Synthesis, structural characterization, encapsulation in zeolite y and catalytic activity of an oxidovanadium(V) complex with a tribasic pentadentate ligand

Mannar R. Maurya, Manisha Bisht, Nikita Chaudhary, Fernando Avecilla, Umesh Kumar, Hua Fen Hsu

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Reaction of [VIVO(acac)2] with H3hap-dahp (I: Schiff base derived from 2-hydroxyacetophenone and 1,3-diamino-2- hydroxypropane) in methanol under aerobic conditions resulted in the formation of the complex [VVO(hap-dahp)] (1). Treatment of I with vanadium(IV) exchanged zeolite Y followed by aerial oxidation gave the encapsulated oxidovanadium(V) complex [VVO(hap-dahp)]-Y (2) in the nanocavity of zeolite Y. Elemental analysis, spectroscopic (IR, electronic, 1H and 51V NMR) studies, scanning electron micrographs and X-ray diffraction patterns have been used to characterize these complexes, which have a distorted octahedral structure, confirming the tribasic O3N2 binding mode of the ligand. The encapsulated complex [VVO(hap-dahp)]- Y (2) catalyzes the oxidation of styrene, methyl phenyl sulfide and diphenyl sulfide using H2O2 as an oxidant in good yield (82%, 98% and 81%, respectively). Styrene, under optimized reaction conditions, gave five reaction products, namely styrene oxide, benzaldehyde, 1-phenylethane-1,2-diol, benzoic acid and phenylacetaldehyde, while the organic sulfides gave the corresponding sulfoxides as the major product. The neat complex [V VO(hap-dahp)] (1) also exhibits good catalytic activity for these substrates. The encapsulated complex showed a good recycling ability.

Original languageEnglish
Pages (from-to)180-188
Number of pages9
JournalPolyhedron
Volume54
DOIs
Publication statusPublished - 2013 Apr 30

Fingerprint

Zeolites
Styrene
styrene oxide
Encapsulation
styrenes
catalytic activity
sulfides
Catalyst activity
Ligands
Sulfoxides
Oxidation
Vanadium
ligands
Benzoic Acid
Schiff Bases
Sulfides
synthesis
Reaction products
Oxidants
Diffraction patterns

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Maurya, Mannar R. ; Bisht, Manisha ; Chaudhary, Nikita ; Avecilla, Fernando ; Kumar, Umesh ; Hsu, Hua Fen. / Synthesis, structural characterization, encapsulation in zeolite y and catalytic activity of an oxidovanadium(V) complex with a tribasic pentadentate ligand. In: Polyhedron. 2013 ; Vol. 54. pp. 180-188.
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Synthesis, structural characterization, encapsulation in zeolite y and catalytic activity of an oxidovanadium(V) complex with a tribasic pentadentate ligand. / Maurya, Mannar R.; Bisht, Manisha; Chaudhary, Nikita; Avecilla, Fernando; Kumar, Umesh; Hsu, Hua Fen.

In: Polyhedron, Vol. 54, 30.04.2013, p. 180-188.

Research output: Contribution to journalArticle

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T1 - Synthesis, structural characterization, encapsulation in zeolite y and catalytic activity of an oxidovanadium(V) complex with a tribasic pentadentate ligand

AU - Maurya, Mannar R.

AU - Bisht, Manisha

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AU - Avecilla, Fernando

AU - Kumar, Umesh

AU - Hsu, Hua Fen

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