期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 23, 期 51, 页码 12480-12483出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201703115
关键词
coordination polymer; copper; high-pressure chemistry; stimuli responsive; X-ray structure
资金
- Australian Research Council
- University of Edinburgh
- EPSRC
- Infineum Ltd.
- Joan R. Clark Scholarship, University of Sydney
- EPSRC [EP/G015333/1, EP/K033646/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G015333/1, EP/K033646/1] Funding Source: researchfish
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 (Cu2L2(1-methylpiperazine)(2)](n), where H2L 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 (approximate to 0.05GPa) 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.
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