A main-group metal carbonyl complex: Structure and isomerization to a carbene-stabilized tin atom

• 成果类型: Article
• 署名作者: Dietz, Maximilian; Protchenko, Andrey V.; Crumpton, Agamemnon E.; Karwasara, Surendar; Roy, Matthew M. D.; Stewart-Moreno, James; Timmel, Christiane; Aldridge, Simon
• 署名单位: University of Oxford
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-12769
• DOI: 10.1126/science.ady0247
• 发表日期: 2025-09-11
• 页码: 1118-1121
• 关键词: generalized gradient approximation; basis-sets; nonlocal correlation; density functionals; boryl complexes; co; reactivity; chemistry; hydrocarbons; EXISTENCE

摘要

In contrast to transition elements, s- and p-block metal compounds that coordinate carbon monoxide (CO) under near-ambient conditions are elusive. Here, we report an isolable, crystalline main-group metal carbonyl complex and its isomerization to a carbene-stabilized metal atom. The stannylene (Boryl)2Sn [where Boryl is B(NDippCH)2] coordinates CO reversibly, affording an isolable adduct below 0 degrees C, which was characterized by x-ray crystallography. This complex rearranges at temperatures above 0 degrees C to generate the stannavinylidene, (Boryl)(OBoryl)C=Sn, that is, a complex between the triplet carbene (Boryl)(OBoryl)C and monatomic Sn(0) in its electronic ground state.