Synthesis of Enantiopure Oxorhenium(V) and Arylimidorhenium(V) “3 + 2” Schiff Base Complexes. X-ray Diffraction, Cyclic Voltammetry, UV−Vis, and Circular Dichroism Characterizations

2001 ◽  
Vol 40 (26) ◽  
pp. 6767-6773 ◽  
Author(s):  
Virginie M. Béreau ◽  
Saeed I. Khan ◽  
Mahdi M. Abu-Omar
Keyword(s):  
Cyclic Voltammetry ◽  
Schiff Base ◽  
Circular Dichroism ◽  
Schiff Base Complexes ◽  
X Ray Diffraction ◽  
X Ray ◽  
Circular Dichroïsm

scholarly journals Tetranuclear Cu(ii)-chiral complexes: synthesis, characterization and biological activity

RSC Advances ◽  
2019 ◽  
Vol 9 (42) ◽  
pp. 24087-24091 ◽  
Author(s):  
Krisana Peewasan ◽  
Marcel P. Merkel ◽  
Kristof Zarschler ◽  
Holger Stephan ◽  
Christopher E. Anson ◽  
...  
Keyword(s):  
Biological Activity ◽  
Schiff Base ◽  
Single Crystal ◽  
Cd Spectroscopy ◽  
Schiff Base Complexes ◽  
X Ray Diffraction ◽  
Chiral Complexes ◽  
Enantiomerically Pure ◽  
X Ray

A pair of tetranuclear chiral Cu(ii)-Schiff-base complexes were synthesized using enantiomerically pure (S)-H2L and (R)-H2L ligands. These were characterised using single-crystal X-ray diffraction and CD spectroscopy and their biological activity tested.

Anti-mycobacterial activities of copper(II) salicylaldimine complexes derived from long-chain aliphatic amines

2013 ◽  
Vol 91 (11) ◽  
pp. 1093-1097 ◽  
Author(s):  
Alyssa E. Patterson ◽  
Eric G. Bowes ◽  
Allyson Bos ◽  
Taryn O’Neill ◽  
Haoxin Li ◽  
...  
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Schiff Base ◽  
Aliphatic Amines ◽  
Schiff Base Complexes ◽  
Aliphatic Chain ◽  
X Ray Diffraction ◽  
X Ray ◽  
Microwave Assisted ◽  
Long Chain

Twelve copper(II) Schiff base complexes derived from lipophilic amines have been prepared using either salicylaldehyde or ortho-vanillin via a microwave-assisted reaction. All complexes have been obtained elementally pure and an X-ray diffraction of an isopentyl derivative has confirmed the structure of these compounds. All complexes showed a promising degree of anti-mycobacterial activity against Mycobacterium tuberculosis, where activity seemed to increase with an increase in the length of the aliphatic chain.

Synthesis, Characterization, and Antimicrobial Activities of New Organic-Inorganic Hybird Compound Based on Polyoxovanadate and Metal-Schiff-Base Complex

2015 ◽  
Vol 1105 ◽  
pp. 215-219
Author(s):  
Qiong Wu ◽  
Xiao Lin Ji ◽  
Lu Jing ◽  
Hong Ping Ju ◽  
Hai Wang
Keyword(s):  
Schiff Base ◽  
Human Cancer ◽  
Synergetic Effect ◽  
Schiff Base Complex ◽  
Antimicrobial Activities ◽  
Schiff Base Complexes ◽  
X Ray Diffraction ◽  
Base Complex ◽  
X Ray ◽  
Vis Spectroscopy

The reaction of polyoxovanadate and metal-Schiff base complex resulted in the formation of a new organic-inorganic hybrid compounds with the formula Na2[Mn (Salen)(H2O)2]4[V10O28]·9H2O (1) (salen=N,N’-ethylene-bis (salicylideneiminate). Compound 1 have been structurally characterized by IR, UV-vis spectroscopy and single crystal X-ray diffraction. Crystal data for 1: Triclinic, P-1, a=14.1123(3)Å, b=13.9397(7) Å, c=14.2564(5)Å, α=65.4160(9)°, β=81.3920(6)°, γ=89.5740(7) °. Structural analyses revealed that compound 1 represent a rare example of isopolyoxovanadate based metal-Schiff-base complexes, moreover, this is the first POM based metal Schiff-base complex isolated in aqueous solution medium, which may also propose a green chemical way to the synthesis of POM based hybrid. Compare with isopolyoxovanadate precusor Na6 [V10O28], compound 1 exhibit higher antimicrobial activities against human cancer cell, the phenomenon can be explained by the synergetic effect between POM and Schiff-base complex.

X-ray diffraction and magnetic circular dichroism study of the Fe edge of epitaxial permalloy/Ru/permalloy trilayer

2004 ◽  
Vol 345 (1-4) ◽  
pp. 213-216 ◽  
Author(s):  
Ming-Zhe Lin ◽  
Chih-Hao Lee ◽  
Kuan-Li Yu ◽  
J.C.A. Huang ◽  
W.C. Chen
Keyword(s):  
Circular Dichroism ◽  
Magnetic Circular Dichroism ◽  
X Ray Diffraction ◽  
X Ray ◽  
Circular Dichroïsm
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