have been synthesized in high yields. These complexes were identified by 1H 13C} NMR and elemental analyses. Structures for 2b, 2c and 2f were further confirmed by X-ray crystallography. Structural characterization of these complexes reveals crowded environments around the zirconium. Complexes 2b and 2c adopt six-coordinate, distorted octahedral geometry around the zirconium center, in which the equatorial
一系列新型的单
氯半
锆茂配合物,包含ClCP'Zr [X-2-R 1 -4-R 2 -6-(Ph 2 P O)C 6 H类型的氧化膦-(
硫代)
酚盐螯合
配体2 ] 2(CP'= C 5 H ^ 5,图2a:X = O,R 1 =苯基,R 2 = H; 2B:X = O,R 1 = F,R 2 = H; 2C:X = O, R 1 = t Bu,R 2 = H;2d:X = O,R 1 = R 2 =t Bu; 2e:X = O,R 1= SiMe 3,R 2= H;2f:X = S,R 1= SiMe 3,R 2= H;CP'= C 5我5,2克:X = O,R 1 =森达3,R 2 = H),已经以高收率合成。这些配合物通过1 H 13 C} NMR和元素分析鉴定。结构为2B,2C和2FX射线晶体学进一步证实了这一点。这些复合物的结构表征揭示了
锆周围拥挤的环境。配合物2b和2c在
锆中心周