Biomolecular dynamics and electron spin resonance spectra of copper complexes of antitumour agents in solution

1987 ◽  
Vol 83 (1) ◽  
pp. 151 ◽  
Author(s):  
R. Basosi ◽  
L. Trabalzini ◽  
R. Pogni ◽  
W. E. Antholine
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Copper Complexes ◽  
Antitumour Agents ◽  
Biomolecular Dynamics ◽  
Spin Resonance

Nickel(II) and copper(II) complexes of the 'tripod' ligand tris(2-benzimidazylmethyl)amine

1978 ◽  
Vol 56 (10) ◽  
pp. 1311-1318 ◽  
Author(s):  
Laurence K. Thompson ◽  
Baratham S. Ramaswamy ◽  
Robert D. Dawe
Keyword(s):  
Electron Spin Resonance ◽  
Solid State ◽  
Electron Spin ◽  
Copper Complexes ◽  
Acetone Solution ◽  
The Other ◽  
Solution Structures ◽  
Spin Resonance ◽  
Resonance Data ◽  
Electron Spin Resonance Data

A series of nickel(II) and copper(II) complexes of the title ligand are reported which appear to exhibit predominantly pseudo-octahedral structures in the solid state. Anion bridged dimeric structures are proposed for both nickel and copper; [Ni2(NTB)2X2]Y2 (X = Y= Cl, Br; X = Cl, Br, NCS; Y = BPh4), [Cu2(NTB)2X2]X2•2H2O (X = Cl, Br). The other octahedral derivatives appear to be monomeric; (Ni(NTB)X2] (X = NO3, NCS), [Ni(NTB)-(H2O)X]Y (X = NCS, Y = BPh4; X = CH3CN, Y = (ClO4)2), [Ni(NTB)(H2O)2]X2•2H2O (X = ClO4, BF4), [Cu(NTB)(NO3)2]•H2O. Five-coordinate derivatives were uncommon and in the case of three copper complexes trigonalbipyramidal structures are suggested in the solid state; [Cu(NTB)CI]BPh4, [Cu(NTB)(H2O)]X2•nH2O (X = BF4, n = 0; X = ClO4, n = 1). In acetone solution ail the copper complexes appear to be five-coordinate. Electron spin resonance data confirm trigonalbipyramidal solution structures and indicate [Formula: see text]with very small values of [Formula: see text] (60 − 80 × 10−4 cm−1).

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