Copper(i) complexes: intramolecular and intermolecular arene-c– h···π(quasi-chelate ring) interactions
A series of bis(phosphane)copper(I) thiocarbamates, namely (Ph3P)2Cu[ROC(=S)N(H)Ph]Cl, were prepared in response to the promising biological properties exhibited by the related phosphanegold(I) analogues. The presence of an intramolecular N-H···Cl hydrogen bond in the title compounds, was found l...
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| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2017
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| Subjects: | |
| Online Access: | http://eprints.sunway.edu.my/607/1/YEO%20CI%20-%20COPPER%20COMPLEXES%20INTRAMOLECULAR%20AND%20INTERMOLECULAR.pdf http://eprints.sunway.edu.my/607/ |
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| Summary: | A series of bis(phosphane)copper(I) thiocarbamates, namely
(Ph3P)2Cu[ROC(=S)N(H)Ph]Cl, were prepared in response to the promising biological
properties exhibited by the related phosphanegold(I) analogues. The presence of an
intramolecular N-H···Cl hydrogen bond in the title compounds, was found leading to the
formation of a six-membered quasi-chelate ring, {CuCl···HNCS}. Following ring closure,
unanticipated C–H···π(quasi-chelate ring) interactions were evidenced in one-third of
related copper(I) complexes capable of forming similar quasi-chelate rings. Computational
chemistry calculations revealed that these interactions when occurring intramolecularly,
afforded energies of attraction approximating 3.5 kcal mol-1. In a subsequent review of
analogous copper(I) complexes, intermolecular C–H…π(quasi-chelate) interactions
imparted stabilisation to the crystal structures, leading to zero-, one-, two- and even threedimensional
architectures. |
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