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Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.46A [2007] >
IJC-A Vol.46A(10) [October 2007] >
| Title: | Synthesis and physicochemical studies of a new molybdenum (IV)-pterin complex undergoing reaction with trimethylamine N-oxide |
| Authors: | Ghosh, Baidyanath
Roy, Parag S |
| Issue Date: | Oct-2007 |
| Publisher: | CSIR |
| IPC Code: | Int. Cl. ⁸ C07F11/00 |
| Abstract: | A new compound, [MoIVL₂].3CH₃OH (2), has been synthesized using a redox reaction between Na₂MoO₄.2H₂O and
2-pivaloylamino-6-phenacyl-isoxanthopterin, and characterized by elemental analysis, electrospray ionization mass spectrometry, various spectroscopic methods and cyclic voltammetry. Its optimized geometry (with lowest steric energy) has been obtained by molecular mechanics method; the optimized bond lengths and bond angles data tally with the literature
X-ray structural data. Both the kinetic and stoichiometric aspects of its reaction with Me₃N→O have been studied. The negative ΔS# (J K⁻¹ mol⁻¹) value (-282.8) is consistent with an associative mechanism for this process. The product of this reaction has been isolated and characterized to be a μ-oxo binuclear Mo(V) complex, indicating oxygen atom transfer nature of this reaction. ¹H-NMR, fluorescence spectra and CV data indicate the redox “non-innocent” behavior of the pterin ligand in the present case. |
| Page(s): | 1585-1593 |
| ISSN: | 0376-4710 |
| Source: | IJC-A Vol.46A(10) [October 2007]
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