1.
J Org Chem
; 66(9): 3206-10, 2001 May 04.
Article
in English
| MEDLINE
| ID: mdl-11325290
2.
Science
; 279(5359): 2080-2, 1998 Mar 27.
Article
in English
| MEDLINE
| ID: mdl-9516102
ABSTRACT
A tetraphosphabenzene analog of the postulated anti-tricyclohexylene, a singlet biradical valence isomer of benzene, has been isolated. The tricyclic derivative features one-electron phosphorus-phosphorus bonds, which result from the pi*-pi* interaction between two diphosphirenyl radicals. Such one-electron bonds may play a wider role in phosphorus chemistry.