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A Heteroleptic ( E )‐1,2‐Diaryl‐1,2‐disilyldistannene without Donor Stabilization
Author(s) -
Stürmann Martin,
Saak Wolfgang,
Klinkhammer Karl W.,
Weidenbruch Manfred
Publication year - 1999
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/(sici)1521-3749(199912)625:12<1955::aid-zaac1955>3.0.co;2-j
Subject(s) - substituent , bent molecular geometry , chemistry , solid state , stereochemistry , medicinal chemistry , crystallography , organic chemistry
The reaction of the stannylene R 2 Sn : (R = 2‐ t Bu‐4,5,6‐Me 3 C 6 H) with R′ 2 Sn (R′ = Si(SiMe 3 ) 3 ) proceeds with substituent exchange to afford the heteroleptic stannylene RR′Sn : which, in the solid state, forms the distannene RR′Sn = SnRR′ ( 7 ). The X‐ray structure analysis of 7 reveals a trans ‐bent arrangement of the substituents with a large fold angle of 44.9° and an Sn–Sn double bond length of 279.14(4) pm.