|
| Section2 = }} Pentaamine(nitrogen)ruthenium(II) chloride is an inorganic compound with the formula ()Cl2. It is a nearly white solid, but its solutions are yellow. The cationic complex is of historic significance as the first compound with N2 bound to a metal center.〔Alen. A. D.; Senoff, C. V. (1965) "Nitrogenopentammineruthenium(II) complexes" ''Chemical Communications'' 24: 621-2. 〕〔Senoff, C.V. (1990) "The discovery of ()2+: A case of serendipity and the scientific method" ''Journal of Chemical Education'', volume 67: 368. 〕 [Ru(NH3)5(N2)2+ adopts an octahedral structure with C4v symmetry.〔Fergusson, J. E.; Love, J. L.; Robinson, W. T. (1972) "The Crystal and Molecular Structure of Dinitrogenpentaammineosmium(II) Chloride, [Os(NH3)5N2]Cl2, and Related Ruthenium Complexes" ''Inorg. Chem.'', 11, pp. 1662–1666. 〕 ==Preparation and properties== Pentaamine(nitrogen)ruthenium(II) chloride is synthesized in an aqueous solution from pentaamminechlororuthenium(II) chloride, sodium azide, and :()Cl2 + NaN3 → ()Cl2 + ... If it is to be used ''in situ'', the cation can be made more conveniently from ruthenium(III) chloride and hydrazine hydrate:〔 :RuCl3 + 4 N2H4 → ()2+ + ... This N2 complex is stable in aqueous solution and has a relatively low ligand exchange rate with water. Being a d6 complex, the Ru-N bond is stabilized by the Pi backbonding, the donation of metal d-electrons into the N2 π * orbitals.〔Taube, H. "Chemistry of Ruthenium(II) and Osmium(II) Ammines" ''Pure and Applied Chemistry'', 1979, volume 51, p. 901–12. doi|10.1351/pac197951040901}}〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pentaamine(dinitrogen)ruthenium(II) chloride」の詳細全文を読む スポンサード リンク
|