Z. Naturforsch. 2013,
68b, 147 – 154
doi:10.5560/ZNB.2013-2325
Cu(II) and Zn(II) Complexes with an N- and O-Donor Ligand: Structural Characterization, Jahn-Teller Effect and Fluorescence
Hai-Wei
Kuai,
Xiao-Chun
Cheng and
Xiao-Hong
Zhu
Faculty of Life Science and Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China
Reprint requests to Dr. Hai-Wei Kuai. Fax: +86-517-83559044. E-mail:
hyitshy@126.com
Received December 9, 2012 / published online February 20, 2013
Cu(II) and Zn(II) salts react with 5-(1H-benzotriazol-1-ylmethyl)isophthalic acid (H2L) under hydrothermal conditions to yield two new complexes [Cu(L)(DMF)(H2O)] (1) and [Zn(L)] (2) [DMF = N,N-dimethylformamide], which have been characterized by single-crystal and powder X-ray diffraction, IR, elemental and thermogravimetric analyses. As a result, 1 shows a chain structure, further linked together by hydrogen bonding and π–π interactions to give rise to a 3D supramolecular framework. Complex 2 is a binodal (3,6)-connected 2D kgd network with (43)2(46.66.83) topology. The influential factors of synthetic strategies on
coordination modes of the ligand and structures of the resulting complexes are embodied in the study. Significantly, 1 has structural features consistent with the Jahn-Teller effect. Furthermore, the fluorescence properties of 2 were preliminarily investigated.
Key words: Cu(II) and Zn(II), Jahn-Teller Effect, Fluorescence Properties