Exploring C-H∙∙∙metalloaromatic interactions

Tan, Yee Seng * and Siti Nadiah Abdul Halim, and Otero-de-la-Roza, Alberto and Tiekink, Edward R. T. * (2017) Exploring C-H∙∙∙metalloaromatic interactions. In: Asian Conference on Coordination Chemistry (6th), 23 - 28 July 2017, Melbourne, Australia. (Unpublished)

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The C-H···metalloaromatic interaction is an of intermolecular contact which is less explored compared to the common secondary interactions such as hydrogen bonding and π··· π stacking. A series of 12 palladium(II) xanthate complexes was prepared by varying the xanthate side group from one carbon to six carbons, i.e. primary, secondary and tertiary hydrocarbons. All 12 complexes were crystallised and the intermolecular interactions present in each system were delineated. Among the series, 11 out of 12 palladium(II) xanthates showed at least one pair of the anticipated C-H···metalloaromatic π interaction, and up to a maximum of six pairs as identified in Pd[S2CO(neo-hexyl)]2. Further, the CH···metalloaromatic π interactions led to the formation of zero, one and even two dimensional motifs in the respective crystals. From a computational chemistry study performed on Pd[S2CO(n-propyl)]2, it is revealed that a C-H···metalloaromatic π interaction is of similar strength as intermolecular Pd···S secondary bonding which led to the dimerisation of palladium(II) xanthate in the condensed phase.

Item Type: Conference or Workshop Item (Paper)
Additional Information: First and 4th authors are with Research Centre for Crystalline Materials, School of Science and Technology, Sunway University; 2nd author is with the University of Malaya; 3rd author is with the National Research Council of Canada
Subjects: Q Science > QD Chemistry
Divisions: Sunway University > School of Engineering and Technology [formerly School of Science and Technology until 2020] > Research Centre for Crystalline Materials moved to SMLS wef 2021
Depositing User: Ms. Molly Chuah
Related URLs:
Date Deposited: 19 Oct 2017 08:36
Last Modified: 07 Oct 2020 10:10
URI: http://eprints.sunway.edu.my/id/eprint/606

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