Syntheses, Structures, and Properties of Two Zinc(II) Metal-Organic Frameworks based on Biphenyl-2,3,3′,5′-tetracarboxylic Acid and N-Donor Ancillary Ligands

• Published in: Zeitschrift für anorganische und allgemeine Chemie (1950) Vol. 641; no. 6; pp. 1114 - 1118
• Main Authors: Li, Rong-Fang, Gu, Yan-Xue, Liu, Xin-Fang, Feng, Xun, Ma, Lu-Fang
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 01.05.2015; WILEY‐VCH Verlag; Wiley Subscription Services, Inc
• Subjects: 5′-tetracarboxylic acid; Biphenyl-2; Biphenyl‐2,3,3′,5′‐tetracarboxylic acid; Zinc; Photoluminescence; Photoluminescence; Zinc
• ISSN: 0044-2313; 1521-3749
• DOI: 10.1002/zaac.201400483

Hydrothermal reactions of biphenyl‐2,3,3′,5′‐tetracarboxylic acid (H4bptc) with zinc salts in the presence of 1,4‐bis(2‐pyridylmethyl)piperazin (bpmp) and 4,4‐dipyridyl (dpy) afforded the coordination polymers {[Zn2(bptc)(bpmp)]·3H2O}n (1) and {[Zn(H2bptc)(dpy)]·3H2O}n (2). Their structures were determined by single‐crystal X‐ray diffraction analysis and further characterized by elemental analysis, IR spectroscopy, and TG analyses. Complex 1 displays an unusual three‐dimensional (3D) supramolecular motif generated by hydrogen bonding interactions between two single‐layered 2D networks. Complex 2 represents a 2D layer structure, and such layers are further united together into three‐dimensional supramolecular structure through intricate hydrogen bonding. In addition, luminescence properties of complexes 1 and 2 were also investigated.