Spirocyclische, Ψ-tbp-konfigurierte Phosphan-Germylenkomplexe [XC(PMe2)2]2Ge (X = PMe2, SiMe3): Darstellung, Struktur und Moleküldynamik

Hans H. Karsch; Brigitte Deubelly; Gerhard Hanika; Jürgen Riede; Gerhard Müller

doi:10.1016/0022-328X(88)80474-1

Spirocyclische, Ψ-tbp-konfigurierte Phosphan-Germylenkomplexe [XC(PMe₂)₂]₂Ge (X = PMe₂, SiMe₃): Darstellung, Struktur und Moleküldynamik

Hans H. Karsch
, Brigitte Deubelly
, Gerhard Hanika
, Jürgen Riede
, Gerhard Müller

Natural Sciences

Technical University of Munich

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

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 Ge^II 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.

Original language	German
Pages (from-to)	153-161
Number of pages	9
Journal	Journal of Organometallic Chemistry
Volume	344
Issue number	2
DOIs	https://doi.org/10.1016/0022-328X(88)80474-1
State	Published - 19 Apr 1988

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10.1016/0022-328X(88)80474-1

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title = "Spirocyclische, Ψ-tbp-konfigurierte Phosphan-Germylenkomplexe [XC(PMe2)2]2Ge (X = PMe2, SiMe3): Darstellung, Struktur und Molek{\"u}ldynamik",

abstract = "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) {\AA}) 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.",

author = "Karsch, \{Hans H.\} and Brigitte Deubelly and Gerhard Hanika and J{\"u}rgen Riede and Gerhard M{\"u}ller",

year = "1988",

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doi = "10.1016/0022-328X(88)80474-1",

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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 - https://www.scopus.com/pages/publications/0000169627

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 -

Spirocyclische, Ψ-tbp-konfigurierte Phosphan-Germylenkomplexe [XC(PMe2)2]2Ge (X = PMe2, SiMe3): Darstellung, Struktur und Moleküldynamik

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Spirocyclische, Ψ-tbp-konfigurierte Phosphan-Germylenkomplexe [XC(PMe₂)₂]₂Ge (X = PMe₂, SiMe₃): Darstellung, Struktur und Moleküldynamik