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Crystal Sponge Behavior in a Two-Dimensional Rare-Earth Hybrid Coordinate Polymer
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2023-08-15 , DOI: 10.1021/acs.inorgchem.3c01884 Ze-Jiang Xu 1 , Na Wang 1 , Wang Luo 1 , Hua-Kai Li 1 , Yan Feng 1 , Chao Shi 1 , Heng-Yun Ye 1 , Le-Ping Miao 1
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2023-08-15 , DOI: 10.1021/acs.inorgchem.3c01884 Ze-Jiang Xu 1 , Na Wang 1 , Wang Luo 1 , Hua-Kai Li 1 , Yan Feng 1 , Chao Shi 1 , Heng-Yun Ye 1 , Le-Ping Miao 1
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Stimuli-responsive multifunctional materials (SRMMs) have attracted tremendous attention due to their dynamic responses to external stimuli. However, it remains challenging to simultaneously achieve solvent-induced single-crystal to single-crystal (SCSC) transformation and structural phase transition after desolvation. Here, we report a two-dimensional (2D) rare-earth organic-inorganic hybrid coordinate polymer [(CH3)3NCH2Cl]2[Eu·H2O]2[CH2(SO3)2]4·2H2O (1) that exhibits a reversible SCSC transformation by changing to 2 ([(CH3)3NCH2Cl][Eu·H2O][CH2(SO3)2]2). Impressively, the SCSC transformation process couples with large changes in quantum efficiency dropped from 33.68% of 1 to 20.07% that of 2. Furthermore, polymer 2 shows an isomorphic structural phase transition associated with switching dielectric. Notably, the distance of the 2D layers shows reversible change during the two successive transition processes displaying a crystal sponge behavior. This work reveals the potential of rare-earth 2D hybrid coordination polymers in the design of multifunctional responsive materials and opens a new prospect to explore the construction of novel SRMMs.
中文翻译：
二维稀土杂化配位聚合物中的晶体海绵行为
刺激响应多功能材料（SRMM）由于其对外部刺激的动态响应而引起了极大的关注。然而，去溶剂化后同时实现溶剂诱导的单晶到单晶（SCSC）转变和结构相变仍然具有挑战性。在此，我们报道了一种二维（2D）稀土有机-无机杂化配位聚合物[(CH 3 ) 3 NCH 2 Cl] 2 [Eu·H 2 O] 2 [CH 2 (SO 3 ) 2 ] 4 · 2H 2 O ( 1 ) 通过转变为2 ([(CH 3 ) 3 NCH 2 Cl][Eu·H 2 O][CH 2 (SO 3 ) 2 ] 2 )而表现出可逆的 SCSC 转化。令人印象深刻的是，SCSC 转变过程伴随着量子效率的巨大变化，从1的 33.68% 下降到2的 20.07% 。此外，聚合物2表现出与切换电介质相关的同构结构相变。值得注意的是，二维层的距离在两个连续的过渡过程中显示出可逆的变化，表现出晶体海绵行为。这项工作揭示了稀土二维杂化配位聚合物在多功能响应材料设计中的潜力，并为探索新型SRMM的构建开辟了新的前景。
更新日期：2023-08-15
中文翻译：
二维稀土杂化配位聚合物中的晶体海绵行为
刺激响应多功能材料（SRMM）由于其对外部刺激的动态响应而引起了极大的关注。然而，去溶剂化后同时实现溶剂诱导的单晶到单晶（SCSC）转变和结构相变仍然具有挑战性。在此，我们报道了一种二维（2D）稀土有机-无机杂化配位聚合物[(CH 3 ) 3 NCH 2 Cl] 2 [Eu·H 2 O] 2 [CH 2 (SO 3 ) 2 ] 4 · 2H 2 O ( 1 ) 通过转变为2 ([(CH 3 ) 3 NCH 2 Cl][Eu·H 2 O][CH 2 (SO 3 ) 2 ] 2 )而表现出可逆的 SCSC 转化。令人印象深刻的是，SCSC 转变过程伴随着量子效率的巨大变化，从1的 33.68% 下降到2的 20.07% 。此外，聚合物2表现出与切换电介质相关的同构结构相变。值得注意的是，二维层的距离在两个连续的过渡过程中显示出可逆的变化，表现出晶体海绵行为。这项工作揭示了稀土二维杂化配位聚合物在多功能响应材料设计中的潜力，并为探索新型SRMM的构建开辟了新的前景。
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