Type of Publication: | Journal article |
URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-239469 |
Author: | Gutmann, Stephan; Burger, Peter; Prosenc, Marc-Heinrich; Brintzinger, Hans-Herbert |
Year of publication: | 1990 |
Published in: | Journal of Organometallic Chemistry ; 397 (1990), 1. - pp. 21-28. - ISSN 0022-328X |
DOI (citable link): | https://dx.doi.org/10.1016/0022-328X(90)85310-U |
Summary: |
The NMR signals of cyclopentadienyl ring protons and C atoms in ansa-metallocene derivatives of general type (CH3)4C2(C5H4)2M(X,L)n, with a 16-electron configuration, i.e. with MXn = TiF2, TiCl2, TiBr2, TiI2 or Ti(CH3)2, and with an 18-electron configuration, i.e. with MLn = Ti(CO)2, Ti(P(CH3)3)2, Cr(CO) or Fe, have been assigned to the α- and β-ring positions by nuclear Overhauser effect and selective decoupling studies. Whereas the α-proton resonances appear at higher fields than those for the β-protons in all the complexes with the 16-electron configuration, the opposite is the case for the 18-electron ansa-metallocene derivatives studied.
|
Subject (DDC): | 540 Chemistry |
Link to License: | In Copyright |
GUTMANN, Stephan, Peter BURGER, Marc-Heinrich PROSENC, Hans-Herbert BRINTZINGER, 1990. ansa-metallocene derivatives XX. An assignment of 1H- and 13C-NMR signals in ansa-metallocene complexes with 16-electron and 18-electron configuration. In: Journal of Organometallic Chemistry. 397(1), pp. 21-28. ISSN 0022-328X. Available under: doi: 10.1016/0022-328X(90)85310-U
@article{Gutmann1990ansam-23946, title={ansa-metallocene derivatives XX. An assignment of 1H- and 13C-NMR signals in ansa-metallocene complexes with 16-electron and 18-electron configuration}, year={1990}, doi={10.1016/0022-328X(90)85310-U}, number={1}, volume={397}, issn={0022-328X}, journal={Journal of Organometallic Chemistry}, pages={21--28}, author={Gutmann, Stephan and Burger, Peter and Prosenc, Marc-Heinrich and Brintzinger, Hans-Herbert} }
Gutmann_239469.pdf | 315 |