TY  - JOUR
A1  - Kaim, Wolfgang
T1  - Zur Reaktion aromatischer Phosphanderivate mit Elektronen, III [1, 2]. Phosphan-Borane, -Alane und -Gallane
T1  - On the reaction of aromatic phosphane derivatives with electrons, III [1, 2]. Phosphane-boranes, -alanes, and -gallanes
T2  - Zeitschrift für Naturforschung, B
N2  - The 1:2 molecular complexes formed from 1,4-phenylenebis(dimethylphosphane) and boranes, trialkyl-aluminum and -gallium have been reduced by potassium in THF in the presence of a K+- complexing crown ether. The bis(borane) complex anion radicals proved to be quite persistent, whereas corresponding aluminum radical complexes could only be observed below 240 K. The bis(trimethylgallium) complex gave gallium metal on reduction with potassium. An ESR spectroscopic comparison with the anion radicals of the free ligand, of corresponding chalcogenides, imines and phosphonium salts demonstrates negligible effects of P-complexation on the π spin distribution but high sensitivity of the 31P coupling constant towards coordination of electrophiles at the basic P(III) centers
KW  - Molecular Complexes
KW  - Reduction
KW  - Anion Radicals
KW  - ESR Spectra
Y1  - 2014
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/71986
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-719862
SN  - 1865-7117
SN  - 0932-0776
VL  - 40.1985
IS  - 1
SP  - 61
EP  - 66
PB  - Verlag der Zeitschrift für Naturforschung
CY  - Tübingen
ER  -