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• W2065583882 endingPage "994" @default.
• W2065583882 startingPage "988" @default.
• W2065583882 abstract "The alternation of the BN bonds in the central borazine ring of the overcrowded 1,2:3,4:5,6-tris(biphenylylene)borazine (2 a) and its tribromo derivative (2 g) is investigated by computational methods and compared with their experimentally obtained crystal structures. The calculations are performed with a meta-generalized-gradient-approximation (GGA) density functional (Tao–Perdew–Staroverov–Scuseria (TPSS)) without and with dispersion corrections, including Becke–Johnson damping, in conjunction with a polarized triple-ζ basis set. These data show a small bond-length alternation (BLA) of around 0.01 Å in 2 a and 2 g. This outcome is in good agreement with X-ray diffraction data for 2 g, but at variance with earlier X-ray diffraction measurements that gave a BLA of 0.06 Å for 2 a. A re-investigation of the crystal structure of 2 a reveals a positional disorder that precludes a discussion of the BN bond lengths. The synthesis of 2 g is the first example of an electrophilic aromatic substitution of an aryl borazine with elemental bromine. Successful bromination was also demonstrated for hexaphenylborazine." @default.
• W2065583882 created "2016-06-24" @default.
• W2065583882 creator A5015977477 @default.
• W2065583882 creator A5031787809 @default.
• W2065583882 creator A5034890963 @default.
• W2065583882 creator A5041824895 @default.
• W2065583882 date "2013-05-17" @default.
• W2065583882 modified "2023-09-29" @default.
• W2065583882 title "Is There BN Bond-Length Alternation in 1,2:3,4:5,6-Tris(biphenylylene)borazines?" @default.
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• W2065583882 doi "https://doi.org/10.1002/cplu.201300110" @default.
• W2065583882 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31986742" @default.
• W2065583882 hasPublicationYear "2013" @default.
• W2065583882 type Work @default.
• W2065583882 sameAs 2065583882 @default.

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