Rahman Bikas
Electronic effects of aromatic rings on the catalytic activity of dioxidomolybdenum(VI)-hydrazone complexes
Bikas, Rahman; Lippolis, Vito; Noshiranzadeh, Nader; Farzaneh-Bonab, Hossein; Blake, Alexander J.; Siczek, Milosz; Hosseini-Monfared, Hassan; Lis, Tadeusz
Authors
Vito Lippolis
Nader Noshiranzadeh
Hossein Farzaneh-Bonab
Alexander J. Blake
Milosz Siczek
Hassan Hosseini-Monfared
Tadeusz Lis
Abstract
Nine dioxidomolybdenum(VI) complexes were synthesized by the reaction of MoO3 with tridentate hydrazone Schiff base ligands obtained from the reaction of aromatic acid hydrazides (3-hydroxy-2-naphthoic acid hydrazide, 4-pyridine carboxylic acid hydrazide or 2-furane carboxylic acid hydrazide) and ortho-hydroxy aldehyde derivatives (5-iodo-2-hydroxybenzaldehyde, 2-hydroxy-1-naphthaldehyde or 2-hydroxy-3-methoxybenzaldehyde). All ligands and complexes were characterized by elemental analysis and spectroscopic methods. The structures of seven complexes were further elucidated by single-crystal X-ray diffraction analysis which indicated a distorted octahedral geometry at the metal centre. Spectroscopic and X-ray analyses indicated that the ligands are coordinated to the molybdenum(VI) ion as dinegative ligands due to deprotonation of phenolic OH and amidic NH groups upon complexation. These complexes were used as catalyst in the oxidation of cyclooctene and thioanisol in the presence of hydrogen peroxide as environmental friendly oxidant. In order to achieve the highest catalytic activity, the effects of important parameters such as solvent, temperature and the molar ratio of oxidant to substrate were optimized. The results indicate that electron-withdrawing substituents on the ligands increase the catalytic activity of dioxidomolybdenum(VI)-hydrazone complexes.
Citation
Bikas, R., Lippolis, V., Noshiranzadeh, N., Farzaneh-Bonab, H., Blake, A. J., Siczek, M., …Lis, T. (2017). Electronic effects of aromatic rings on the catalytic activity of dioxidomolybdenum(VI)-hydrazone complexes. European Journal of Inorganic Chemistry, 2017(6), 999-1006. https://doi.org/10.1002/ejic.201601359
Journal Article Type | Article |
---|---|
Acceptance Date | Dec 13, 2016 |
Online Publication Date | Dec 13, 2016 |
Publication Date | Feb 28, 2017 |
Deposit Date | Dec 16, 2016 |
Publicly Available Date | Mar 28, 2024 |
Journal | European Journal of Inorganic Chemistry |
Print ISSN | 1434-1948 |
Electronic ISSN | 1099-0682 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 2017 |
Issue | 6 |
Pages | 999-1006 |
DOI | https://doi.org/10.1002/ejic.201601359 |
Public URL | https://nottingham-repository.worktribe.com/output/833729 |
Publisher URL | http://onlinelibrary.wiley.com/wol1/doi/10.1002/ejic.201601359/abstract |
Additional Information | This is the peer reviewed version of the following article: Electronic effects of aromatic rings on the catalytic activity of dioxidomolybdenum(VI)-hydrazone complexes / Rahman Bikas1, Vito Lippolis, Nader Noshiranzadeh, Hossein Farzaneh-Bonab, Alexander J. Blake, Milosz Siczek, Hassan Hosseini-Monfared and Tadeusz Lis, which has been published in final form at http://dx.doi.org/10.1002/ejic.201601359. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. |
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