New metallocene complexes of Nb and Ta with functionalized diazoalkanes
D A Lemenovskii
1
,
Martin Putala
1
,
G. I. Nikonov
1
,
N B Kazennova
1
,
D. S. Yufit
2
,
Yu. T. Struchkov
2
1
Chemical Department, Moscow State Uniuersity, Moscow 118899 Russian Federation
|
Publication type: Journal Article
Publication date: 1993-07-01
scimago Q3
wos Q2
SJR: 0.385
CiteScore: 4.1
Impact factor: 2.4
ISSN: 0022328X, 18728561
Materials Chemistry
Organic Chemistry
Biochemistry
Inorganic Chemistry
Physical and Theoretical Chemistry
Abstract
The reaction of Cp2MH3, where M Nb or Ta, with N2CPh2, N2CPh(o-C6H4Br) and N2CHCOOEt was thoroughly studied. It was shown that the primary products of the reaction are the complexes Cp2M(H)(η1-N2CRR′) (2). The complexes 2 are readily oxidized by air to give polymeric (Cp2MO)n, N2CRR′ and RR′CN2CRR′.
Interaction of an excess of N2CPh(o-C6H4Br) with Cp2NbH3 leads to a 17-electron complex Cp2Nb( NNCPho-C6H4)2 (6) with two σ-N pyrazole ligands. Finally the reaction of Cp2NbH3 with N2CHCOOEt gives an unusual dimeric complex Cp2Nb2(η5-C5H4C(COOEt)N μ-N)2. The complexes 2 were found to undergo easily substitution of a hydride ligand for a halogen atom.
The results of X-ray analysis of the complexes 6 and Cp2Nb(Cl)-η1-N2CPh(o-C6H4Br) are provided.
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Lemenovskii D. A. et al. New metallocene complexes of Nb and Ta with functionalized diazoalkanes // Journal of Organometallic Chemistry. 1993. Vol. 454. No. 1-2. pp. 123-131.
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Lemenovskii D. A., Putala M., Nikonov G. I., Kazennova N. B., Yufit D. S., Struchkov Y. T. New metallocene complexes of Nb and Ta with functionalized diazoalkanes // Journal of Organometallic Chemistry. 1993. Vol. 454. No. 1-2. pp. 123-131.
Cite this
RIS
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TY - JOUR
DO - 10.1016/0022-328X(93)83233-L
UR - https://linkinghub.elsevier.com/retrieve/pii/0022328X9383233L
TI - New metallocene complexes of Nb and Ta with functionalized diazoalkanes
T2 - Journal of Organometallic Chemistry
AU - Lemenovskii, D A
AU - Putala, Martin
AU - Nikonov, G. I.
AU - Kazennova, N B
AU - Yufit, D. S.
AU - Struchkov, Yu. T.
PY - 1993
DA - 1993/07/01
PB - Elsevier
SP - 123-131
IS - 1-2
VL - 454
SN - 0022-328X
SN - 1872-8561
ER -
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BibTex (up to 50 authors)
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@article{1993_Lemenovskii,
author = {D A Lemenovskii and Martin Putala and G. I. Nikonov and N B Kazennova and D. S. Yufit and Yu. T. Struchkov},
title = {New metallocene complexes of Nb and Ta with functionalized diazoalkanes},
journal = {Journal of Organometallic Chemistry},
year = {1993},
volume = {454},
publisher = {Elsevier},
month = {jul},
url = {https://linkinghub.elsevier.com/retrieve/pii/0022328X9383233L},
number = {1-2},
pages = {123--131},
doi = {10.1016/0022-328X(93)83233-L}
}
Cite this
MLA
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Lemenovskii, D. A., et al. “New metallocene complexes of Nb and Ta with functionalized diazoalkanes.” Journal of Organometallic Chemistry, vol. 454, no. 1-2, Jul. 1993, pp. 123-131. https://linkinghub.elsevier.com/retrieve/pii/0022328X9383233L.
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