Synthesis of tantalum(V) amido silyl complexes and the unexpected formation of (Me2N)3Ta(η2-ONMe2)[OSi(SiMe 3)3] from the reaction of (Me2N)4Ta[Si(SiMe3)3] with O2

Zhongzhi Wu, Hu Cai, Xianghua Yu, Jaime R. Blanton, Jonathan B. Diminnie, Hong Jun Pan, Ziling Xue, Jeffrey C. Bryan

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

The synthesis and characterization of amido silyl complexes of tantalum(V) free of π-anionic ligands are reported. The amido silyl chloride complexes (Me2N)3Ta(SiR3)Cl [SiR3 = Si(SiMe3)3 (1a), SiPh2But (2)] were prepared from (Me2N)3TaCl2 and the corresponding silyllithium reagents Li(THF)3Si(SiMe3)3 and Li(THF)3SiPh2But. The amido silyl complexes (Me2N)4Ta-(SiR3) [SiR3 = Si(SiMe3)3 (3), SiPh2But (4)] were synthesized by the reactions of (Me2N)4TaCl with Li(THF)3SiR3. Complex 3 was found to react with 1 equiv of O2 to give an oxidation product (Me2N)3Ta(η2-ONMe2)[OSi(SiMe 3)3] (5), and the structure of 5 was confirmed by X-ray crystallography. The spectroscopic data and crystal structure determination reveal that the coordination geometry around Ta metal in la and 2-4 is trigonal bipyramid with silyl ligands in an equatorial position.

Original languageEnglish (US)
Pages (from-to)3973-3978
Number of pages6
JournalOrganometallics
Volume21
Issue number19
DOIs
StatePublished - Sep 16 2002

Fingerprint

Tantalum
tantalum
Ligands
ligands
data structures
X ray crystallography
synthesis
crystallography
reagents
Data structures
Chlorides
Crystal structure
Metals
chlorides
Oxidation
oxidation
crystal structure
Geometry
products
geometry

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

Synthesis of tantalum(V) amido silyl complexes and the unexpected formation of (Me2N)3Ta(η2-ONMe2)[OSi(SiMe 3)3] from the reaction of (Me2N)4Ta[Si(SiMe3)3] with O2. / Wu, Zhongzhi; Cai, Hu; Yu, Xianghua; Blanton, Jaime R.; Diminnie, Jonathan B.; Pan, Hong Jun; Xue, Ziling; Bryan, Jeffrey C.

In: Organometallics, Vol. 21, No. 19, 16.09.2002, p. 3973-3978.

Research output: Contribution to journalArticle

Wu, Zhongzhi ; Cai, Hu ; Yu, Xianghua ; Blanton, Jaime R. ; Diminnie, Jonathan B. ; Pan, Hong Jun ; Xue, Ziling ; Bryan, Jeffrey C. / Synthesis of tantalum(V) amido silyl complexes and the unexpected formation of (Me2N)3Ta(η2-ONMe2)[OSi(SiMe 3)3] from the reaction of (Me2N)4Ta[Si(SiMe3)3] with O2. In: Organometallics. 2002 ; Vol. 21, No. 19. pp. 3973-3978.
@article{d08080694e2e405e9d2f1b638921bfeb,
title = "Synthesis of tantalum(V) amido silyl complexes and the unexpected formation of (Me2N)3Ta(η2-ONMe2)[OSi(SiMe 3)3] from the reaction of (Me2N)4Ta[Si(SiMe3)3] with O2",
abstract = "The synthesis and characterization of amido silyl complexes of tantalum(V) free of π-anionic ligands are reported. The amido silyl chloride complexes (Me2N)3Ta(SiR3)Cl [SiR3 = Si(SiMe3)3 (1a), SiPh2But (2)] were prepared from (Me2N)3TaCl2 and the corresponding silyllithium reagents Li(THF)3Si(SiMe3)3 and Li(THF)3SiPh2But. The amido silyl complexes (Me2N)4Ta-(SiR3) [SiR3 = Si(SiMe3)3 (3), SiPh2But (4)] were synthesized by the reactions of (Me2N)4TaCl with Li(THF)3SiR3. Complex 3 was found to react with 1 equiv of O2 to give an oxidation product (Me2N)3Ta(η2-ONMe2)[OSi(SiMe 3)3] (5), and the structure of 5 was confirmed by X-ray crystallography. The spectroscopic data and crystal structure determination reveal that the coordination geometry around Ta metal in la and 2-4 is trigonal bipyramid with silyl ligands in an equatorial position.",
author = "Zhongzhi Wu and Hu Cai and Xianghua Yu and Blanton, {Jaime R.} and Diminnie, {Jonathan B.} and Pan, {Hong Jun} and Ziling Xue and Bryan, {Jeffrey C.}",
year = "2002",
month = "9",
day = "16",
doi = "10.1021/om020537g",
language = "English (US)",
volume = "21",
pages = "3973--3978",
journal = "Organometallics",
issn = "0276-7333",
publisher = "American Chemical Society",
number = "19",

