A main-group metal carbonyl complex: Structure and isomerization to a carbene-stabilized tin atom.
basic_science · Level V
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- Record sourced from PubMed, PMID 40934312.
- Also identified by DOI 10.1126/science.ady0247.
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Abstract
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)<sub>2</sub>Sn [where Boryl is B(NDippCH)<sub>2</sub>] coordinates CO reversibly, affording an isolable adduct below 0°C, which was characterized by x-ray crystallography. This complex rearranges at temperatures above 0°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.