PREPARATION AND REACTIONS OF BINUCLEAR PLATINUM(II) COMPLEXES - SINGLE-CRYSTAL X-RAY-DIFFRACTION STUDY OF A TETRAKIS(DIFLUOROPHOSPHONATO)PALLADATE(II) COMPLEX
Hj. Plinta et al., PREPARATION AND REACTIONS OF BINUCLEAR PLATINUM(II) COMPLEXES - SINGLE-CRYSTAL X-RAY-DIFFRACTION STUDY OF A TETRAKIS(DIFLUOROPHOSPHONATO)PALLADATE(II) COMPLEX, Zeitschrift fur Naturforschung. B, A journal of chemical sciences, 48(6), 1993, pp. 737-746
o-Methylbenzyldifluorophosphite 2 was obtained by the reaction of o-me
thylbenzyl-trimethyl silyl ether 1 with chlorodifluorophosphine PF2Cl.
The reaction of 2 with the palladium(II) complex 3 led to the tetraki
s(difluorophosphonato)palladate(II) complex 7. The X-ray structure ana
lysis of 7 confirmed the nearly exact square planar structure at the m
etal atom of the tetrakis(difluorophosphonato)palladate(II) dianion. M
inimal deviations from the ideal geometry at palladium and phosphorus
are mainly the result of thermal motion or disorder phenomena in the c
rystal. In the reaction of the platinum(II) complex 8 with chlorodiflu
orophosphine the binuclear etrakis(chlorodifluorophosphine)platinum(II
)chloro complex 9 was obtained. In acetonitrile, 9 was cleaved to form
the mononuclear complex 10. Similar results were obtained in the oxid
ative addition reactions of the platinum(0) complex 11 with sulfuryl c
hloride fluoride, 12, sulfuryl fluoride, 13, and phosphorus pentafluor
ide. akis(triphenylphosphine)-mu-dichlorodiplatinum(II) hexafluorophos
phate 14 was isolated. In acetonitrile the mononuclear onitrile-bis(tr
iphenylphosphine)chloroplatinum(II) hexafluorophosphate complex 15 was
isolated.