Assembly of a new cyano-bridged 4f-3d dimer Sm(DMSO)(4)-(H2O)(3)Cr(CN)(6) and crystal structure of [K-3(18-crown-6)(3-)(H2O)(4)]Cr(CN)(6)center dot 3H(2)O

作者：Zhou BC; Kou HZ^*; He Y; Wang RJ; Li YD; Wang HG

来源：Chinese Journal of Chemistry, 2003, 21(3): 352-355.

• cyano-bridged complex
• crystal structure
• binuclear
• lanthamde hexacyanometallate
• crown ether

A new cyano-bridged binuclear 4f-3d complex Sm(DMSO)(4)(H2O)(3)Cr(CN)(6) Was synthesized and characterized by single crystal structure analysis. It crystallizes in monodinic, space group P2(1) with a = 0.9367(2) nin, b = 1. 3917(3) nm, c = 1.1212 (2) nm P = 99.88(3)degrees and Z = 2. In this binuclear complex, Sin atom is eight coordinated and linked to the Or atom by a cyano bridge. The molecules packs to form 31) structure due to the hydrogen bonds among them. [K-3(18-C-6)(3)(H2O)(4)] Cr(CN)(6) . 3H(2)O (18-C-6 represents 18-crown-6-ether) that was synthesized as a byproduct in the preparation of a Gd-Cr complex is also structurally characterized. Crystal data: triclinic, space group P-1 with a = 1.0496(7) nm, b = 1.1567 (14) nm, c = 1.3530 (13) nm, alpha = 94.15 (9)degrees, beta = 96.04(8)degrees, gamma = 95.25(9)degrees and Z = 1. [K-3(18-C-6)(3)(H2O)(4)]Cr(CN)(6) . 3H(2)O consists of ionic [ K-3 (18-C-6)(3) (H(2)o)(4)](3+) and [Cr(CN)(6)](3-) pain, of which the [k(3)(18-C-6)(3)(H2O)(4)](3+) ion is a trinuclear duster connected by water, and K atoms are eight coordinated by eight oxygen atoms of one 18-C-6 and two water molecules.

• 出版日期2003-3
• 单位清华大学