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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/669

Title: Synthesis, characterization, reactivity and structure of some mono and binuclear (n6-p-cymene)ruthenium(II) complexes
Authors: Gupta, Dharmendra Kumar
Sahay, Abhaya Nand
Pandey, Daya Shankar
Jha, Narendra Kumar
Sharma, Pankaj
Espinosa, G
Cabrera, A
Puerta, M Carmen
Valerga, Pedro
Keywords: Arene-ruthenium complexes
Mononuclear complexes
Bridged ruthenium complexes
Metathetic reactions
Issue Date: 1998
Citation: Journal of Organometallic Chemistry, 568(1-2), 13–20
Abstract: Reactions of [{Ru(n6-C10H14)Cl2}2] (n6-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(n6-C1-H14)Cl2}2(m-CNPy)] and the mononuclear complex [Ru(n6-C1-H14)Cl2(CNPy)].The latter complex further reacts with [{Ru(n6-C6Me6)Cl2}2] and [Ru(n5- C5H5)(PPh3)2Cl] to give 4-cyanopyridine bridged complexes [Cl2(n6-C1-H14)Ru(m-CNPy)Ru(n6-C6Me6)Cl2] and [Cl2(n6- C1-H14)Ru(m-CNPy)Ru(n5-C5H5)(PPh3)2].The complex [Ru(n6-C1-H14)Cl2(CNPy)] also undergoes metathetical reactions with EPh3 (E-P, As or Sb) to give complexes with the general formulations [Ru(n6-C1-H14)Cl2(EPh3)], however its reaction with diphenylphosphinomethane (dppm) in a 1:1 ratio gives the mononuclear complex [Ru(n6-C10H14)Cl2(dppm)] in which the dppm ligand is present in uncommon coordination mode (n1-dppm). The reaction products have been characterized by microanalyses and spectroscopic studies (IR, 1H-, 13C-, 31P-NMR). The structure of [Ru(n6-C1-H14)Cl2(CNPy)] [a=10.984(1), b=14.052(1), c=12.189(1) A3 ; b=114.810(1)Â; 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(h6-C10H14)Cl2(dppm)] [a=11.504(3), b=19.532(3), c=15.942(3) A3 ; b=96.08(2)Â; V=3562(2) A3; Dcalc=1.446 g cm=3; monoclinic P21:n; Z=4] has been determined by X-ray crystallography.
URI: http://eprint.iitd.ac.in/dspace/handle/2074/669
Appears in Collections:Chemistry

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