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Synthesis, Characterization, and Catalytic Performance in Oxidation of Styrene and α‐Methyl Styrene of a Nickel(II) Complex Derived from a Schiff Base Ligand
Author(s) -
Heshmatpour Felora,
Rayati Saeed,
Afghan Hajiabbas Mona,
Neumüller Bernhard
Publication year - 2011
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201100040
Subject(s) - styrene , acetophenone , nickel , schiff base , styrene oxide , ligand (biochemistry) , benzaldehyde , chemistry , orthorhombic crystal system , polymer chemistry , catalysis , copolymer , crystal structure , medicinal chemistry , crystallography , organic chemistry , polymer , biochemistry , receptor
A tetrahedrally‐distorted square‐planar nickel(II) complex of tetradentate Schiff base ligand derived from 2‐hydroxypropiophenone and 2,2′‐dimethylpropandiamine [bis(2‐hydroxypropiophenone)2,2′‐dimethylpropylenediimine] ( H 2 L ) was prepared and used as catalyst for oxidation of styrene and α‐methyl styrene with tert ‐butylhydroperoxide (TBHP). Oxidation of styrene with TBHP gave benzaldehyde and styrene oxide, but in the case of α‐methylstyrene a mixture of α‐methylstyrene oxide and acetophenone was obtained. The structure of nickel(II) complex ( NiL ) was determined by X‐ray crystallography. Crystal data for NiL at –173 °C: orthorhombic, space group P 2 1 2 1 2 1 , a = 907.7(1), b = 1289.4(1), c = 1752.4(1) pm, Z = 4, R 1 = 0.0454.