Synthesis, crystal structures, and magnetic properties of heterodimetallic Ru iii -3D coordination compounds based on a meridional tricyanoruthenium(III) building block
Journal
European Journal of Inorganic Chemistry
Journal Volume
2015
Journal Issue
6
Pages
1065-1073
Date Issued
2015
Author(s)
Abstract
Abstract The synthesis, crystal structures, and magnetic properties of three cyano‐bridged heterodimetallic compounds prepared from the paramagnetic Ru III building block mer ‐[Ru III (CN‐sap)(CN) 3 ] 2– ( 1 ) are described. Complex 1 reacts with [Mn II (L N5 )(Cl)(H 2 O)]Cl and [Mn II (bipy) 2 (Cl) 2 ] (bipy = bipyridine) to produce the 1D zigzag chain {[Ru III (CN‐sap)(CN)](μ‐CN) 2 [Mn II (L N5 )] · 3MeOH} n { 2 ; L N5 = 2,13‐dimethyl‐3,6,9,12,18‐pentaazabicyclo[12.3.1]octadeca‐1(18),2,12,14,16‐pentaene, CN‐sapH 2 = 2‐hydroxy‐ N ‐(2‐hydroxyphenyl)benzimidoyl cyanide} and the octanuclear compound {[Ru III (CN‐sap)(CN)](μ‐CN) 2 [Mn II (bipy)(MeOH)][Ru III (CN‐sap)](μ‐CN) 3 [Mn II (bipy) 2 ]} 2 · 8MeOH ( 3 ), respectively. The Mn II centers have a pentagonal‐bipyramidal environment in 2 and a distorted octahedral environment in 3 . Complex 1 reacts with [Ni II (cyclen)(Cl) 2 ] (cyclen = 1,4,7,10‐tetraazacyclododecane) in MeOH to produce the molecular square {[Ru III (CN‐sap)(CN)](μ‐CN) 2 [Ni II (cyclen)]} 2 · 8MeOH ( 4 ). Compounds 2 and 3 exhibit antiferromagnetic coupling between the Ru III and Mn II centers, whereas 4 exhibits ferromagnetic coupling between the Ru III and Ni II centers through the cyano bridges.
Type
journal article