Reversible Pressure-Controlled Depolymerization of a Copper(II)-Containing Coordination Polymer.
Reversible Pressure-Controlled Depolymerization of a Copper(II)-Containing Coordination Polymer.
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DOI：
10.1002/chem.201703115
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发表时间：
2017-09
期刊：
影响因子：
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通讯作者：
J. Clegg;A. Brock;K. Jolliffe;L. Lindoy;S. Parsons;P. A. Tasker;Fraser J. White
中科院分区：
文献类型：
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作者：
J. Clegg;A. Brock;K. Jolliffe;L. Lindoy;S. Parsons;P. A. Tasker;Fraser J. White
A unique pressure-induced Cu-N bond breaking/bond forming reaction is reported. The variation of pressure on a single crystal of a one-dimensional copper- (II)-containing coordination polymer (Cu2 L2 (1-methylpiperazine)2 ]n , where H2 L is 1,1'-(1,3-phenylene)-bis(4,4-dimethylpentane-1,3-dione)), was monitored using single crystal X-ray diffraction with the aid of a diamond anvil cell. At a very low elevated pressure (≈0.05 GPa) a remarkable reversible phase change was observed. The phase change results in the depolymerization of the material through the cleavage and formation of axial Cu-N bonds as well as "ring flips" of individual axially coordinated 1-methylpiperazine ligands. Overall, the pressure-induced phase change is associated with a surprising (and non-intuitive) shift in structure-from a 1-dimensional coordination polymer to a discrete dinuclear complex.
