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Polydentate 4-Pyridyl-terpyridine Containing Discrete Cobalt Phosphonate and Polymeric Cobalt Phosphate as Catalysts for Alcohol Oxidation

Authors
  • BHAT, GA
  • RAJENDRAN, A
  • MURUGAVEL, R
Publication Date
Dec 03, 2018
Source
DSpace at IIT Bombay
Keywords
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Unknown
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Abstract

Mononuclear discrete cobalt phosphonate [Co(pytpy)(tBuPO(3)H)(2)(H2O)]center dot H2O (1) and 1D zigzag polymeric cobalt phosphate [Co(pytpy)(2)(dipp)(MeOH)center dot 2MeOH](n) (2) were prepared from the reactions of tert-butyl phosphonic acid (tBuPO(3)H(2)) and organic-soluble 2,6-diisopropylphenyl phosphate (dippH(2)) ligands with Co(OAc)(2)center dot 4H(2)O in the presence of 4'-pyridyl 2,2':6',2 ''-terpyridine in MeOH/CHCl3(1:1 v/v) solvent mixture at 25 degrees C. The new compounds were characterized by analytical, thermo-analytical, and spectroscopic techniques. Further, the molecular structures were established by single-crystal X-ray diffraction studies. Mass spectrometry analysis reveal that both the compounds exist in the solution phase as dimers. Compound 1 was employed as homogeneous catalysts for alcohol oxidation reactions using tert-butyl hydroperoxide (TBHP) as the oxidant.

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