423767-86-6Relevant academic research and scientific papers
Synthesis and spectroscopic characterization of μ4-S-containing double- and triple-butterfly iron carbonyl complexes
Song, Li-Cheng,Hu, Qing-Mei,Sun, Bao-Wei,Tang, Ming-Yi,Yang, Jing,Hua, Yu-Juan
, p. 1627 - 1632 (2002)
We first investigated the nucleophilic reactivities of the complex anions [(μ-RTe)(μ-CO)Fe2(CO)6]- (1), {(μ-RS)(μ-S-CS)[Fe2(CO)6]2(μ4 -S)}- (3), and {(μ-RS)(μ-S)[Fe2(CO)6]3(μ4- S)2}- (5) toward the electrophiles SCl2 and Cp(CO)2FeI, respectively. Interestingly, while anions 1 undergo a new type of double nucleophilic substitution reaction with SCl2 to give the series of one-μ4-S-containing double-butterfly iron carbonyl complexes [(μ-RTe)Fe2(CO)3]2(μ4-S) (2a, R = Et; 2b, R = Ph; 2c, R = p-MeC6H4; 2d, R = o-MeC6H4; 2e, R = α-C10H7), the single nucleophilic substitution reactions of anions 3 and 5 with Cp(CO)2FeI afford the one-,μ4-S-containing double-butterfly iron carbonyl complexes (μ-RS)[μ-Cp(CO)2FeSC=S][Fe2(CO)6]2 -(μ4-S) (4a, R = Me; 4b, R = Et; 4c, R = Ph; 4d, R = p-MeC6H4) and the two-μ4-S-containing triple-butterfly iron carbonyl complexes (μ-RS)[μ-Cp(CO)2FeS] [Fe2(CO)6]3(μ4-S)2 (6a, R = Me; 6b, R = Ph; 6c, R =p-MeC6H4), respectively. All the new complexes 2a-e, 4a-d, and 6a-c have been characterized by elemental analysis and IR and 1H NMR spectroscopy, 2a-e have been characterized as well by 125Te NMR spectroscopy, and 2a, 4c, and 6c have been characterized by crystal X-ray diffraction techniques.
