高等学校化学研究 ›› 2006, Vol. 22 ›› Issue (3): 271-273.
• Articles • 下一篇
HE Yi, CHEN Wei, YANG Jin, XI Chun-yu, CHEN Jie-sheng
HE Yi, CHEN Wei, YANG Jin, XI Chun-yu, CHEN Jie-sheng
摘要: A new polyborate containing chiral metal-complex Zn (en)3 B5 O7 (OH)3, where en = ethylenediamine, was synthesizedunder solvothermal conditions and structurally characterized by means of X-ray diffraction analysis. Crystal data: Zn (en)3 B5 O7 (OH)3, monoclinic, space group P21/c, a = 0. 8532 (72) nm, b = 2. 3340 (5) nm, c =0.9526(92) nm, β=107.04(3)°, Z=4, V=1.8140(6) nm3, Dc =1.694 g/cm3,μ=1.416 mm-1, F(000)960, GOF= 1.020, R = 0.0276, Rw = 0. 0828. There is a chira l Zn(en)32+ com plex cation and an iso lated B5O7· =(OH)32- group in a Zn(en)3B5O7 (OH)3 molecule. The enantiomer of the chiral complex cation is separated orderly as Δ and Λ configurations in the compound and the borate group consists of two B3O3 cycles linked through a bridging boron atom.