Synthesis and characterization of bridged half-sandwich amides of titanium and zirconium

Wolfgang A. Herrmann; Marcus J.A. Morawietz

doi:10.1016/0022-328X(94)88198-7

Synthesis and characterization of bridged half-sandwich amides of titanium and zirconium

Wolfgang A. Herrmann
, Marcus J.A. Morawietz

Technical University of Munich

Technical University of Munich

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

107 Scopus citations

Abstract

The homoleptic metal amides Ti(NEt₂)₄, Ti(NMe₂)₄, and Zr(NEt₂)₄ react with silyl-substituted cyclopentadienes (1-3) and the indene 4 to yield the new half-sandwich complexes 8-16 of type Me₂ Si[CpR][NR′]M[NR′'₂)₂ (M = Ti, Zr). The new ligands have been characterized by ¹H, ¹³C, and ²⁹ Si NMR spectroscopy, IR, and GC-MS with regard to the sigmatropic rearrangements caused by hydrogen and silicon migration. The titanium and zirconium complexes 8-16 were characterized by their ¹H, ¹³C, and ²⁹Si NMR spectra, IR, and mass spectrometry. The capabilities and limitations of the "salt-free" procedure employed here are described.

Original language	English
Pages (from-to)	169-181
Number of pages	13
Journal	Journal of Organometallic Chemistry
Volume	482
Issue number	1-2
DOIs	https://doi.org/10.1016/0022-328X(94)88198-7
State	Published - 29 Nov 1994

Keywords

Amides
Linked cyclopentadienyl
Synthesis
Titanium
Zirconium

Access to Document

10.1016/0022-328X(94)88198-7

Cite this

@article{fa8f266ba11442359173b96cee74b88d,

title = "Synthesis and characterization of bridged half-sandwich amides of titanium and zirconium",

abstract = "The homoleptic metal amides Ti(NEt2)4, Ti(NMe2)4, and Zr(NEt2)4 react with silyl-substituted cyclopentadienes (1-3) and the indene 4 to yield the new half-sandwich complexes 8-16 of type Me2 Si[CpR][NR′]M[NR′'2)2 (M = Ti, Zr). The new ligands have been characterized by 1H, 13C, and 29 Si NMR spectroscopy, IR, and GC-MS with regard to the sigmatropic rearrangements caused by hydrogen and silicon migration. The titanium and zirconium complexes 8-16 were characterized by their 1H, 13C, and 29Si NMR spectra, IR, and mass spectrometry. The capabilities and limitations of the {"}salt-free{"} procedure employed here are described.",

keywords = "Amides, Linked cyclopentadienyl, Synthesis, Titanium, Zirconium",

author = "Herrmann, \{Wolfgang A.\} and Morawietz, \{Marcus J.A.\}",

year = "1994",

month = nov,

day = "29",

doi = "10.1016/0022-328X(94)88198-7",

language = "English",

volume = "482",

pages = "169--181",

journal = "Journal of Organometallic Chemistry",

issn = "0022-328X",

publisher = "Elsevier B.V.",

number = "1-2",

}

TY - JOUR

T1 - Synthesis and characterization of bridged half-sandwich amides of titanium and zirconium

AU - Herrmann, Wolfgang A.

AU - Morawietz, Marcus J.A.

PY - 1994/11/29

Y1 - 1994/11/29

N2 - The homoleptic metal amides Ti(NEt2)4, Ti(NMe2)4, and Zr(NEt2)4 react with silyl-substituted cyclopentadienes (1-3) and the indene 4 to yield the new half-sandwich complexes 8-16 of type Me2 Si[CpR][NR′]M[NR′'2)2 (M = Ti, Zr). The new ligands have been characterized by 1H, 13C, and 29 Si NMR spectroscopy, IR, and GC-MS with regard to the sigmatropic rearrangements caused by hydrogen and silicon migration. The titanium and zirconium complexes 8-16 were characterized by their 1H, 13C, and 29Si NMR spectra, IR, and mass spectrometry. The capabilities and limitations of the "salt-free" procedure employed here are described.

AB - The homoleptic metal amides Ti(NEt2)4, Ti(NMe2)4, and Zr(NEt2)4 react with silyl-substituted cyclopentadienes (1-3) and the indene 4 to yield the new half-sandwich complexes 8-16 of type Me2 Si[CpR][NR′]M[NR′'2)2 (M = Ti, Zr). The new ligands have been characterized by 1H, 13C, and 29 Si NMR spectroscopy, IR, and GC-MS with regard to the sigmatropic rearrangements caused by hydrogen and silicon migration. The titanium and zirconium complexes 8-16 were characterized by their 1H, 13C, and 29Si NMR spectra, IR, and mass spectrometry. The capabilities and limitations of the "salt-free" procedure employed here are described.

KW - Amides

KW - Linked cyclopentadienyl

KW - Synthesis

KW - Titanium

KW - Zirconium

UR - https://www.scopus.com/pages/publications/0003087704

U2 - 10.1016/0022-328X(94)88198-7

DO - 10.1016/0022-328X(94)88198-7

M3 - Article

AN - SCOPUS:0003087704

SN - 0022-328X

VL - 482

SP - 169

EP - 181

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

IS - 1-2

ER -

Synthesis and characterization of bridged half-sandwich amides of titanium and zirconium

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this