Ozturk, Turan, Povey, David C., Wallis, John D. (1997) Heterocyclic cations with delocalised pi-systems and short intramolecular sulfur ... Sulfur contacts: The structures of two derivatives of the 2-(1,3-dithiol-2-ylidenemethyl)-1,3-dithiolium cation. Phosphorus Sulfur and Silicon and the Related Elements, 122 . pp. 313-324. ISSN 0308-664X. (doi:10.1080/10426509708043520) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:18228)
| The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. | |
| Official URL: http://dx.doi.org/10.1080/10426509708043520 |
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| Additional URLs: |
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Abstract
The effective size of bonded divalent sulfur in S...S contacts is a function of the orientation of the groups, with the shortest contacts occurring when the groups are coplanar. A lower limit for the latter is indicated by the structures of the 2-(1,3-benzodithiol-2-ylidenemethyl)-1,3-benzodithiolium and 2-(1,3-dithiolan-2-ylidenemethyl)-1,3-dithiolanium cations, 2 and 3. These show almost mm symmetry with all four sulfur atoms involved in stabilisation of the positive charge. Short intramolecular sulfur...sulfur contact distances, 0.5-0.7 Angstrom within the sum of traditional van der Waals radii, and maximised by in-plane angular distortions, indicate a lower limit to the effective size of the bonded divalent sulfur atom of ca. 1.45 Angstrom.
| Item Type: | Article |
|---|---|
| DOI/Identification number: | 10.1080/10426509708043520 |
| Uncontrolled keywords: | 2-(1,3-benzodithiol-2-ylidenemethyl)-1,3-benzodithiolium 2-(1,3-dithiolan-2-ylidenemethyl)1,3-dithiolanium; atomic size; X-ray; van der Waals radius molecular structure |
| Subjects: |
Q Science Q Science > QD Chemistry |
| Institutional Unit: | Schools > School of Engineering, Mathematics and Physics > Physics and Astronomy |
| Former Institutional Unit: |
Divisions > Division of Natural Sciences > Physics and Astronomy
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| Depositing User: | M.A. Ziai |
| Date Deposited: | 22 Sep 2009 14:32 UTC |
| Last Modified: | 20 May 2025 09:33 UTC |
| Resource URI: | https://kar.kent.ac.uk/id/eprint/18228 (The current URI for this page, for reference purposes) |
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