Rare proximity enforced copper hydrogen interactions in copper(i)-chalcogenones

Mannarsamy, Maruthupandi and Prabusankar, Ganesan (2021) Rare proximity enforced copper hydrogen interactions in copper(i)-chalcogenones. New Journal of Chemistry, 45 (13). pp. 5933-5938. ISSN 1144-0546

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Copper(I) chalcogenones with rare Cu⋯H–C(sp3) hydrogen bonding interactions have been reported. The copper(I) bis(benzimidazole-2-chalcogenone) complexes [Cu(L1)4]+BF4− (1) and [Cu(L2)4]+BF4− (2) (L1 = bis(1-isopropyl-benzimidazole-2-selone)-3-ethyl; L2 = bis(1-isopropyl-benzimidazole-2-thione)-3-ethyl) have been synthesized and characterized. Both complexes possess distorted tetrahedral geometry with a semi-trans arrangement of the benzimidazole-chalcogenone ligands around the Cu(I) center. The structures of 1 and 2 reveal homoleptic coordination with the Cu(I) center with the (sp3)C–H groups of the ethylene linker directed towards the Cu(I) center to maximize the rare proximity-enforced intramolecular Cu⋯H–C interactions. The Cu⋯H–C interactions are found to have a hydrogen bonding nature in the crystalline state, as these interactions are absent in the solution state.

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IITH Creators:
IITH CreatorsORCiD
Mannarsamy, MaruthupandiUNSPECIFIED
Item Type: Article
Uncontrolled Keywords: Inorganic Chemistry, Copper, chalcogenones
Subjects: Chemistry > Inorganic chemistry
Chemistry > Organic chemistry
Divisions: Department of Chemistry
Depositing User: . LibTrainee 2021
Date Deposited: 21 Jun 2021 07:17
Last Modified: 21 Jun 2021 07:17
URI: http://raiith.iith.ac.in/id/eprint/7952
Publisher URL: http://doi.org/10.1039/d1nj00397f
OA policy: https://v2.sherpa.ac.uk/id/publication/18027
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