Phosphanyl‐Substituted Tetrylenes and Ditetrelenes: Impact of Steric Bulk on Tetrylene/Ditetrelene Stability
Year: 2025
Type: article
Abstract: Phosphorus‐substituted tetrylenes and ditetrelenes remain something of a rarity. The reaction between SnCl2 and two equivalents of (Dep2P)Li at low temperature gave the bis(phosphanyl)stannylene {(Dep)2P}2Sn (4Sn), although this compound decomposes in solution at room temperature (Dep = 2,6‐Et2C6H3). Compound 4Sn is monomeric in the solid state and exhibits significant Sn…Ar contacts, which mitigate the electron deficiency of the Sn center. In contrast, the reaction between GeCl2(1,4‐dioxane) and two equivalents of (Tep2P)Li gave the digermene (Tep2P)2GeGe(PTep2)2 (5Ge; Tep = 2,4,6‐Et3C6H2). Compound 5Ge crystallizes as a strongly trans‐bent and twisted digermene; however, in solution, variable‐temperature 31P{1H} and 1H diffusion‐ordered NMR spectroscopy reveal a dynamic equilibrium between the germylene and digermene forms of 5Ge.
Authors: Ahmed Hadadi, Mo Liu, Peter Evans, Casey M. Dixon, Corinne Wills, Paul G. Waddell, Keith Izod
Language: English
Subfield: Inorganic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,050
OpenAlex ID: W4409961768