In:
Angewandte Chemie International Edition, Wiley, Vol. 61, No. 39 ( 2022-09-26)
Abstract:
Ditetrelenes R 2 E=ER 2 (E=Si, Ge, Sn, Pb) substituted by multiple N/P/O/S‐donor groups are extremely rare due to their propensity to disaggregate into their tetrylene monomers R 2 E. We report the synthesis of the first fully phosphanyl‐substituted digermene {(Mes) 2 P} 2 Ge=Ge{P(Mes) 2 } 2 ( 3 , Mes=2,4,6‐Me 3 C 6 H 2 ), which adopts a highly unusual structure in the solid state, that is both strongly trans ‐bent and highly twisted. Variable‐temperature 31 P{ 1 H} NMR spectroscopy suggests that 3 persists in solution, but is subject to a dynamic equilibrium between two conformations, which have different geometries about the Ge=Ge bond (twisted/non‐twisted) due to a difference in the nature of their π‐stacking interactions. Compound 3 undergoes unprecedented, spontaneous decomposition in solution to give a unique Ge I cluster {(Mes) 2 P} 4 Ge 4 ⋅5 CyMe ( 7 ).
Type of Medium:
Online Resource
ISSN:
1433-7851
,
1521-3773
DOI:
10.1002/anie.202208851
Language:
English
Publisher:
Wiley
Publication Date:
2022
detail.hit.zdb_id:
2011836-3
detail.hit.zdb_id:
123227-7
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