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Electrochemical synthesis of Co, Ni, and Zn complexes with 2‐Pyrrole‐[N‐( o ‐hydroxyphenyl)methylimines]: The crystal structure of 2,2′‐Bipyridine bis{2‐[(2‐pyrrole)methylimino]5‐methylphenolato}nickel(II)
Author(s) -
Castro J. A.,
Romero J.,
GarciaVazquez J. A.,
Castiñeiras A.,
Sousa A.
Publication year - 1993
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.19936190328
Subject(s) - nickel , pyrrole , crystal structure , crystallography , orthorhombic crystal system , chemistry , denticity , cobalt , electrochemistry , acetonitrile , octahedron , ligand (biochemistry) , bipyridine , supramolecular chemistry , 2,2' bipyridine , zinc , octahedral molecular geometry , inorganic chemistry , organic chemistry , electrode , biochemistry , receptor
Abstract The electrochemical oxidation of anodic cobalt, nickel, and zinc in acetonitrile containing both 2‐pyrrole‐[N‐( o ‐hydroxyphenyl)methylimines] (H 2 L) and a bidentate ligand (1, 10‐phenanthroline(phen) or 2,2′‐bipyridine(bipy)) yielded compounds of general formula M(HL) 2 · phen and M(HL) 2 · bipy (M = Co, Ni, Zn). The crystal structure of 2,2′‐bipyridine bis{2‐[(2‐pyrrole)methylimino]5‐methylphenolato}nickel(II) was determined by X‐ray diffraction. This compound crystallizes in the orthorhombic space group Pccn with a = 19.430(2), b = 28.488(2), c = 17.567(1) Å. The nickel atom has a distorted octahedral geometry, and the pyrrole nitrogen is not coordinated. The IR, 1 H‐NMR and UV‐visible spectra of the complexes are discussed and related to the structure.