期刊
DALTON TRANSACTIONS
卷 46, 期 22, 页码 7120-7140出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7dt00873b
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资金
- Ministry of Education Singapore through National University of Singapore [Tier1-R-143-000-604-112, R-143-000-678-112]
This perspective focusses on the solid-state reactivity and structural transformation driven by photochemical methods in discrete metal complexes, organometallic compounds, metallo-macrocycles and cages. Changes in the metal-metal bond distances, racemization of chiral centres, fusion of cages, formation of coordination polymers, expected [2 + 2] and [4 + 4] cycloaddition products, unusual phenyl-olefin dimerization, and linkage isomerization of SO2, NO & NO2 ligands cause the structural transformations. Of these, [2 + 2] photo-cycloaddition reactions have been widely studied and the photoreactions are made possible by various supramolecular interactions including hydrogen bonds, metallophilic, pi center dot center dot center dot pi and C-H center dot center dot center dot pi interactions, ligand design and metallic clips to bring the reactive functional groups closely into correct orientation close to the transition state. These photoreactions are often accompanied by crystal bending, mechanical motion, and changes in the magnetic and photoluminescence properties. In several cases, the single crystals have been preserved at the end of the reactions, which are known as single-crystal-to-single-crystal (SCSC) reactions.
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