-04-30 DOI: 10.5772/INTECHOPEN.80799

M.K.I. Khan, S. Gul, M. Khan

引用次数: 5

Chiral Mono- and α-Diimines and Their Pd(II) Complexes with Anticancer Activity 具有抗癌活性的手性单亚胺和α-二亚胺及其Pd(II)配合物

Stability and Applications of Coordination Compounds Pub Date : 2018-11-05 DOI: 10.5772/INTECHOPEN.80796

G. Hernández, Daniela Gutiérrez, Gloria E. Moreno, O. Portillo, René Gutiérrez, E. Brambila

引用次数: 1