SCHEDULED MAINTENANCE
Photochemical C–C coupling reaction of an iron acetylide
complex
[Fe(η5-C5Me5)(CO)2(C
![[triple bond, length as m-dash]](https://www.rsc.org/images/entities/char_e002.gif)
CPh)] with alk-1-ynes (RCCH) leading to cyclic compounds
including paramagnetic iron(i) cyclopentadienone complexes
[Fe(η5-C5Me5)(η4-2-Ph
-5-R-C5H2O)]
Abstract
Photolysis of
[Fe(η
5
-C
5
Me
5
)(CO)
2
(C
CPh)] with methyl propynoate which bears a coordinating
substituent (CO
2
Me) affords a metallabicyclic compound
incorporating two molecules of the alkyne, whereas the reaction with
alk-1-ynes (RCCH) bearing a non-coordinating substituent (R =
alkyl, Ph, SiMe
3
) produces paramagnetic 17e
iron(I)-cyclopentadienone complexes
[Fe(η
5
-C
5
Me
5
)(η
4
-2-Ph
-5-R-C
5
H
2
O)].
CPh)] with methyl propynoate which bears a coordinating
substituent (CO
2
Me) affords a metallabicyclic compound
incorporating two molecules of the alkyne, whereas the reaction with
alk-1-ynes (RCCH) bearing a non-coordinating substituent (R =
alkyl, Ph, SiMe
3
) produces paramagnetic 17e
iron(I)-cyclopentadienone complexes
[Fe(η
5
-C
5
Me
5
)(η
4
-2-Ph
-5-R-C
5
H
2
O)].
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![[triple bond, length as m-dash]](https://www.rsc.org/images/entities/h2_char_e002.gif)
CPh)] with alk-1-ynes (RC
