15709-76-9Relevant articles and documents
Studies on the effect of metal ions of hydrazone complexes on interaction with nucleic acids, bovine serum albumin and antioxidant properties
Sathyadevi, Palanisamy,Krishnamoorthy, Paramasivam,Jayanthi, Eswaran,Butorac, Rachel R.,Cowley, Alan H.,Dharmaraj, Nallasamy
, p. 83 - 96 (2012)
Three new transition metal complexes of the type ML2 (where M = Ni(II), Co(II) or Cu(II); HL = N′-[phenyl(pyridin-2-yl)methylidene]furan- 2-carbohydrazide]) have been prepared by treating [NiCl2(PPh 3)2], [CoCl2(PPh3)2] or [CuCl2(PPh3)2] with N′-[phenyl(pyridin-2- yl)methylidene]furan-2-carbohydrazide derived from furoic acid hydrazide and 2-benzoyl pyridine wherein the hydrazone ligand (L) coordinated to the respective metal ions in 1:2 stoichiometry to mononuclear octahedral complex. The crystal structure of the complexes [NiL2] (1), [CoL2] (2) and [CuL2] (3) solved using single crystals revealed a distorted octahedral geometry around the metal ion involving the coordination of an azomethine nitrogen, a pyridine nitrogen and an enolic oxygen derived from deprotonation of the ligand. From the bioinorganic application point of view, a detailed work on the binding of the complexes 1, 2 and 3 with CT DNA as well as BSA was undertaken along with DNA cleavage. In vitro assay on the antioxidant activity of the above complexes and hydrazone ligand revealed that they possess significant antioxidant activity. However, among the newly synthesized hydrazone complexes, complex 3 having coordinated Cu2+ ion in its molecular structure exhibited superior activity in all the biological studies in comparison with the other two complexes possessing nickel and cobalt ions with same ligand (L).
Trithiooxalate as varying bridging ligand - Crystal and molecular structure of μ-trithiooxalato-bis[bis(triphenylphosphane)copper(I)]
Strauch,Golic
, p. 1236 - 1240 (1996)
Due to its design, trithiooxalat (trto) as a multidentate, chalcogen-rich ligand allows different coordination possibilities. In contrast to the corresponding dinuclear silver complex [(Ph3P)2Ag]2(trto), which is side-on(S,S′)/end-on(S′,S″) coordinated, the title complex is exclusively side-on (S,S′ and S″,O) coordinated involving the oxygen donor atom. [(Ph3P)2Cu]2(trto) crystallizes in the triclinic space group P1 (No. 2) with a = 10.195(2), b = 13.090(3), c = 13.450(3) A, α = 116.10(2)°, β = 90.10(2)°, γ = 101.49(2)°, and Z = 1. The bridging ligand with its nonsymmetrical donor atom set is disordered around the centre of symmetry (inversion centre). Johann Ambrosius Barth 1996.
Steric demands in the formation of heteroleptic Cu(I) complexes with α-diimines and triphenylphosphine
Tseriotou, Eleni,Tzimopoulos, Dimitris,Hatzidimitriou, Antonis,Akrivos, Pericles
, p. 152 - 157 (2018/07/29)
The synthesis and the study of the molecular structure of a series of heteroleptic copper(I) compounds with triphenylphosphine and α-diimines presenting a varying degree of bulk at their chelating cite is reported. The most sterically crowded diimine acts as a monodentate ligand towards copper(I) promoting bridging of the halogen atom present in the metal coordination sphere and formation of a dimer. Evidence for this behavior is obtained from the electronic spectra and semiempirical quantum chemical calculations with MOPAC. Steric demands in all the studied compounds preclude coordination of silver(I) under similar reaction conditions.
Z-Selective Copper(I)-Catalyzed Alkyne Semihydrogenation with Tethered Cu-Alkoxide Complexes
Pape, Felix,Thiel, Niklas O.,Teichert, Johannes F.
supporting information, p. 15934 - 15938 (2015/11/03)
A highly stereoselective alkyne semihydrogenation with copper(I) complexes is reported. Copper-N-heterocyclic carbene complex catalysts, bearing an intramolecular Cu-O bond, allow for the direct transfer of both hydrogen atoms from dihydrogen to the alkyn
