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Lookup NU author(s): Emeritus Professor Bill CleggORCiD,
Dr Paul Waddell
This is the authors' accepted manuscript of an article that has been published in its final definitive form by American Chemical Society, 2020.
For re-use rights please refer to the publisher's terms and conditions.
Methylation of anti-B18H22 1 affords the first example of alkyl substitution of terminal hydrogen atoms on the fluorescent octadecaborane-22 molecule to give highly methylated 2,2'-Cl2-1,1',3,3',4,4',7,7',8,8',10,10'-Me12-anti-B18H8 2. This extensive chemical substitution leads to a swelling in the polyhedral volume of the 18-vertex boron atomic skeleton of the molecule, and an enhancement of the adsorption and solubility characteristics of this highly fluorescent molecule. We propose this ‘swollen polyhedral volume’ to be the result of a marked increase in the relative positivity of the ‘cluster-only total charge’ of the boron atomic skeleton caused by the combined electron-withdrawing capacity of the twelve methyl groups. The enhancement in absorption and solubility properties may be crucial in the design of new borane-based laser materials.
Author(s): Londesborough MGS, Lang K, Clegg W, Waddell PG, Bould J
Publication type: Article
Publication status: Published
Journal: Inorganic Chemistry
Online publication date: 11/02/2020
Acceptance date: 06/02/2020
Date deposited: 07/02/2020
ISSN (print): 0020-1669
ISSN (electronic): 1520-510X
Publisher: American Chemical Society
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