Syntheses and characterization of some chloro, methoxy, and mercapto derivatives of [Ru(η 2-2,2′-bipyridine) 3] 2+2PF 6 − : crystal and molecular structures of [Ru(η 2-2,2′-bipyridine) 2(η 2-4,4′-(X) 2-2,2′-bipyridine)] 2+2PF 6 − (X=Cl, OCH 3)

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Nucleophilic substitutions involving [Ru(η 2-bipy) 2{η 2-bipy–Cl 2}] 2+ (bipy=2,2′-bipyridine; bipy–Cl 2=4,4′-dichloro-2,2′-bipyridine) and OCH 3 − , SH −, and S(4-CH 3–C 6H 4) − were carried out, and the resulting disubstituted products were characterized analytically and spectroscopically. Moreover, [Ru(η 2-bipy) 2{η 2-bipy–Cl 2}] 2+2PF 6 − and [Ru(η 2-bipy) 2{η 2-bipy–(OCH 3) 2}] 2+2PF 6 − were structurally characterized by single crystal X-ray diffraction.