A new class of triazepine-ruthenium(II) complexes: synthesis, crystal structure and NMR spectroscopic properties

Two unprecedented three-dimensional ruthenium(II) complexes I and II derived from 2-methyl-5-oxo-7-phenyl-3-thioxo-3,4,5,6 tetrahydro-2H-1,2,4-triazepine (HTAZO) and 2-methyl-7-phenyl-3,5-dithioxo-3,4,5, 6-tetrahydro-2H-1,2,4-triazepine (H(2)TAZS) have been prepared by the reaction of these triazepines with [Ru(p-cymene)Cl-2](2) in the presence of triethylamine. NMR spectroscopic and X-ray diffraction studies of the structures of the resulting complexes reveal different behavior of HTAZO and H(2)TAZS in the coordination process. (C) 2001 Published by Elsevier Science B.V. All rights reserved.