Syntéza a struktura donorem stabilizovaných difluorofosfátofluorofosforanů.

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Title in English Synthesis and structure of donor-stabilized difluorophosphatofluorophosphoranes.
Authors

ROVNANÍK Pavel TARABA Jan ČERNÍK Miloš

Year of publication 2004
Type Article in Proceedings
Conference Sborník 56. sjezdu chemických společností, Chemické Listy 98 (8)
MU Faculty or unit

Faculty of Science

Citation
Field Inorganic chemistry
Keywords Difluorophosphatofluorophosphoranes; donor-stabilized molecules; stereoisomers
Description The reaction of (py)PF5 with diphosphoryl tetrafluoride results in the elimination of POF3 and formation of cis- and trans-(py)PF4OPOF2 as the main products. The cis- isomer could be isolated and its molecular structure was confirmed by single-crystal X-ray diffraction. Both adducts can be considered to be donor-stabilized difluorophosphatotetrafluorophosphorane that does not exist as a "free" noncoordinated species. Similar reaction with (Me3N)PF5 produces only trans-isomer, most likely due to steric more demanding trimethylamine molecule.
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