TY - JOUR
T1 - Spirocyclische, Ψ-tbp-konfigurierte Phosphan-Germylenkomplexe [XC(PMe2)2]2Ge (X = PMe2, SiMe3)
T2 - Darstellung, Struktur und Moleküldynamik
AU - Karsch, Hans H.
AU - Deubelly, Brigitte
AU - Hanika, Gerhard
AU - Riede, Jürgen
AU - Müller, Gerhard
PY - 1988/4/19
Y1 - 1988/4/19
N2 - The preparation and spectroscopic properties of the compounds [XC(PMe2)2]2Ge (X = PMe2. SiMe3) are reported and compared with those of the tin homologues. The dynamic behavior of the germanium compounds in solution is completely different from that of the tin complexes. An X-ray structure determination of [C(PMe2)3]2Ge (1a) reveals that it has an overall molecular structure which is very similar to that of the tin complex. The central atom is four-coordinated by P atoms in a distorted ψ-tbp configuration with the presumed lone pair in the third equatorial position. One drastically elongated axial GeP "bond" (2.926(2) Å) results from the reluctance of GeII to accomodate more than four electron pairs as compared to the tin complex. The structural differences also may account for the observed differences in dynamic behavior in solution.
AB - The preparation and spectroscopic properties of the compounds [XC(PMe2)2]2Ge (X = PMe2. SiMe3) are reported and compared with those of the tin homologues. The dynamic behavior of the germanium compounds in solution is completely different from that of the tin complexes. An X-ray structure determination of [C(PMe2)3]2Ge (1a) reveals that it has an overall molecular structure which is very similar to that of the tin complex. The central atom is four-coordinated by P atoms in a distorted ψ-tbp configuration with the presumed lone pair in the third equatorial position. One drastically elongated axial GeP "bond" (2.926(2) Å) results from the reluctance of GeII to accomodate more than four electron pairs as compared to the tin complex. The structural differences also may account for the observed differences in dynamic behavior in solution.
UR - http://www.scopus.com/inward/record.url?scp=0000169627&partnerID=8YFLogxK
U2 - 10.1016/0022-328X(88)80474-1
DO - 10.1016/0022-328X(88)80474-1
M3 - Artikel
AN - SCOPUS:0000169627
SN - 0022-328X
VL - 344
SP - 153
EP - 161
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 2
ER -