Velusamy, Marappan ; Palaniandavar, Mallayan ; Thomas, K. R. Justin (1998) Cis-facial coordination of bis(pyrid-2-ylmethyl)amine (bpma). Synthesis, structure and spectral behaviour of [Ni(bpma)2]2+ Polyhedron, 17 (13-14). pp. 2179-2186. ISSN 0277-5387
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S02775...
Related URL: http://dx.doi.org/10.1016/S0277-5387(98)00059-X
Abstract
Nickel(II) bis-complexes of bis(pyrid-2-ylmethyl)amine (bpma) and bis(benzimidazol-2-ylmethyl)amine (bbma) have been isolated. The complexes have been characterised using IR,UV-VIS and 1H NMR spectral techniques. The pink complex [Ni(bpma)2](ClO4)2 crystallises in the orthorhombic space group Fdd2, with a = 22.12(2), B = 28.087(2), C = 8.857(3) Å, α = β = GG = 90° and Z = 8. The nickel(II) atom hasa slightly distorted octahedral structure in which the ligands are cis-facially coordinated. The M---Npy bond length in [M(bpma)2]2+ [M=Mn(II), Fe(II), Ni(II), Cu(II), Zn(II)] complexes decrease and then increase with increase in d-orbital population. The ligand field parameters of the new complexes are compared with those of other complexes with NiN6 chromophore.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Nickel(II); Synthesis; Spectra; Crystal Structure; NiN6 Chromophore; Cis-facial Coordination |
| ID Code: | 30919 |
| Deposited On: | 27 Dec 2010 07:00 |
| Last Modified: | 05 Mar 2011 06:07 |
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