名称:
Dinuclear thioether half-sandwich ruthenium(II) complexes of the types [{RuL′([9]aneS3)}2(µ-L)n]2+(n= 1, L′= PPh3; n= 2, L′= MeCN), [{Ru([9]aneS3)}2(µ-L)2]2+and [{Ru([9]aneS3)}2(µ-L)3]+with heterocyclic thioamides L ([9]aneS3= 1,4,7-trithiacyclononane)
摘要:
Reaction of [Ru(MeCN)(3)([9]aneS(3)-KAPPA(3)S)][CF3SO3](2)([9]aneS(3)=1,4,7-trithiacyclononane) with 1,3-benzothiazol-2-thione (Hbtt) and pyridine-2-thione (Hpyt) in methanol in a 1:1 molar ratio afforded dinuclear complexes [{Ru([9]aneS(3)-KAPPA(3)S)}(2)(mu-L)(2)][CF3SO3](2) (L=btt or pyt) in which the ligands exhibit a tridentate mu-1KAPPAS:2KAPPA(2)N,S bridging mode. Crystallization of the btt complex from acetonitrile yielded [{Ru(MeCN)([9]aneS(3)-KAPPA(3)S)}(2)(mu-btt)(2)][CF3SO3](2) with mu-S bridging ligands. A triply mu-S bridged complex [{Ru([9]aneS(3)-KAPPA(3)S)}(2)(mu-btt)(3)][CF3SO3] was obtained from [Ru(MeCN)(3)([9]aneS(3)-KAPPA(3)S)][CF3SO3](2)and btt(-) in a 2:3 molar ratio. Fragments (Ph(3)P)([9]aneS(3)-KAPPA(3)S)Ru-II can be bridged with tetra- or tri-dentate dtuc(2-) (H(2)dtuc=2,4-dithiouracil) anions in [{Ru(PPh(3))([9]aneS(3)-KAPPA(3)S)}(2)(mu-dtuc)](2+) and [{RuCl(PPh(3))([9]aneS(3)-KAPPA(3)S)}(mu-dtuc){Ru(PPh(3))([9]aneS(3)-KAPPA(3)S)}](+). The structures of four complexes have been determined by X-ray crystallography.