C5-BPP is a highly efficient N-donor ligand for the separation of trivalent actinides, An(iii), from trivalent lanthanides, Ln(iii). The molecular origin of the selectivity of C5-BPP and many other N-donor ligands of the BTP-type is still not entirely understood. We present here the first NMR studies on C5-BPP Ln(iii) and An(iii) complexes. C5-BPP is synthesized with 10% 15N labeling and charac...

Electrooptical devices and optical communications need compounds with second-order nonlinear (NLO) properties as construction blocks. Typically, to show a large quadratic hyperpolarizability, compound should be asymmetric, characterized by variation between the dipole moments in excited ground states, have low energy electronic transitions. For example, hyperpolarizability can reached when an e...

Abstract Series of linear tridentate PN Ph P R ‐ligands (R=Me, Et, Pln, Ph, Cyp, i Pr, Cy, t Bu) and molybdenum tricarbonyl complexes [Mo(CO) 3 ] (R=Ph, Cy,) were synthesized characterized using NMR‐, IR‐, Raman spectroscopy as well X‐ray crystallography. The influence the different phosphine donor groups ligands on bonding activation CO is investigated. Importantly, all are found to adopt a fa...

Porphyrins constitute a class of attractive materials for harvesting sunlight and promote chemical reactions following their natural activity the photosynthetic process in plants. In this work, we employ an in-silico design strategy to propose novel porphyrin-based as photocatalysts hydrogen evolution reaction (HER). More specifically, set meso-substituted porphyrins with donor-acceptor archite...

The molecular and electronic structures and electron transport characteristics of a Co complex are investigated using first principles calculations. The Co complex belongs to the D(2d) point group, and its two ligands are perpendicular to each other. The central atom Co forms a distorted octahedron with six donor N atoms. In a low oxidation state, the bond length between Co and pyrrole nitrogen...

New complexes of trivalent cobalt with substituted thiosemicarbazone ligands having an NNS donor system {HL1 = 4-(4-nitrophenyl)-1-((pyridin-2-yl)methylene)thiosemicarbazide and HL2 4-(2,5-dimethoxyphenyl)-1-((pyridin-2-yl)methylene)thiosemicarbazide} were synthesized via the in situ oxidation divalent chloride accompanying its addition to ligands. The C1 C2 characterized elemental (CHNS) analy...

First eight-electron, Pt–Ag superatoms protected by Se-donor ligands are synthesized ligand replacement reaction. The metal framework of PtAg 20 changes from low symmetry ( C 2 ) to high T h via rearrangement five capping silver atoms.

a series of 3-hydroxypyridin-4-one derivatives (hpos) were synthesized and their partition coefficient values (k part ) were determined. the cytotoxic effects of these iron chelators against hela cancer cells were also evaluated. the ic 50 of hpos was determined using mtt assay. among these ligands, compound 4e (k part =5.02) with an ic 50 of 30 µm and 4f (k part =0.1) with an ic 50 of 700 µm s...