4.7 Article

Water vapour induced reversible switching between a 1-D coordination polymer and a 0-D aqua complex

期刊

CHEMICAL COMMUNICATIONS
卷 58, 期 59, 页码 8218-8221

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cc02777a

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资金

  1. National Natural Science Foundation of China [22161052]
  2. Science Foundation Ireland (SFI) [13/RP/B2549, 16/IA/4624]
  3. Science Foundation Ireland [21/PATH-S/9454]

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This article discusses the structural transformation process of a 1-D coordination polymer [Zn(3-tba)(2)], showing the formation of a nonporous form and a dimeric complex under specific conditions. Single-crystal-to-single-crystal phase changes can be achieved through heating and exposure to DMA under specific conditions.
[Zn(3-tba)(2)], 1, a 1-D coordination polymer synthesised as 1 DMA, 1 alpha, transformed to a nonporous form, 1 beta, upon activation. 1 beta underwent further transformation to the dimeric complex [Zn(3-tba)(2)(H2O)(2)]( )2, above 40% RH. The reverse transformations, 2 to 1 beta and 1 beta to 1 alpha, were accomplished by heating and exposure to DMA, respectively, and were single-crystal-to-single-crystal phase changes. Single crystal X-ray diffraction revealed that the second transformation resulted from Zn-carboxylate bond breakage and concomitant coordination of water molecules. Other solvent molecules did not induce a phase change.

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