The reaction of RuCl3 with the pyridyltriazole ligand (DMF, reflux) gives a mixture of coordination isomers (85% yield) from which the isomer (I) ( P21/n, Z=4) is obtained by crystallization techniques.
The mononuclear and binuclear Ru(II) complexes (I) and (II) are prepared by 1:1.2 and 2.2:1 molar reaction of dichlorobis(2,2'‐bipyridine)‐Ru(II) with the bis(pyridinyl)triazole ligand in EtOH/H2O and isolated as their PF6‐ salts.
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