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Dimeres 9‐(Difluorphosphino)anthracen: Synthese, Eigenschaften und Struktur
Author(s) -
Heuer Lutz,
Schomburg Dietmar,
Schmutzler Reinhard
Publication year - 1989
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19891220815
Subject(s) - chemistry , anthracene , dimer , crystal structure , stereochemistry , platinum , crystallography , photochemistry , catalysis , organic chemistry
Dimeric 9‐(Difluorophosphino)anthracene: Synthesis, Properties, and Structure 9‐(Difluorophosphino)anthracene ( 1 ) is readily accessible by the reaction of 9‐lithioanthracene with chlorodifluorophosphine. The compound forms a platinum( II ) complex 2 and dimerizes photochemically to give 3 for which, as the first difluorophosphine, an X‐ray crystal structure determination is performed. Dimer 3 constitutes one of six possible rotational isomers. A rotation of the PF 2 group is impeded by strong F‐H interactions at temperatures up to at least 105°C. The geometry of the difluorophosphine is comparable to that of trifluorophosphine.