}

TY - JOUR

T1 - Synthesis of tantalum(V) amido silyl complexes and the unexpected formation of (Me2N)3Ta(η2-ONMe2)[OSi(SiMe 3)3] from the reaction of (Me2N)4Ta[Si(SiMe3)3] with O2

AU - Wu, Zhongzhi

AU - Cai, Hu

AU - Yu, Xianghua

AU - Blanton, Jaime R.

AU - Diminnie, Jonathan B.

AU - Pan, Hong Jun

AU - Xue, Ziling

AU - Bryan, Jeffrey C.

PY - 2002/9/16

Y1 - 2002/9/16

N2 - The synthesis and characterization of amido silyl complexes of tantalum(V) free of π-anionic ligands are reported. The amido silyl chloride complexes (Me2N)3Ta(SiR3)Cl [SiR3 = Si(SiMe3)3 (1a), SiPh2But (2)] were prepared from (Me2N)3TaCl2 and the corresponding silyllithium reagents Li(THF)3Si(SiMe3)3 and Li(THF)3SiPh2But. The amido silyl complexes (Me2N)4Ta-(SiR3) [SiR3 = Si(SiMe3)3 (3), SiPh2But (4)] were synthesized by the reactions of (Me2N)4TaCl with Li(THF)3SiR3. Complex 3 was found to react with 1 equiv of O2 to give an oxidation product (Me2N)3Ta(η2-ONMe2)[OSi(SiMe 3)3] (5), and the structure of 5 was confirmed by X-ray crystallography. The spectroscopic data and crystal structure determination reveal that the coordination geometry around Ta metal in la and 2-4 is trigonal bipyramid with silyl ligands in an equatorial position.

AB - The synthesis and characterization of amido silyl complexes of tantalum(V) free of π-anionic ligands are reported. The amido silyl chloride complexes (Me2N)3Ta(SiR3)Cl [SiR3 = Si(SiMe3)3 (1a), SiPh2But (2)] were prepared from (Me2N)3TaCl2 and the corresponding silyllithium reagents Li(THF)3Si(SiMe3)3 and Li(THF)3SiPh2But. The amido silyl complexes (Me2N)4Ta-(SiR3) [SiR3 = Si(SiMe3)3 (3), SiPh2But (4)] were synthesized by the reactions of (Me2N)4TaCl with Li(THF)3SiR3. Complex 3 was found to react with 1 equiv of O2 to give an oxidation product (Me2N)3Ta(η2-ONMe2)[OSi(SiMe 3)3] (5), and the structure of 5 was confirmed by X-ray crystallography. The spectroscopic data and crystal structure determination reveal that the coordination geometry around Ta metal in la and 2-4 is trigonal bipyramid with silyl ligands in an equatorial position.

UR - http://www.scopus.com/inward/record.url?scp=0038006007&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0038006007&partnerID=8YFLogxK

U2 - 10.1021/om020537g

DO - 10.1021/om020537g

M3 - Article

VL - 21

SP - 3973

EP - 3978

JO - Organometallics

JF - Organometallics

SN - 0276-7333

IS - 19

ER -