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An Adduct of Sulfur Monoxide to a Frustrated Sn/P Lewis Pair.

ABSTRACT: The geminal frustrated Lewis pair (F5 C2 )3 SnCH2 P(tBu)2 (1) reacted with N-sulfinylaniline PhNSO to afford the first sulfur monoxide adduct of a main group metal, (F5 C2 )3 SnCH2 P(tBu)2 ?SO (2), which contains a SnCPSO ring. The second product is a phenylnitrene adduct of 1. The surprising stability of 2 was compared with the stabilities of the so far inaccessible O2 and S2 adducts of 1. Attempts to prepare these from 1 and the elemental chalcogens (O2 , S8 , Se? , Te? ) led to four-membered SnCPE ring systems. Quantum-chemical investigations of 2 demonstrate the bond polarity of the SO unit to stabilize 2.

SUBMITTER: Holtkamp P

PROVIDER: S-EPMC7540458 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature

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An Adduct of Sulfur Monoxide to a Frustrated Sn/P Lewis Pair.

Holtkamp Philipp P Glodde Timo T Poier Dario D Neumann Beate B Stammler Hans-Georg HG Mitzel Norbert W NW

Angewandte Chemie (International ed. in English) 20200806 40

The geminal frustrated Lewis pair (F5 C2 )3 SnCH2 P(tBu)2 (1) reacted with N-sulfinylaniline PhNSO to afford the first sulfur monoxide adduct of a main group metal, (F5 C2 )3 SnCH2 P(tBu)2 ⋅SO (2), which contains a SnCPSO ring. The second product is a phenylnitrene adduct of 1. The surprising stability of 2 was compared with the stabilities of the so far inaccessible O2 and S< ...[more]

PMID: 32558235

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