NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.50A [2011] >
IJC-A Vol.50A(11) [November 2011] >


Title: Synthesis, characterisation and catalytic activities of vanadium complexes containing ONN donor ligand (E)-4-[(2-(dimethylamino)ethylimino] methyl-5-(hydroxymethyl)-2-methylpyridin-3-ol
Authors: Maurya, Mannar R
Bisht, Manisha
Avecilla, Fernando
Keywords: Coordination chemistry
Encapsulated compounds
Catalysts
Oxidation
Oxidovanadium
ONN ligands
Issue Date: Nov-2011
Publisher: NISCAIR-CSIR, India
Abstract: Reaction between [VIVO(acac)2] and the ONN donor ligand (E)-4-[(2-(dimethylamino)ethylimino]methyl-5-(hydroxymethyl)-2-methylpyridin-3-ol (Hpydx-dmen) results in the formation of the complex [VIVO(acac)(pydx-dmen)] (1). In (1), the vanadium center adopts a distorted six-coordinated octahedral geometry where the ligand coordinates through one O and two N atoms; the oxo and two Oacac atoms complete the coordination sphere. The poorly stable oxidoperoxidovanadium(V) complex [VVO(O2)(pydx-dmen)] (2) has been prepared by the treatment of (1) with aqueous 30 % H2O2. Its formation has also been demonstrated in solution by treating (1) with H2O2 in methanol. Treatment of the ligand with vanadium(IV)–exchanged zeolite-Y followed by aerial oxidation gives the dioxidovanadium(V) complex encapsulated in the nano-cavity of zeolite-Y, [VVO2(pydx-dmen)]-Y (3). The encapsulated complex, [VVO2(pydx-dmen)]-Y (3), catalyses the oxidation of styrene, methyl phenyl sulfide, diphenyl sulfide and cyclohexene using H2O2 as oxidant in good yield.
Page(s): 1562-1573
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0975(Online); 0376-4710(Print)
Source:IJC-A Vol.50A(11) [November 2011]

Files in This Item:

File Description SizeFormat
IJCA 50A(11) 1562-1573.pdf377.2 kBAdobe PDFView/Open
 Current Page Visits: 632 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 555846 since 06-Feb-2009  Last updated on 15-Jul-2014Webmaster: nopr@niscair.res.in