Research Article: Bis[μ-bis­(diphenyl­phosphan­yl)methane-κ2P:P′]bis­[(isoquinoline-κN)silver(I)] bis­(trifluoro­methane­sulfonate)–isoquinoline (1/1)

Date Published: August 01, 2012

Publisher: International Union of Crystallography

Author(s): Xu Huang, Jing Li, Qi-Ming Qiu, Min Liu, Qiong-Hua Jin.


The title complex, [Ag2(C25H22P2)2(C9H7N)2](CF3SO3)2·C9H7N, was prepared by the reaction of silver(I) trifluoro­methane­sulfonate with isoquinoline and bis­(diphenyl­phosphan­yl)methane (dppm). The dinuclear mol­ecule is located about a center of inversion and the AgI atom is coordinated by two dppm P atoms and one isoquinoline N atom, forming an eight-membered metalla ring. In addition, in the asymmetric unit, there is a half-mol­ecule of isoquinoline located about a center of inversion. Since this mol­ecule does not possess this symmetry, for one position in the ring there is superposition of both a C atom of a C—H group and the isoquinoline N atom. In the structure, the Ag—P distances [2.4296 (9) and 2.4368 (9) Å] agree with the corresponding distances in related structures, while the Ag—N bond length [2.489 (3) Å] is slightly longer than that in related structures. On the other hand, the P—Ag—P angle [156.44 (3)°] is much larger than the corresponding angles in related structures. The trifluoro­methane­sulfonate anions do not coordinate to AgI atoms. As is usually found for these anions, the –CF3 group is disordered over two orientations [occupancies = 0.57 (12) and 0.43 (12)].

Partial Text

For background to silver(I) complexes, see: Bowmaker et al. (1993 ▶); Cui et al. (2010a ▶,b ▶); Jin et al. (2010a ▶,b ▶); Meijboom et al. (2009 ▶); Mu et al. (2010 ▶). For related structures, see: Jin et al. (2008 ▶); Song et al. (2010 ▶); Wu et al. (2009 ▶).




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