Cage-delocalised syn-periplanar bishydrazine radical cations and dications- en route to sigma-bishomoaromatic 4N(2+) systems?

Authors
Exner, K Gescheidt, G Grossmann, B Heinze, J Bednarek, P Bally, T Prinzbach, H
Citation
K. Exner et al., Cage-delocalised syn-periplanar bishydrazine radical cations and dications- en route to sigma-bishomoaromatic 4N(2+) systems?, TETRAHEDR L, 41(49), 2000, pp. 9595-9600
Citations number
22
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
41
Issue
49
Year of publication
2000
Pages
9595 - 9600
Database
ISI
SICI code
0040-4039(200012)41:49<9595:CSBRCA>2.0.ZU;2-F
Abstract
One- and two-electron oxidation of a caged, proximate, syn-periplanar bishy drazine leads to highly persistent, 4N/(7)6e (radical) cations-with dominan t electron delocalisation along the cage bonds (CV, EPR, B3LYP). A NICS val ue of -20.6 is evidence for strong electron delocalisation in the caged dic ation. (C) 2000 Elsevier Science Ltd. All rights reserved.