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Angew. Chem. Int. Ed., 2010, 49, 4767-4770

D. Liu, Z. �G. Ren, H. �X. Li, J. �P. Lang*, N. �Y. Li, B. F. Abrahams,

发布者:系统管理员  发布时间:2013-08-07  浏览次数:0

 

Single-crystal-to-single-crystal (SCSC) transformations of two 3D coordination polymers {[Zn4(μ3-OH)2(5-SIPA)2(1,4-bpeb)2]·4H2O}n (1) and [Cd2(1,3-PDA)2(1,4-bpeb)2]n (3) gave rise to the corresponding 3D coordination polymers {[Zn4(μ3-OH)2(5-SIPA)2(bpbpvpcb)]·2H2O}n (2) and [Cd2(1,3-PDA)2(tppcp)]n (4) through photochemical [2+2] cycloaddition reactions. The formation of the different regio-specific products, bpbpvpcb in 2 and tppcp in 4 in the two SCSC tranformations may be ascribed to the geometries of the metal/carboxylate fragments, chairlike [Zn4(μ3-OH)2(5-SIPA)2] in 1 and planar [Cd2(1,3-PDA)2] in 3.

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