In situ NMR observation of mono- and binuclear rhodium dihydride complexes using parahydrogen-induced polarization.
Publication type: Journal Article
Publication date: 2001-01-01
scimago Q1
wos Q1
SJR: 0.958
CiteScore: 7.4
Impact factor: 4.7
ISSN: 00201669, 1520510X
PubMed ID:
11209612
Inorganic Chemistry
Physical and Theoretical Chemistry
Abstract
Starting from the binuclear complex [RhCl(NBD)]2 (NBD = 2,5-norbornadiene) in the presence of the phosphines L = PMe3, PMe2Ph, PMePh2, PEt3, PEt2Ph, PEtPh2, or P(n-butyl)3, various mononuclear dihydrides of the type Rh(H)2CIL3, i.e., those of the homogeneous hydrogenation catalysts RhCIL3, have been obtained upon addition of parahydrogen, and their 1H NMR spectra have been investigated using parahydrogen-induced polarization (PHIP). Furthermore, the two binuclear complexes (H)(Cl)Rh(PMe3)2(mu-Cl)(mu-H)Rh(PMe3) and (H)(Cl)Rh(PMe2Ph)2(mu-Cl)(mu-H)Rh(PMe2Ph) have been detected and characterized by means of this in situ NMR method. Analogous complexes with trifluoroacetate instead of chloride, i.e., Rh(H)2(CF3COO)L3, have been generated in situ starting from Rh(NBD)(acac) in the presence of trifluoroacetic acid in combination with the phosphines L = PPh3, PEt2Ph, PEt3, and P(n-butyl)3, and their 1H NMR parameters have been determined.
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Koch A., Bargon J. In situ NMR observation of mono- and binuclear rhodium dihydride complexes using parahydrogen-induced polarization. // Inorganic Chemistry. 2001. Vol. 40. No. 3. pp. 533-539.
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Koch A., Bargon J. In situ NMR observation of mono- and binuclear rhodium dihydride complexes using parahydrogen-induced polarization. // Inorganic Chemistry. 2001. Vol. 40. No. 3. pp. 533-539.
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TY - JOUR
DO - 10.1021/ic991319r
UR - https://doi.org/10.1021/ic991319r
TI - In situ NMR observation of mono- and binuclear rhodium dihydride complexes using parahydrogen-induced polarization.
T2 - Inorganic Chemistry
AU - Koch, Andreas
AU - Bargon, Joachim
PY - 2001
DA - 2001/01/01
PB - American Chemical Society (ACS)
SP - 533-539
IS - 3
VL - 40
PMID - 11209612
SN - 0020-1669
SN - 1520-510X
ER -
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BibTex (up to 50 authors)
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@article{2001_Koch,
author = {Andreas Koch and Joachim Bargon},
title = {In situ NMR observation of mono- and binuclear rhodium dihydride complexes using parahydrogen-induced polarization.},
journal = {Inorganic Chemistry},
year = {2001},
volume = {40},
publisher = {American Chemical Society (ACS)},
month = {jan},
url = {https://doi.org/10.1021/ic991319r},
number = {3},
pages = {533--539},
doi = {10.1021/ic991319r}
}
Cite this
MLA
Copy
Koch, Andreas, and Joachim Bargon. “In situ NMR observation of mono- and binuclear rhodium dihydride complexes using parahydrogen-induced polarization..” Inorganic Chemistry, vol. 40, no. 3, Jan. 2001, pp. 533-539. https://doi.org/10.1021/ic991319r.