Ligand exchange reactions starting from [Re(CO)3Br3]2−. Synthesis, characterization and structures of rhenium(I) tricarbonyl complexes with thiourea and thiourea derivatives
作者:Ulrich Abram、Sonja Abram、Roger Alberto、Roger Schibli
DOI:10.1016/0020-1693(96)05014-1
日期:1996.7
the monoclinic space group P21/n,a = 143675(3), b = 13.372(1), c = 28.841 (7) A, s = 102.53(1)°, Z = 8. The mean ReS bond length is 2.529 A. N,N-Dialkylbenzoylthioureas react with (Et4N)2[Re(CO)3)Br3] to form neutral [Re(CO)3Br(HR2btu)] complexes. With the rhenium(I) centers under study they coordinate bidentately, but without deprotonation, which is unusual for this class of chelate ligands. [Re(CO)3Br(HEt2btu)]
阴离子rh(I)配合物fac- [Re(CO)3Br3] 2-已与硫脲(tu),N,N-二烷基苯甲酰基硫脲(HR2btu)和N,N-二烷基硫代氨基甲酰基苯甲m(HR12tcbR2)反应双核rh(I)配合物。所有新化合物都是空气稳定的,并且对水性介质不敏感。Fac- [Re(CO)3(tu)3](NO3)是由溴配合物通过添加AgNO3之后沉淀AgBr并随后与硫脲反应而形成的。该化合物与单斜空间群P21 / n中的一分子(Et4N)NO3共结晶,a = 143675(3),b = 13.372(1),c = 28.841(7)A,s = 102.53(1) °,Z =8。平均ReS键长度为2.529A。N,N-二烷基苯甲酰基硫脲与(Et4N)2 [Re(CO)3)Br3]反应形成中性[Re(CO)3Br(HR2btu)]复合体。在研究study(I)中心的过程中,它们会进行双齿协调,但没有去