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Notizen/Notes Synthese und Struktur von 2‐Phosphonioallen‐Komplexen
Author(s) -
Metternich HansJürgen,
Niecke Edgar,
Nixon John F.,
Bartsch Rainer,
Hitchcock Peter B.,
Meidine Mohamed F.
Publication year - 1991
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.19911240914
Subject(s) - chemistry , phosphorane , methylene , stereochemistry , crystal structure , nuclear magnetic resonance spectroscopy , olefin fiber , medicinal chemistry , crystallography , catalysis , organic chemistry
Synthesis and Structure of 2‐Phosphonioallene Complexes The reaction of the chlorobis(methylene)phosphorane 1 with reactive olefin complexes of nickel and platinium affords the 2‐phosphonioallene complexes 4b and 6a , b . The structure of this new class of three‐electron donor ligands, involving a lowcoordinated phosphorus (V) cation, has been elucidated by NMR spectroscopy and a single‐crystal X‐ray study of 6a . The reaction proceeds via a metallobis(methylene)phosphorane intermediate, which could be isolated in the case of the (Et 3 P) 2 Pt complex 3a .