Structural Determination of Ruthenium Complexes Containing Bi-Dentate Pyrrole-Ketone Ligands

Ya-Wen Tsai; Yun-Fan Chen; Yong-Jie Li; Kuan-Hung Chen; Chia-Her Lin; Jui-Hsien Huang

doi:10.3390/molecules23010159

Structural Determination of Ruthenium Complexes Containing Bi-Dentate Pyrrole-Ketone Ligands

Molecules. 2018 Jan 13;23(1):159. doi: 10.3390/molecules23010159.

Authors

Ya-Wen Tsai¹, Yun-Fan Chen², Yong-Jie Li³, Kuan-Hung Chen⁴, Chia-Her Lin⁵, Jui-Hsien Huang⁶

Affiliations

¹ Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan. s0225019@gmail.com.
² Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan. evons44@gmail.com.
³ Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan. Jack100960503@gmail.com.
⁴ Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan. k19920922@yahoo.com.tw.
⁵ Department of Chemistry, Chung-Yuan Christian University, Chun-Li 320, Taiwan. chiaher@cycu.edu.tw.
⁶ Department of Chemistry, Chung-Yuan Christian University, Chun-Li 320, Taiwan. juihuang@cc.ncue.edu.tw.

Abstract

A series of ruthenium compounds containing a pyrrole-ketone bidentate ligand, 2-(2'-methoxybenzoyl)pyrrole (1), have been synthesized and characterized. Reacting 1 with [(η⁶-cymene)RuCl₂]₂ and RuHCl(CO)(PPh₃)₃ generated Ru(η⁶-cymene)[C₄H₃N-2-(CO-C₆H₄-2-OMe)]Cl (2) and {RuCl(CO)(PPh₃)₂[C₄H₃N-2-(COC₆H₄-2-OMe)]} (3), respectively, in moderate yields. Successively reacting 2 with sodium cyanate and sodium azide gave {Ru(η⁶-cymene)[C₄H₃N-2-(CO-C₆H₄-2-OMe)]X} (4, X=OCN; 5, X=N₃) with the elimination of sodium chloride. Compounds 2-5 were all characterized by ¹H and ¹³C-NMR spectra and their structures were also determined by X-ray single crystallography.

Keywords: cymene; pyrrole-ketone; ruthenium; ruthenium-hydride.

MeSH terms

Hydrogen Bonding
Ketones / chemistry*
Models, Molecular
Molecular Conformation
Molecular Structure
Organometallic Compounds / chemistry*
Pyrroles / chemistry*
Ruthenium / chemistry*

Substances

Ketones
Organometallic Compounds
Pyrroles
Ruthenium