Issue 9, 2004
From the journal:

Organic & Biomolecular Chemistry

Which π-clamped conjugated monocycles exhibit ring currents?

Remco W. A. Havenith,a   Leonardus W. Jenneskens,*b   Patrick W. Fowler*c  and  Alessandro Soncinic  

* Corresponding authors

a Department of Chemistry, University of Warwick, Coventry, UK

b Debye Institute, Department of Physical Organic Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
E-mail: jennesk@chem.uu.nl
Fax: +31-30-2534533
Tel: +31-30-2533128

c Department of Chemistry, University of Exeter, Stocker Road, Exeter, UK
E-mail: P.W.Fowler@exeter.ac.uk
Fax: +44-1392-263434
Tel: +44-1392-263466

Abstract

Quenching/survival of ring currents in π-clamped conjugated monocycles is controlled by the match or mismatch in parity between the frontier orbitals of the central π-conjugated 4n+2/4n monocycle and those of the clamps. Changes in ring current are not primarily caused by bond alternation or ‘Mills–Nixon’ effects; current and geometry changes on clamping are both consequences of electronic structure.

Graphical abstract: Which π-clamped conjugated monocycles exhibit ring currents?

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Article information

DOI
https://doi.org/10.1039/B401125B
Article type
Paper
Submitted
26 Jan 2004
Accepted
10 Mar 2004
First published
01 Apr 2004

Org. Biomol. Chem., 2004,2, 1281-1286

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Which π-clamped conjugated monocycles exhibit ring currents?

R. W. A. Havenith, L. W. Jenneskens, P. W. Fowler and A. Soncini, Org. Biomol. Chem., 2004, 2, 1281 DOI: 10.1039/B401125B

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