Selected Negative Linear Compressibilities in the Metal-Organic Framework of [Cu(4,4 '-bpy)(2)(H2O)(2)]center dot SiF6

Chen, Zhongwei1; Xu, Bin1; Li, Qian1; Meng, Yue2; Quan, Zewei1; Zou, Bo3

2020-02-03

10.1021/acs.inorgchem.9b02884

INORGANIC CHEMISTRY   影响因子和分区

0020-1669

1520-510X

Negative linear compressibility (NLC) is a rare high-pressure observation that lattice contraction is accompanied by the structural expansion along a specific direction. Generally, this counterintuitive phenomenon only derives from the intrinsic structural characteristics of materials and cannot be tuned by external perturbations. Searching for an effective method to control NLC effect is still a challenge in both chemical and material science. Here, we successfully discover and select the NLC behaviors in the metal-organic framework (MOF) of [Cu(4,4'-bpy)(2)(H2O)(2)]center dot SiF6 (Cu(bpy)center dot SiF) through controlling the pressure conditions therein. The NLC effect of Cu(bpy)center dot SiF originates from the wine-rack mechanism that quasi-square grids transfer to rhombic ones with the structural expansion along the diagonal direction at high pressure. Meanwhile, both of the pressure range and magnitude of the NLC responses are enlarged with optimized pressure conditions. This study not only presents the intriguing selected NLC behaviors of a MOF but also proves the effects of pressure conditions on NLC, which offers promising strategies for further design and applications of NLC materials.

SCI

英语

NI论文

第一 ; 通讯

DOE Office of Science[DE-AC02-06CH11357]

Chemistry

Chemistry, Inorganic & Nuclear

WOS:000511246600016

AMER CHEMICAL SOC

CHEMISTRY

Web of Science

1.Southern Univ Sci & Technol SUSTech, Acad Adv Interdisciplinary Studies, Dept Chem, Shenzhen 518055, Peoples R China
2.Argonne Natl Lab, HPCAT, Xray Sci Div, Argonne, IL 60439 USA
3.Jilin Univ, Coll Phys, State Key Lab Superhard Mat, Changchun 130012, Peoples R China

Chen, Zhongwei,Xu, Bin,Li, Qian,et al. Selected Negative Linear Compressibilities in the Metal-Organic Framework of [Cu(4,4 '-bpy)(2)(H2O)(2)]center dot SiF6[J]. INORGANIC CHEMISTRY,2020,59(3):1715-1722.

Chen, Zhongwei,Xu, Bin,Li, Qian,Meng, Yue,Quan, Zewei,&Zou, Bo.(2020).Selected Negative Linear Compressibilities in the Metal-Organic Framework of [Cu(4,4 '-bpy)(2)(H2O)(2)]center dot SiF6.INORGANIC CHEMISTRY,59(3),1715-1722.

Chen, Zhongwei,et al."Selected Negative Linear Compressibilities in the Metal-Organic Framework of [Cu(4,4 '-bpy)(2)(H2O)(2)]center dot SiF6".INORGANIC CHEMISTRY 59.3(2020):1715-1722.