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Indexed by:期刊论文

Date of Publication:2014-06-01

Journal:ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE

Included Journals:SCIE

Volume:640

Issue:7,SI

Page Number:1443-1448

ISSN No.:0044-2313

Key Words:Borate; Crystal structure; Hydrogen bonds; pi center dot center dot center dot pi stacking interactions

Abstract:The mixed-ligand pentaborate, [Cu(C12N2H8)(2)(C2H3O2)][B5O6(OH)(4)]center dot C4H9NO (1), was synthesized and characterized by single-crystal X-ray diffraction, elemental analyses, powder X-ray diffraction, infrared spectroscopy, and thermogravimetric analysis. Two adjacent [B5O6(OH)(4)](-) polyborate anions are connected with each other by hydrogen bonds forming a novel zero-dimensional (0D) dimer {2[B5O6(OH)(4)](-)} which is further connected with [Cu(C12N2H8)(2)-(C2H3O2)](+) cations through hydrogen bonds to form a one-dimensional (1D) ribbon-like supramolecular structure with twenty-membered rings. The [Cu(C12N2H8)(2)(C2H3O2)](+) cations are extended through pi center dot center dot center dot pi stacking interactions between the 1,10-phenanthroline ligands forming a two-dimensional (2D) supramolecular network. The 1D supramolecular ribbons and the 2D supramolecular layers are further extended into a three-dimensional (3D) supramolecular framework through hydrogen-bonding interactions. Compound 1 is the first example of a borate where strong hydrogen bonds and pi center dot center dot center dot pi stacking interactions play important coordination roles in the formation of the 3D supramolecular framework.