Isomorphic substitution in molecular crystals and geometry of hypervalent tellurium: Comments inspired by a case study of RMeTeI2 and [RMe2Te]+I- (R = Ph, Fc)

Yury V. Torubaev, Fedor M. Dolgushin, Ivan V. Skabitsky, Alexandra E. Popova

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The crystal structures of PhMeTeI2 (1), FcMeTeI2 (2) and [FcMe2Te]+I- (3), which are the products of iodomethylation of R2Te2 (R = Ph, ferrocenyl (Fc)) by MeI, are reported. Analysis of secondary interactions and packing patterns in 1-3 revealed Te⋯πPh chalcogen bonding in 1, unusual structural parallels between 2 and 3, and unprecedented isomorphic substitution in the crystals of 3 with an admixture of Te-I ionized molecules 2 [FcMeTeI+]I-. In summary, we are discussing the 3c-4e bonding model as a general, seamless scheme for the geometry and electronic structure of hypervalent tellurium atom coordination in both the isolated molecules and crystals, which overcomes the confusing division between the molecular and supramolecular geometry.

Original languageEnglish
Pages (from-to)12225-12232
Number of pages8
JournalNew Journal of Chemistry
Volume43
Issue number31
DOIs
StatePublished - 1 Jan 2019
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Materials Chemistry

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