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Hydrothermal Synthesis, Crystal Structures and Effect of Non Bonding Interactions in Crystal Packing of Two Mixed‐Ligand Metal Complexes with Glycolato and 2,2′‐Dipiridylamine and with Benzilato and Imidazole
Author(s) -
Carballo Rosa,
Covelo Berta,
VázquezLópez Ezequiel M.,
GarcíaMartínez Emilia,
Castiñeiras Alfonso,
Janiak Christoph
Publication year - 2005
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.200570007
Subject(s) - chemistry , imidazole , crystallography , hydrogen bond , carboxylate , ligand (biochemistry) , octahedron , metal , infrared spectroscopy , crystal structure , hydrothermal circulation , oxygen , hydrothermal synthesis , chelation , oxygen atom , inorganic chemistry , stereochemistry , molecule , organic chemistry , biochemistry , receptor , seismology , geology
Abstract Two new mixed‐ligand complexes [Fe(HG) 2 (dipyam)] ( 1 ) (HG = glycolato and dipyam = 2,2′‐dipyridylamine) and [Cu(HB) 2 (im) 2 ]·2H 2 O ( 2 ) (HB = benzilato and im = imidazole) have been hydrothermally synthesized and structurally characterised by X‐ray diffraction. In both cases the metallic centre is in an octahedral environment, strongly distorted in 2 (4+2 coordination). The α‐hydroxycarboxylato ligands (glycolato or benzilato) present different coordinative behaviour, bidentade chelate through the hydroxyl oxygen and one carboxy oxygen in 1 and through the two oxygen atoms of the carboxylate group in 2 . The complexes are extended into 2D frameworks through hydrogen bonding and π···π or C‐H···π interactions. The complexes were also characterized by elemental analysis, FT‐IR and UV‐vis spectroscopy and room temperature magnetic measurements.