Aryldiazenido ruthenium(II) complexes. Structure and characterization of p-tolyldiazenido carbonyl-ruthenium(II) coordination compound and its reaction with pyrazole and pyridine
作者:Jan G. Małecki、Anna Maroń、Tadeusz Groń、Monika Oboz
DOI:10.1016/j.poly.2014.06.014
日期:2014.10
The p-tolyldiazenido ruthenium [RuCl2(CO)(PPh3)(2)(N2PhCH3)] (1) and [RuCl2(CO)(PPh3)(2)(HPz)(2)] (2) and [RuCl2(CO)(PPh3)(py)] (3) coordination compounds were synthesized and characterized by IR, H-1, C-13, P-31 NMR, electronic absorption and X-ray crystallography. The structural parameters showed the bent coordination mode of N2PhCH3 ligand in complex (1) but the measured magnetic susceptibility showed a week response to the ac applied magnetic field and a lack of a Curie-Weiss region means diamagnetism. The most spectacular observation concerns the ZFC-FC splitting, however, the product chi center dot T versus temperature T is revealing none to the anomaly. The reactions of (1) with pyrazole and pyridine lead to monophosphine complexes so it may be used as a precursor for the synthesis of the new monophosphine carbonyl ruthenium coordination compounds(II). (C) 2014 Elsevier Ltd. All rights reserved.