Abstract
Cyrhetrenyl crown ether complexes [(η5-C5H4CHN-M)Re(CO)3] (where M = 4-benzo-15-crown-5 (3a), 4-benzo-18-crown-6 (3b), 2-methyl-15-crown-5 (3c), or 2-methyl-18-crown-6 (3d)) were synthesised from cyrhetrenylcarboxaldehyde (1) and the corresponding crown ether amines 2a-d. All the complexes were characterised by IR spectroscopy, 1H and 13C NMR spectroscopies, and mass spectrometry. The stereochemistry for imine compounds 3a-d were determined using the 1H and 13C NMR spectroscopy data, which indicated that these complexes have the anti-(E) conformation. This was also confirmed by the X-ray crystal structures of 3b and 3c in the solid state. Additionally, the electrochemical behaviours of 1 and 3a-d were studied.
Original language | English |
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Pages (from-to) | 42-48 |
Number of pages | 7 |
Journal | Journal of Organometallic Chemistry |
Volume | 788 |
DOIs | |
State | Published - 28 Apr 2015 |
Keywords
- Ether crown
- Imine
- Rhenium complexes