The Femtochemistry of a Ferracyclobutadiene.
The Femtochemistry of a Ferracyclobutadiene.
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二茂铁环丁二烯的飞秒化学
DOI:
10.1002/anie.201702987
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发表时间:
2017
影响因子:
--
通讯作者:
P. Vöhringer
中科院分区:
文献类型:
--
作者:
B. Wezisla;J. Lindner;U. Das;A.C. Filippou;P. Vöhringer
The eminent role of metallacyclobutadienes as catalytic intermediates in organic synthesis and polymer chemistry is widely acknowledged. In contrast, their photochemistry is as yet entirely unexplored. Herein, the photo‐induced primary processes of a ferracyclobutadiene tricarbonyl complex in solution are revealed by femtosecond mid‐infrared spectroscopy. The time‐resolved vibrational spectra expose an ultrafast substitution of a basal CO ligand by a solvent molecule in a consecutive dissociation–association mechanism. Following optical excitation, the system relaxes non‐radiatively to the triplet ground state from which a CO is expelled. Since the triplet state is bound with respect to Fe−CO cleavage, the dissociation can only occur from vibrationally excited states. The excitation energy, vibrational relaxation, and intersystem crossing to the singlet ground state control the primary quantum yield for formation of the ferracyclic dicarbonyl–solvent product complex.
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影响因子:
15
作者:
H. Vennekate;D. Schwarzer;J. Torres-Alacan;P. Vöhringer
通讯作者:
P. Vöhringer
影响因子:
--
作者:
A. C. Filippou;Torsten Rosenauer
通讯作者:
Torsten Rosenauer
影响因子:
--
作者:
Joel Torres;Ujjal Das;Boris Wezisla;M. Straßmann;A. C. Filippou;P. Vöhringer
通讯作者:
P. Vöhringer
DOI:
--
发表时间:
1972
期刊:
影响因子:
--
作者:
R. Tuggle;D. Weaver
通讯作者:
D. Weaver
DOI:
--
发表时间:
1970
期刊:
影响因子:
--
作者:
R. Tuggle;D. Weaver
通讯作者:
D. Weaver