Facile synthesis of σ,μ-iminoacyl bridged butterfly clusters (μ-RE)(σ,μ-ArCNAr′)Fe2(CO)6 (E=S, Se)
作者:Chao-Guo Yan、Jing Sun、Jie Sun
DOI:10.1016/s0022-328x(99)00190-4
日期:1999.8
The reactive anionic salts [Et3NH][(mu-RE)(mu-CO)Fe-2(CO)(6)] (1) (RE = PhS, PhSe) reacted with N-arylbenzimidoyl chloride Ph(Cl)C=NAr' (2) (Ar = Ph, 4-MeC6H4, 4-C6H4) in THF to give butterfly sigma,mu-iminoacyl bridged hexacarbonyldiiron clusters (mu-RE)(sigma,mu-PhC=NAr') Fe-2(CO)(6) (3a-e) in moderate yields. The structure of the new clusters was characterized by elemental analyses, IR and H-1-NMR spectroscopy. X-ray diffraction confirmed the crystal structure of (mu-PhSe)(sigma,mu-PhC=NPh)Fe-2(CO)(6) (3a). It crystallizes in the triclinic space group P1 (no. 2) with a = 11.224(3), b = 13.542(4), c = 8.9559(2) Angstrom, alpha = 102.32(2), beta = 91.95(2), gamma = 70.20(2)degrees, V = 1250.1(6) Angstrom(3), Z = 2 and D-calc = 1.636 g cm(-3). (C) 1999 Elsevier Science S.A. All rights reserved.