Breitwieser K, Chen P. Crystal structure of a 1,1-dibutyl-1
H,3
H-naphtho[1,8-
cd][1,2,6]oxastannaborinin-3-ol.
Acta Crystallogr E Crystallogr Commun 2021;
77:180-183. [PMID:
33614150 PMCID:
PMC7869557 DOI:
10.1107/s2056989021000712]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 01/21/2021] [Indexed: 11/10/2022]
Abstract
The title oxastannaborininol compound, [Sn(C4H9)2(C10H7BO2)], has been synthesized and crystallized. While heterocycles containing a C-O-B group are common, heterocycles containing an E-O-B unit, where E is an element of the carbon group except for carbon, are rare. In fact, while heterocycles containing Si-O-B units are occasionally reported (although without crystal structures), there are no reports for the corresponding germanium, tin or lead analogues. Herein, the first synthesis and crystal structure of a heterocycle containing an Sn-O-B unit is described. The asymmetric unit contains one mol-ecule showing a notable disorder of the tin atom and the butyl groups. They occupy two sets of positions with site-occupancy factors of 0.295 (6) and 0.705 (6).
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