Results 61 to 70 of about 115,259 (306)

Synthesis, Characterization, Biological Activity and DNA Binding Studies of Metal Complexes with 4-Aminoantipyrine Schiff Base Ligand

E-Journal of Chemistry, 2012
A new series of transition metal complexes of Cu(II),Ni(II),Co(II), Zn(II) and VO(IV) have been synthesized from the Schiff base ligand (L) derived from 4-amino antipyrine and 5- bromo salicylaldehyde.
B. Anupama, M. Padmaja, C. Gyana Kumari
doaj   +1 more source

Syntheses, physicochemical characterization, antibacterial studies on potassium morpholine dithiocarbamate nickel (II), copper (II) metal complexes and their ligands

Heliyon, 2019
Organic molecule dithiocarbamate transition metal complexes are novel and very attractive pharmaceutical targets for the management and control of antibiotic resistant bacteria. The direct reaction has synthesized new transition metal nickel (II), copper
Senthilkumar Balakrishnan, Senbagam Duraisamy, Murugan Kasi, Selvam Kandasamy, Rajesh Sarkar, Anbarasu Kumarasamy   +5 more
doaj   +1 more source

Excitonic Complexes in Two-Dimensional Transition Metal Dichalcogenides

Nature Communications, 2023
The enhanced Coulomb interaction in two dimensions leads to not only tightly bound excitons but also many-particle excitonic complexes: excitons interacting with other quasiparticles, which results in improved and even new exciton properties with better ...
Xiaotong Chen, Zhen Lian, Yuze Meng, Lei Ma, Su-Fei Shi   +4 more
doaj   +1 more source

Organometallic half-sandwich iridium anticancer complexes [PDF]

, 2011
The low-spin 5d6 IrIII organometallic half-sandwich complexes [(η5-Cpx)Ir(XY)Cl]0/+, Cpx = Cp*, tetramethyl(phenyl)cyclopentadienyl (Cpxph), or tetramethyl(biphenyl)cyclopentadienyl (Cpxbiph), XY = 1,10-phenanthroline (4−6), 2,2′-bipyridine (7−9 ...
Liu, Zhe, Bruijnincx, P.C.A., Brabec, V., Clarkson, Guy J., Sally A. Fletcher, Liu, Z., Vrana, O., Guy J. Clarkson, Fletcher, Sally A., Vrana, Oldrich, Salassa, Luca, Brabec, V. (Viktor), Fletcher, S.A., Kisova, A., Peter J. Sadler, Clarkson, G.J., Pizarro, A.M., Viktor Brabec, Bruijnincx, Pieter C. A., Oldrich Vrana, Sadler, P. J., Pieter C. A. Bruijnincx, Zhe Liu, Salassa, L., Luca Salassa, Habtemariam, A., Inorganic Chemistry and Catalysis, Sub Inorganic Chemistry and Catalysis, Pizarro, Ana M., Sadler, Peter J., Ana M. Pizarro, Kisova, Anna, Habtemariam, Abraha, Abraha Habtemariam, Anna Kisova   +34 more
core   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

A hexagonal planar transition-metal complex [PDF]

Nature, 2019
Transition-metal complexes are widely used in the physical and biological sciences. They have essential roles in catalysis, synthesis, materials science, photophysics and bioinorganic chemistry. Our understanding of transition-metal complexes originates from Alfred Werner's realization that their three-dimensional shape influences their properties and ...
Garçon, M, Bakewell, C, Sackman, GA, White, AJP, Cooper, RI, Edwards, AJ, Crimmin, MR   +6 more
openaire   +4 more sources

Influence of transition metal electron configuration on the structure of metal-EDTA complexes

, 2022
The vibrational spectra of cold complexes of ethylenediaminetetraacetic acid (EDTA) with transition metal dications in vacuo show how the electronic structure of the metal provides a geometric template for interaction with the functional groups of the ...
Anna I., Krylov, Maristella, Alessio, Madison M., Foreman, J. Mathias, WEBER   +3 more
core   +1 more source

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

FEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman, Katarzyna Stapor, Leszek Konieczny, Krzysztof Gądek, Piotr Nowakowski   +4 more
wiley   +1 more source

Transition metal complexes bearing atropisomeric saturated NHC ligands

, 2021
International audienceFrom achiral imidazolinium salts, chiral transition metal complexes containing an N-heterocyclic carbene (NHC) ligand were prepared (metal = palladium, copper, silver, gold, rhodium).
Nava, Paola, Bocquin, Lucas, Lucas Bocquin, Mariia Savchuk, Muriel Albalat, Hervé Clavier, Stéphane Humbel, Hérault, Damien, Nicolas Vanthuyne, Albalat, Muriel, Paola Nava, Clavier, Hervé, Humbel, Stéphane, Jean, Marion, Damien Hérault, Vanthuyne, Nicolas, Marion Jean, Savchuk, Mariia   +17 more
core   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source