Rh(I) complexes with fluorinated 2,2′-bipyridines

• Published in: Inorganic chemistry communications Vol. 18; pp. 61 - 64
• Main Authors: Campos-Carrasco, Ariadna, Tortosa-Estorach, Clara, Masdeu-Bultó, Anna M.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.04.2012
• Subjects: Bipyridine; Carbonyl; Cyclooctadiene; Rhodium; Supercritical carbon dioxide; Cyclooctadiene; Supercritical carbon dioxide; Rhodium; Carbonyl; Bipyridine
• ISSN: 1387-7003; 1879-0259
• DOI: 10.1016/j.inoche.2012.01.010

Rh(I) cyclooctadiene (cod) and carbonyl complexes with fluorinated 2,2′-bipyridines (N-N) have been prepared. The fluorinated tail was introduced as an alky group or through an ester function in the 4,4′- or 5,5′-positions. The X-ray structure of the cyclooctadiene complexes [Rh(cod)(4)][PF6] and [Rh(cod)(L4)][PF6] shows the square-planar coordination around the metal centre, and, in the case of complex with the ester function [Rh(cod)(4)][PF6] the fluorinated tails adopt a relative anti disposition of the ester groups. The electronic properties of the N-N ligands were studied through the stretching ν(CO) infrared frequencies of the corresponding carbonyl complexes [Rh(CO)2(N-N)][PF6]. Rh(I) cyclooctadiene and carbonyl complexes with fluorinated 2,2′-bipiridines (N-N) have been prepared in order to study the electronic properties of the N-N ligands. The X-ray structure of the cyclooctadiene complexes [Rh(cod)(4)][PF6] and [Rh(cod)(L4)][PF6] have been determined. [Display omitted] ► New Rh(I) complexes with fluorinated bipyridines have been prepared. ► The electronic properties of the fluorinated bipyridines are similar to those non-fluorinated. ► The X-ray structure of the Rh(I) cyclooctadiene complexes with fluorinated bipyridines have been determined.