Flexibility Control of Two-Dimensional Coordination Polymers by Crystal Morphology: Water Adsorption and Thermal Expansion

被引：11

作者：

Ohtani, Ryo ^{[1
]}

Yoshino, Haruka ^{[1
]}

Yanagisawa, Junichi ^{[1
]}

Ohtsu, Hiroyoshi ^{[2
,3
]}

Hashizume, Daisuke ^{[3
]}

Hijikata, Yuh ^{[4
]}

Pirillo, Jenny ^{[4
]}

Sadakiyo, Masaaki ^{[5
]}

Kato, Kenichi ^{[6
]}

Shudo, Yuta ^{[7
]}

Hayami, Shinya ^{[7
]}

Le Ouay, Benjamin ^{[1
]}

Ohba, Masaaki ^{[1
]}

机构：

[1] Kyushu Univ, Fac Sci, Dept Chem, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

[2] Tokyo Inst Technol, Sch Sci, Dept Chem, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528550, Japan

[3] RIKEN Ctr Emergent Matter Sci CEMS, 2-1 Hirosa Wa, Wako, Saitama 3510198, Japan

[4] Hokkaido Univ, Inst Chem React Design & Discovery WPI ICReDD, Kita Ku, Kita 21,Nishi 10, Sapporo, Hokkaido 0010021, Japan

[5] Tokyo Univ Sci, Fac Sci, Div 1, Dept Appl Chem,Shinjuku Ku, Kagurazaka 1-3, Tokyo 1628601, Japan

[6] RIKEN SPring 8 Ctr, 1-1-1 Kouto, Sayo, Hyogo 6795148, Japan

[7] Kumamoto Univ, Grad Sch Sci & Technol, Dept Chem, Chuo Ku, 2-39-1 Kurokami, Kumamoto 8608555, Japan

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2021年 / 27卷 / 72期

关键词：

crystal morphology; coordination polymers; metal-organic frameworks; thermal expansion; water adsorption; METAL-ORGANIC FRAMEWORK; NANOSHEETS; EXFOLIATION;

D O I：

10.1002/chem.202103404

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Layer flexibility in two-dimensional coordination polymers (2D-CPs) contributes to several functional materials as it results in anisotropic structural response to external stimuli. Chemical modification is a common technique for modifying layer structures. This study demonstrates that crystal morphology of a cyanide-bridged 2D-CP of type [Mn(salen)](2)[ReN(CN)(4)] (1) consisting of flexible undulating layers significantly impacts the layer configuration and assembly. Nanoplates of 1 showed an in-plane contraction of layers with a longer interlayer distance compared to the micrometer-sized rod-type particles. These effects by crystal morphology on the structure of the 2D-CP impacted the structural flexibility, resulting in dual-functional changes: the enhancement of the sensitivity of structural transformation to water adsorption and modification of anisotropic thermal expansion of 1. Moreover, the nanoplates incorporated new adsorption sites within the layers, resulting in the uptake of an additional water molecule compared to the micrometer-sized rods.

引用

页码：18135 / 18140

页数：6

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