Bhattacharjee, Manish ; Chaudhuri, Mihir K. ; Islam, Nashreen S. ; Paul, Pradip C. (1990) Synthesis, characterisation and physicochemical properties of peroxo-vanadium(v) complexes with glycine as the hetero-ligand Inorganica Chimica Acta, 169 (1). pp. 97-100. ISSN 0020-1693
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00201...
Related URL: http://dx.doi.org/10.1016/S0020-1693(00)82041-1
Abstract
The first glycine---peroxo complexes of vanadium- (V), NH4[VO(O2)2GlyH].H2O (1), K[VO(O2)2- GlyH].H2O (2)and [V2O2(O2)3(GlyH)2(H2O)2] (3) have been synthesised from the reaction of V2O5 with hydrogen peroxide and glycine (GlyH) at pH 3-4 (1 and 2) and pH 2 (3), respectively. The compounds have been characterised by elemental analysis, magnetic susceptibility and ESR, UV---Vis and IR spectroscopy. While glycine, occurring in its zwitterionic form, is coordinated to the V(V) centre in a monodentate fashion through its carboxylic oxygen, the peroxides in 1 and 2 occur as terminal bidentate ones. In compound 3 one of the peroxide ligands is present as a μ-peroxo group. Typically, an aqueous solution of 2 exhibits peroxo---V(V) LMCT bands at 328 and in the 200-190 nm region, whereas complex 3 shows only one broad LMCT band at 310-330 nm.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 23407 |
| Deposited On: | 25 Nov 2010 09:05 |
| Last Modified: | 30 May 2011 07:29 |
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