Synthesis and Structures of Cadmium(II) Complexes with (η⁶‐Benzenecarboxylate)tricarbonylchromium

Abstract

Abstract The reaction of (benzoic acid)tricarbonylchromium [(η 6 ‐C 6 H 5 COOH)Cr(CO) 3 ] with cadmium acetate in methanol or DMF led to the formation of the dinuclear cadmium compounds [Cd 2 {(η 6 ‐C 6 H 5 COO)Cr(CO) 3 } 4 (MeOH) 4 ] ( 1 ) or [Cd 2 {(η 6 ‐C 6 H 5 COO)Cr(CO) 3 } 4 (DMF) 4 ] ( 2 ) containing four organometallic ligands with four methanol or DMF molecules coordinated to the cadmium atoms. The reaction of (benzoic acid)tricarbonylchromium [(η 6 ‐C 6 H 5 COOH)Cr(CO) 3 ] and cadmium acetate with 1,10‐phenanthroline (1,10‐phen) afforded the dinuclear cadmium complex [Cd 2 {(η 6 ‐C 6 H 5 COO)Cr(CO) 3 } 4 (1,10‐phen) 2 ] ( 3 ) with two 1,10‐phenanthroline and four organometallic ligands. The reaction of (benzoic acid)tricarbonylchromium [(η 6 ‐C 6 H 5 COOH)Cr(CO) 3 ] with cadmium acetate in the presence of 4,4′‐bipyridine (4,4′‐bipy) led to the one‐dimensional coordination polymer [Cd 2 {(η 6 ‐C 6 H 5 COO)Cr(CO) 3 } 4 (4,4′‐bipy) 2 · 3DMF] n ( 4 ) containing a dinuclear cadmium complex as a repeating unit. The solid‐state structures of all the compounds were determined by single‐crystal X‐ray diffraction.