Chain Compounds of Rhodium(II) Trifluoroacetate Linked by p-Quinone [Rh2(O2CCF3)4(p-Q)] n,p-Q=1,4-Benzoquinone, 1,4-Naphthoquinone, and 2,3-Dimethyl-l,4-benzoquinone

Article abstract of DOI:10.1246/bcsj.69.3483

A series of chain complexes of rhodium(II) trifluoroacetate, [Rh₂(O₂CCF₃)₄(p-Q)]_n (p-Q = 1,4-benzoquinone (1,4-bq), 1,4-naphthoquinone (1,4-nq), and 2,3-dimethyl-1,4-benzoquinone (2,3-dmbq)) have been prepared. The chain structures were confirmed by the X-ray structure analyses. The carbonyl oxygens of the p-quinones are coordinated to the Rh₂ centers with the distances of 2.248(5) (for p-Q = 1,4-bq), 2.248(3) (for p-Q = 1,4-nq), and 2.247(9) A (forp-Q = 2,3-dmbq), respectively. The bridging mode of the p-quinone was discussed in relation to the substituent effect of CF₃ group on the carboxylate.