Results 1 to 10 of about 46,269 (316)

Investigation of antimicrobial potencies of mixed-ligand complexes of divalent metal ions with Barbituric acid and 2,2-Bipyridine [PDF]

International Research Journal of Science, Technology, Education, and Management, 2023
The development of resistance by many pathogenic microorganisms towards many conventional antibiotic drugs has now become one of the major worldwide health challenges, which requires a search for more effective drugs to combat the growing threat of ...
Oluwabiyi J. Olaoye, Mary A. Oladipo, Kayode T. Ishola, Omobola A. Odedokun, Olayinka G. Ogunlade   +4 more
doaj   +1 more source

Synthesis, Characterization and Anticancer Study of New3-[(2Z)-2(2-hydroxybenzylidene) hydrazinyl]-5-(2-hydroxyphenyl)-1, 3, 4-oxadiazol-3-ium and its Transition Metal Complexes

مجلة علوم ذي قار, 2023
A new ligand 2-{5-[2-(2-hydroxybenzylidene)hydrazinyl]-1,3,4-oxadiazol-2-yl}phenol (L)  was prepared  and  characterized  by Infrared Spectra, H1 Nuclear magnatic resonance, C13 Nuclear magnatic resonance , and mass spectroscopy.
Hadeel Al alawy, Ibrahim.A.Flifel
doaj   +1 more source

Study of interaction of metal ions with methylthymol blue by chemometrics and quantum chemical calculations

Scientific Reports, 2021
In this study, we determine the acidity constants of methylthymol blue (MTB) and association constants of its complexes with the ZnII, CuII, and FeII metal ions (MIs), through theoretical and experimental means.
Zolaikha Rasouli, Mehdi Irani, Sonia Jafari, Raouf Ghavami   +3 more
doaj   +1 more source

Oligocyclopentadienyl Transition Metal Complexes [PDF]

Synlett, 2002
Synthesis, characterization, and reactivity studies of oligocyclopentadienyl transition metal complexes, namely those of fulvalene, tercyclopentadienyl, quatercyclopentadienyl, and pentacyclopentadienyl(cyclopentadienyl) are the subject of this account. Thermal-, photo-, and redox chemistries of homo- and heteropolynuclear complexes are described.
de Azevedo, Cristina G., Vollhardt, K. Peter C.   +1 more
openaire   +2 more sources

Properties of the excited electronic states of guanine quartet complexes with alkali metal cations [PDF]

Journal of the Serbian Chemical Society, 2020
G-quartets are supra-molecular structures that consist of four guanine molecules connected by eight hydrogen bonds. They are additionally stabilized by metal cations.
Milovanović Branislav Ž., Petković Milena M., Etinski Mihajlo R.   +2 more
doaj   +1 more source

Synthesis and Characterization of Bipyridyl-(Imidazole)_n Mn(II) Compounds and Their Evaluation as Potential Precatalysts for Water Oxidation

Molecules, 2023
Metalloenzymes make extensive use of manganese centers for oxidative catalysis, including water oxidation; the need to develop improved synthetic catalysts for these processes has long motivated the development of bioinspired manganese complexes. Herein,
Ge Mu, Ryan B. Gaynor, Baylee N. McIntyre, Bruno Donnadieu, Sidney E. Creutz   +4 more
doaj   +1 more source

Analysis of Biological Activities of Two Novel Metal (II) Complexes of Andrographis Paniculata Crude Extract

Biology, Medicine & Natural Product Chemistry, 2023
Many diseases in nature have led to the death of many young and old. Many bacteria have developed resistance to the available antibiotics on the market. And many drugs employed in treating many diseases such as diabetes mellitus are expensive and are not
Mary Adelaide Oladipo, Ayodele Oluwabunmi Ojo, Kayode Taiwo Ishola   +2 more
doaj   +1 more source

Beyond Chiral Organic (p-Block) Chromophores for Circularly Polarized Luminescence: The Success of d-Block and f-Block Chiral Complexes

Frontiers in Chemistry, 2020
Chiral molecules are essential for the development of advanced technological applications in spintronic and photonic. The best systems should produce large circularly polarized luminescence (CPL) as estimated by their dissymmetry factor (glum), which can
Benjamin Doistau, Juan-Ramón Jiménez, Claude Piguet   +2 more
doaj   +1 more source

Correlated Hybridization in Transition-Metal Complexes [PDF]

Physical Review Letters, 2006
We apply local orbital basis density functional theory (using SIESTA) coupled with a mapping to the Anderson impurity model to estimate the Coulomb assisted or correlated hybridization between transition metal d-orbitals and ligand sp-orbitals for a number of molecular complexes.
Huebsch, A., Lin, J. C., Pan, J., Cox, D. L.   +3 more
openaire   +3 more sources

Critical roles of metal–ligand complexes in the controlled synthesis of various metal nanoclusters

Nature Communications, 2023
Metal nanoclusters (NCs), an important class of nanoparticles (NPs), are extremely small in size and possess quasi-molecular properties. Due to accurate stoichiometry of constituent atoms and ligands, NCs have strong structure-property relationship.
Ji Soo Kim, Hogeun Chang, Sungsu Kang, Seungwoo Cha, Hanguk Cho, Seung Jae Kwak, Namjun Park, Younhwa Kim, Dohun Kang, Chyan Kyung Song, Jimin Kwag, Ji-Sook Hahn, Won Bo Lee, Taeghwan Hyeon, Jungwon Park   +14 more
doaj   +1 more source