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Aminotroponiminate and Aminotroponate Complexes of Group 15 (P, As) Elements: Synthesis, X‐ray Diffraction Analysis and Reactivity
Author(s) -
Pop LucianCristian,
Castel Annie,
SilaghiDumitrescu Luminita,
Saffon Nathalie
Publication year - 2011
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201100131
Subject(s) - chemistry , cationic polymerization , reactivity (psychology) , denticity , isopropyl , derivative (finance) , chelation , metal , nuclear magnetic resonance spectroscopy , crystallography , stereochemistry , transition metal , medicinal chemistry , x ray crystallography , crystal structure , inorganic chemistry , polymer chemistry , diffraction , organic chemistry , catalysis , medicine , alternative medicine , physics , optics , pathology , financial economics , economics
New phosphenium and arsenium cations stabilized by bidentate monoanionic N ‐isopropyl‐2‐(isopropylamino)troponiminate or 2‐(isopropylamino)troponate units have been synthesized. These complexes were characterized by 31 P, 1 H and 13 C NMR spectroscopy and the molecular structures were determined by X‐ray crystallography. These data indicate the formation of N,N′‐ and N,O‐chelate derivatives with three‐coordinate Group 15 atoms included in planar heterobicycles. The reactivities of these cationic species were investigated. The phosphenium cations were found to be more reactive than their arsenium analogues, especially towards an o ‐quinone, with the formation of a phosphate ester derivative. Complexation reactions with [(THF)W(CO) 5 ] afforded the first aminotroponiminato hydroxyphosphenium cation stabilized by coordination to a transition metal.