Preparation, Structural Characterization, and Reactions of Tantalum-Alkyne Complexes TaCl3(R1C⋮CR2)L2 (L2 = DME, Bipy, and TMEDA; L = Py)
Toshiyuki Oshiki*
1
,
Kouji Tanaka
1
,
Jun Yamada
1
,
Takaya Ishiyama
1
,
Yasutaka Kataoka
1
,
Kazushi Mashima
1
,
Kazuhide Tani
1
,
Kuniyuki Takai
1
Publication type: Journal Article
Publication date: 2003-01-08
scimago Q2
wos Q1
SJR: 0.676
CiteScore: 5.1
Impact factor: 2.9
ISSN: 02767333, 15206041
Organic Chemistry
Inorganic Chemistry
Physical and Theoretical Chemistry
Abstract
Tantalum-alkyne complexes with the general formula TaCl3(R1C⋮CR2)(dme) (1a, R1 = R2 = Et; 1b, R1 = R2 = n-C5H11; 1c, R1 = Ph, R2 = Me; 1d, R1 = R2 = Ph; DME = 1,2-dimethoxyethane) were synthesized by treatment of the corresponding alkynes with a low-valent tantalum derived by reduction of tantalum pentachloride with zinc powder in a mixed solvent of toluene and DME. The DME ligand can be replaced by 2 equiv of pyridine to afford the corresponding dipyridine complexes TaCl3(R1C⋮CR2)(py)2 (2a, R1 = R2 = Et; 2b, R1 = R2 = n-C5H11; 2c, R1 = Ph, R2 = Me; 2d, R1 = R2 = Ph). Additionally, the reaction of 1a with the bidentate nitrogen ligands bipyridine and N,N,N‘,N‘-tetramethyethylenediamine (= TMEDA) gave TaCl3(EtC⋮CEt)(bipy) (3) and TaCl3(EtC⋮CEt)(tmeda) (4), respectively. The η2- and 4e-coordination mode of an alkyne with a large contribution of a metalacyclopropene canonical structure was revealed by spectroscopic methods (NMR and IR) and crystallographic analyses of 1a, 1c, 2a, and 4. The reactivies of the...
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Oshiki* T. et al. Preparation, Structural Characterization, and Reactions of Tantalum-Alkyne Complexes TaCl3(R1C⋮CR2)L2 (L2 = DME, Bipy, and TMEDA; L = Py) // Organometallics. 2003. Vol. 22. No. 3. pp. 464-472.
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Oshiki* T., Tanaka K., Yamada J., Ishiyama T., Kataoka Y., Mashima K., Tani K., Takai K. Preparation, Structural Characterization, and Reactions of Tantalum-Alkyne Complexes TaCl3(R1C⋮CR2)L2 (L2 = DME, Bipy, and TMEDA; L = Py) // Organometallics. 2003. Vol. 22. No. 3. pp. 464-472.
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TY - JOUR
DO - 10.1021/om020510x
UR - https://doi.org/10.1021/om020510x
TI - Preparation, Structural Characterization, and Reactions of Tantalum-Alkyne Complexes TaCl3(R1C⋮CR2)L2 (L2 = DME, Bipy, and TMEDA; L = Py)
T2 - Organometallics
AU - Oshiki*, Toshiyuki
AU - Tanaka, Kouji
AU - Yamada, Jun
AU - Ishiyama, Takaya
AU - Kataoka, Yasutaka
AU - Mashima, Kazushi
AU - Tani, Kazuhide
AU - Takai, Kuniyuki
PY - 2003
DA - 2003/01/08
PB - American Chemical Society (ACS)
SP - 464-472
IS - 3
VL - 22
SN - 0276-7333
SN - 1520-6041
ER -
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@article{2003_Oshiki*,
author = {Toshiyuki Oshiki* and Kouji Tanaka and Jun Yamada and Takaya Ishiyama and Yasutaka Kataoka and Kazushi Mashima and Kazuhide Tani and Kuniyuki Takai},
title = {Preparation, Structural Characterization, and Reactions of Tantalum-Alkyne Complexes TaCl3(R1C⋮CR2)L2 (L2 = DME, Bipy, and TMEDA; L = Py)},
journal = {Organometallics},
year = {2003},
volume = {22},
publisher = {American Chemical Society (ACS)},
month = {jan},
url = {https://doi.org/10.1021/om020510x},
number = {3},
pages = {464--472},
doi = {10.1021/om020510x}
}
Cite this
MLA
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Oshiki*, Toshiyuki, et al. “Preparation, Structural Characterization, and Reactions of Tantalum-Alkyne Complexes TaCl3(R1C⋮CR2)L2 (L2 = DME, Bipy, and TMEDA; L = Py).” Organometallics, vol. 22, no. 3, Jan. 2003, pp. 464-472. https://doi.org/10.1021/om020510x.