Modeling the direct activation of dihydrogen by a P2C2 cyclic biradical: formation of a cyclic bis(P-H lambda(5)-phosphorane).
The synthesis of a remarkable cyclic bis(P-H lambda(5)-phosphorane) is reported. A stable phosphorus-heterocyclic biradical, 1,3-diphosphacyclobutane-2,4-diyl, sequentially accepts negatively and positively charged hydrogen atoms to afford 2,4-diphospha-1,3-cyclobutadiene with a diylidic structure containing two P-H bonds.
Ito
Shigekazu
S
Department of Chemistry, Graduate School of Science, Tohoku University, Aoba, Sendai 980-8578, Japan. ito.s.ao@m.titech.ac.jp
Miura
Joji
J
Morita
Noboru
N
Yoshifuji
Masaaki
M
Arduengo
Anthony J
AJ