A novel type of formation of zwitterionic compounds, containing two phosphorus atoms of opposite charge and different coordination number.
The oxidation of bis[bis(dialkylamino)phosphinyl]methane 1 with 5,5,5-trifluoro-4-(trifluoromethyl)penta-3-en-2-one 2 unexpectedly gave zwitterionic compound 7 which according to X-ray analysis contains two phosphorus atoms of opposite charge and different coordination number (lambda 4P(+); lambda 6P(-)) with a direct P-H bond at the hexacordinated phosphorus.
Shevchenko
Igor
I
Institute of Bioorganic Chemistry and Petrochemistry, Murmanskaya Street 1, 02094 Kiev, Ukraine. ishev@bpci.kiev.ua
Andrushko
Vasyl
V
Lork
Enno
E
Röschenthaler
Gerd-Volker
GV