Three Novel Polymeric Frameworks Assembled from CdII, CoII, and MnII with the Mixed Organic Ligands 3,4-Pyridinedicarboxylate, 1,3-Bis(4-pyridyl)propane, or 1,2-Bis(4-pyridyl)ethane
✍ Scribed by Zhi-Yong Fu; Sheng-Min Hu; Jing-Cao Dai; Jian-Jun Zhang; Xin-Tao Wu
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 229 KB
- Volume
- 2003
- Category
- Article
- ISSN
- 1434-1948
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✦ Synopsis
Abstract
Hydrothermal reactions of Cd^II^, Co^II^, and Mn^II^ with the mixed ligands 3,4‐pyridinedicarboxylate (pydc), 1,3‐bis(4‐pyridyl)propane (bpp), or 1,2‐bis(4‐pyridyl)ethane (bpe) gave crystals of {[Cd(pydc)(bpp)]·0.5H~2~O}~n~ (1), {[Co(pydc)(H~2~O)(bpe)~0.5~]·0.5H~2~O}~n~ (2), and {[Mn(pydc)(H~2~O)(bpe)~0.5~]· 0.5H~2~O}~n~ (3), respectively. Single‐crystal X‐ray analyses reveal that these are all three‐dimensional non‐interpenetrating coordination polymers. Their structures alter markedly with the conformation and the function of the ligands. In 1, the 3,4‐pyridinedicarboxylate acted as a three‐connector, a coordination topology of the type (3,5) [containing 3 and 5 connected centers] being generated through self‐assembly, while in 2 and 3, with the help of the four‐connector 3,4‐pyridinedicarboxylate and the terminal ligand water molecule, another three‐dimensional framework with a coordination topology of the type (4, 5) was obtained. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)