114809-70-0Relevant academic research and scientific papers
Synthesis, characterization, reactivity and structure of some mono and binuclear (η6-p-cymene)ruthenium(II) complexes
Gupta, Dharmendra Kumar,Sahay, Abhaya Nand,Pandey, Daya Shankar,Jha, Narendra Kumar,Sharma, Pankaj,Espinosa,Cabrera,Puerta, M. Carmen,Valerga, Pedro
, p. 13 - 20 (1998)
Reactions of [{Ru(η6-C10H14)Cl2}2] (η6-C10H14=p-cymene H3C-C6H4-CH(CH3)2) with 4-cyanopyridine (referred hereafler as CNPy) in 1:1 and 1:2 molar ratios in dichloromethane yields the binuclear complex [{Ru(η6-C10H14)Cl2} 2(μ-CNPy)] and the mononuclear complex [Ru(η6-C10H14)Cl2(CNPy)]. The latter complex further reacts with [{Ru(η6-C6Me6)Cl2}2] and [Ru(η5-C5H5)(PPh3) 2Cl] to give 4-cyanopyridine bridged complexes [Cl2(η6-C10H 14)Ru(μ-CNPy)Ru(μ6-C6Me 6)Cl2] and [Cl2(η6-C10H 14)Ru(μ-CNPy)Ru(η5-C5H 5)(PPh3)2]+. The complex [Ru(η6-C10H14)Cl2(CNPy)] also undergoes metathetical reactions with EPh3 (E=P, As or Sb) to give complexes with the general formulations [Ru(η6-C10H14)Cl2(EPh 3)], however its reaction with diphenylphosphinomethane (dppm) in a 1:1 ratio gives the mononuclear complex [Ru(η6-C10H14)Cl2(dppm)] in which the dppm ligand is present in uncommon coordination mode (η1-dppm). The reaction products have been characterized by microanalyses and spectroscopic studies (IR, 1H-, 13C-, 31P-NMR). The structure of [Ru(η6-C10H14)Cl2(CNPy)] [a=10.984(1), b=14.052(1), c=12.189(1) A; β=114.810(1)°; V=1707.8(4) A3; Dcalc=1.596 g cm-3; monoclinic P21/c; Z=4] and confirmation of uncommon coordination mode of dppm, in [Ru(η6-C10H14)Cl2(dppm)] [a=11.504(3), b=19.532(3), c=15.942(3) A; β=96.08(2)°; V=3562(2) A3; Dcalc=1.446 g cm-3; monoclinic P21/n; Z=4] has been determined by X-ray crystallography.
