Thomas ID, Kocher KR, Viehweg JA, Pike RD, Bebout DC. Crystal structure and Hirshfeld surface analysis of
cyclo-tetra-bromido-1κ
2Br,3κ
2Br-tetra-kis-(μ
2-2-{[(pyridin-2-yl)meth-yl]amino}-ethane-1-thiol-ato-κ
3N,
S:
S)tetra-mercury(II).
Acta Crystallogr E Crystallogr Commun 2023;
79:952-957. [PMID:
37817964 PMCID:
PMC10561197 DOI:
10.1107/s205698902300823x]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 09/19/2023] [Indexed: 10/12/2023]
Abstract
The macrometallacyclic title compound, [Hg4Br4(C8H11N2S)4] or [((HgL 2)(HgBr2))2] (1) where HL = 2-{[(pyridin-2-yl)meth-yl]amino}-ethane-1-thiol, was prepared and structurally characterized. The Hg2+ complex crystallizes in the P21/c space group. The centrosymmetric Hg4S4 metallacycle is constructed from metal ions with alternating distorted tetra-hedral Br2S2 and distorted seesaw N2S2 primary coordination environments with pendant pyridyl groups. The backfolded extended chair metallacycle conformation suggests inter-actions between each of the bis-chelated mercury atoms and Br atoms lying above and below the central Hg2S4 plane. Supra-molecular inter-actions in 1 include a fourfold aryl embrace and potential hydrogen bonds with bromine as the acceptor. Hirshfeld surface analysis indicates that H⋯H (51.7%), Br⋯H/H⋯Br (23.0%) and C⋯H/H⋯C (9.5%) inter-actions are dominant.
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