A novel (3,4,10)-connected three-dimensional hydrogen-bonded supramolecular network containing a cyclic water hexamer

作者：Zhou, Yan; Zhao, Wen-Na; Han, Lei^*

来源：Acta Crystallographica Section C-Crystal Structure Communications, 2009, 65(6): O287-O289.

DOI：10.1107/S0108270109010658

• METAL-ORGANIC FRAMEWORK
• CLUSTERS (H2O)(N)
• CHAIN
• CONFORMATION
• COEXISTENCE
• COMPLEX
• TAPES
• ACID

The title compound, 4,4'-(1,1,1,3,3,3-hexafluoroisopropylidene)diphthalic acid hexahydrate, C(19)H(10)F(6)O(8) center dot 6H(2)O, crystallizes in the centrosymmetric space group Pbcn, with half of the diphthalic acid residue and three water molecules in the asymmetric unit. The organic molecule is located on a crystallographic twofold axis. In the solid, cyclic water hexamers in chair conformations have crystallographically imposed inversion symmetry. Strong O-H center dot center dot center dot O hydrogen bonds between the hexamers and organic molecules result in a unique three-dimensional supramolecular network [O center dot center dot center dot O = 2.554 (2)- 2.913 (2) angstrom]. This compound represents the first example of a (3,4,4,10)- connected four-nodal supramolecular topology with the Schlafli symbol (4(3).5.6.7)(2)(4(3).5(2).7)(2)(4(3))(2)(4(6).5(6).6(2).7(8).8(14).9(9)).

• 出版日期2009-6
• 单位浙江大学; 浙江大学宁波理工学院; 宁波大学