Ladder-chain zinc coordination polymers based on adipic acid dihydrazide precursor: Synthesis and structural transformations
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- 作者：Piotr Zabierowski ; Marcin Oszajca ; Maciej Hodorowicz ; Dariusz Matoga ; dariusz.matoga@uj.edu.pl
- 关键词：Coordination polymer ; Zinc ; Hydrazide ; Chain ; Structural transformation
- 刊名：Polyhedron
- 出版年：2017
- 出版时间：10 January 2017
- 年：2017
- 卷：121
- 期：Complete
- 页码：25-32
- 全文大小：1857 K
- 卷排序：121
文摘
Two ladder-chain zinc coordination polymers were synthesized in aqueous or N,N-dimethylformamide (DMF) solution by use of adipic acid dihydrazide (adih) precursor: {[Zn2(H2aph)(pim)2]·4H2O}n (pim = pimelate, H2aph = adipic bis(2-picolinylidene)hydrazide) and {[Zn2(adih)3][NO3]4·2DMF}n. X-ray crystal structures of the polymers were determined and the lattice solvent removal was investigated. The structural, spectroscopic and thermogravimetric studies confirm reversible and irreversible transformation upon desolvation for the former and latter 1D chains, respectively. The details of the reversible dehydration and rehydration are revealed by powder X-ray structure elucidation of the desolvated phase and are corroborated by IR spectroscopy.