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An Adduct of Sulfur Monoxide to a Frustrated Sn/P Lewis Pair
Author(s) -
Holtkamp Philipp,
Glodde Timo,
Poier Dario,
Neumann Beate,
Stammler HansGeorg,
Mitzel Norbert W.
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202007653
Subject(s) - adduct , chalcogen , chemistry , frustrated lewis pair , sulfur , geminal , monoxide , carbon monoxide , ring (chemistry) , metal , lewis acids and bases , medicinal chemistry , crystallography , stereochemistry , inorganic chemistry , organic chemistry , catalysis
The geminal frustrated Lewis pair (F 5 C 2 ) 3 SnCH 2 P(tBu) 2 ( 1 ) reacted with N‐sulfinylaniline PhNSO to afford the first sulfur monoxide adduct of a main group metal, (F 5 C 2 ) 3 SnCH 2 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 O 2 and S 2 adducts of 1 . Attempts to prepare these from 1 and the elemental chalcogens (O 2 , S 8 , 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 .