Synthesis, characterization and molecular structure of a new (η6-p-cymene) ruthenium(II) amidine complex, [(η6-p-cymene)Ru{NH=C(Me)3,5-dmpz}(3,5-Hdmpz)](BF4)2•H2O

A new arene ruthenium(II) complex [(eta(6)-p-cymene)Ru(L)(3,5-Hdmpz)](BF4)(2) . H2O (L = 1-methylcarbaldimino-3,5-dimethylpyrazole; 3,5-Hdmpz=3,5-dimethylpyrazole) has been synthesized. The ligand L has been generated in situ through the condensation of 3,5-dimethylpyrazole and acetonitrile in the presence of [{(eta(6)-p-cymene)RuCl2}(2)]. The complex [(eta(6)-p-cymene)Ru{NH=C(Me)3,5-dmpz}(3,5-Hdmpz)](BF4)(2) . H2O crystallizes in monoclinic space group P2(1)/c, a=10.943(2), b=26.394(7), c=11.502(1)Angstrom, beta=115.43(1)degrees, V=3000.1(19) Angstrom(3) and Z=4. The compound has been characterized by FTIR, H-1 NMR, 2D-COSY NMR spectroscopy and a single-crystal X-ray diffraction study.