Coordination Behaviors and Supramolecular Interactions of 2-(2′-Pyridyl) Imidazoline: Crystal Structure of Its Two Cu(II) Complexes

• DOI: 10.1007/s10904-013-0009-5
• Publication Date: 2013-12-03T11:04:45Z
• Authors: Xinmiao Wang; Chunyan Ren; Wentao Zhang; Xiang Zhou; Yang Liu; Ping Liu; Yaoyu Wang
• Keywords: Thermogravimetric analysis; Oxalic Acid; Coordination geometry; Carboxylate; Coordination polymer

Two new copper coordination complexes, [Cu(PI)(OX)(H2O)]·H2O (1) and [Cu(PI)(fum)(H2O)]·H2O (2) [PI = 2-(2′-pyridyl) imidazoline, OX2− = dianion of oxalic acid and fum2− = dianion of fumaric acid], were synthesized by interface diffusion method based on Cu(II) ions, PI ligands and aliphatic dicarboxylic acids. Complex 1 is a mononuclear complex which spreads into a 3D (4,9)-connected supramolecular network via hydrogen bond interactions, while complex 2 features a 1D zigzag chain with two different orientations. These two compounds are characterized by single crystal X-ray diffraction, powder X-ray diffraction, elemental analyses, infrared spectra, and thermogravimetric analyses.