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Unusual Two‐Dimensional Nickel( II ) Complexes Based on [Ni(dien)] 2+ and [M(CN) 4 ] 2− Building Blocks (M = Ni, Pd and Pt) − Synthesis, Structural Diversity and Magnetic Properties
Author(s) -
Muga Iñaki,
GutiérrezZorrilla Juan M.,
Vitoria Pablo,
Román Pascual,
Lezama Luis,
Beitia Javier I.
Publication year - 2004
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200300696
Subject(s) - chemistry , cationic polymerization , nickel , crystallography , aqueous solution , metal , stereochemistry , antiferromagnetism , transition metal , bilayer , medicinal chemistry , polymer chemistry , catalysis , organic chemistry , membrane , biochemistry , physics , condensed matter physics
Three novel polymeric compounds [Ni(dien)Ni(CN) 4 ] n (H 2 O) n ( 1 ), [Ni(dien)Pd(CN) 4 ] n ( 2 ), and [Ni(dien)Pt(CN) 4 ] n ( 3 ) were synthesised by reaction of [{Ni(dien)(H 2 O)} 2 (μ‐ox)](PF 6 ) 2 with [M(CN) 4 ] 2− (M = Ni, Pd, Pt) in aqueous solution. The structure of these compounds contains two [Ni(dien)] 2+ cationic units bridged by two [M(CN) 4 ] 2− anions in a cis fashion, generating a square‐shaped [Ni 2 −M 2 ] metal core. The different linking modes between the cores afford a 2D bilayer with encapsulated water in compound 1 and corrugated layers in compounds 2 and 3 . These coordination modes are compared to the different bridging modes of tetracyanometalate‐containing compounds retrieved from the CSD database. The three compounds present a very weak antiferromagnetic coupling between the octahedrally coordinated Ni II ions. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)