Trans/Cis Isomerization of [Rucl2(Diphosphine)(Diamine)] Complexes: Synthesis, X-Ray Structure and Catalytic Activity in Hydrogenation
- Publication Type
- Original research
- Authors
- Ismail Warad
- Hanan AlHussen
- Hamdah Alanazi
- Refaat Mahfouz
- Belkheir Hammouti
- Mohammad A. Al-Dosari
- Rawhi Al-Far
- Taibi Ben Hadda
- Fulltext
- Download
The diamine (Nsingle bondN) co-ligand 2,2-dimethyl-1,3-propanediamine and 2,3-diaminophathalene react individually with [RuCl2(dppb)2(μ-dppb)] to afford complexes with kinetically stable trans-[Cl2Ru(dppb)(Nsingle bondN)] as the favoured isomer. The thermodynamically stable cis-[Cl2Ru(dppb)(Nsingle bondN)] isomer of complex 1 was formed from the trans-1 isomer. The trans to cis isomerization reaction was conducted in CHCl3 at RT and monitored by 31P{1H} NMR. The structures of the desired complexes were characterized via elemental analyses, IR and, UV–visible spectroscopy, FAB-MS and NMR. The structure of the cis-1 isomer was determined by single crystal X-ray measurements. Both the trans-1 and cis-1 isomers were shown to have a significant catalytic role in selective hydrogenation reactions under mild conditions using cinnamic aldehyde as typical model reaction.
Journal
- Title
- Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Volume 105, 15 March 2013, Pages 466–473
- Publisher
- --
- Publisher Country
- Palestine
- Publication Type
- Both (Printed and Online)
- Volume
- --
- Year
- 2013
- Pages
- --