Synthesis, Spectroscopic Properties and Crystal Structural Characterization of a Triphenyltin(Ⅳ) Complex with 5-Bromonicotinic Acid

摘要

A novel organotin complex [Ph_3Sn(C_2H_5OH)(OCOC_5H_3NBr)SnPh_3(OCOC_5H_3NBr)] has been synthesized by the reaction of 5-bromonicotinic acid with triphenyltin hydroxide in ethanol and characterized by elemental analysis, IR and ~1H NMR. The crystal structure was determined by X-ray single-crystal diffraction. The crystal belongs to the monoclinic system, space group P2_1/c with a = 15.564(2), b = 24.975(4), c = 12.2973(19) A, β = 92.224(2)°, Z = 4, V = 4776.5(13) A~3, D_c = 1.596 g/cm~3, μ(MoKα) = 2.765 mm~(-1), F(000) = 2264, R = 0.0385 and wR = 0.0667. In the molecular structure of the title complex, the tin atoms are five-coordinated in a trigonal bipyramidal geometry.