915787-82-5Relevant academic research and scientific papers
Reactions of diiron nonacarbonyl with pyrrolyl-, pyridyl- and thienyl-substituted azines: N{single bond}N bond cleavage, cyclometallation and C{double bond, long}N σ and π-bonding
Wu, Chih-Yu,Chen, Yi,Jing, Shiau-Yi,Lee, Chen-Shiang,Dinda, Joydev,Hwang, Wen-Shu
, p. 3053 - 3065 (2006)
The reactions of 1,4-di-(N-methyl-2′-pyrrolyl)-2,3-diaza-1,3-butadiene (1), 1,4-di-(6-methyl-2′-pyridyl)-2,3-diaza-1,3-butadiene (2) and 3,6-di-(2′-thienyl)-1,2,4,5-tetrazine (3) with Fe2(CO)9 in toluene, THF and benzene, respectively, yielded various types of hexacarbonyldiiron complexes with five different coordination modes: (1) a complex with two 2-pyrrolylmethylideneamido bridging ligands, 1a, which resulted from N{single bond}N bond cleavage of ligand 1, (2) a cyclometallated (μ-2,3-η1:η2-pyrrolyl; η1:η1(N)) complex 1b and a cyclometallated (μ-2,3-η1:η2-thienyl; η1:η1(N)) complex 3b, (3) a diaza-bridged complex 3a, (4) an imine-bridged (μ-σ;π-η1:η2-(C,N); η1(Npy)) complex 2a and (5) an imine-bridged (μ - π - η1 : η1 - (C, N) ; η1 (Npy) ; η1 (Npy′)) complex 2b. The molecular structures of the ligands 1 and 3 as well as of the complexes 1a, 2a and 3a have been determined by single-crystal X-ray crystallography.
