Related Experiment Video
Updated: Aug 17, 2026

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
A new tricarbonylrhenium(I) compound incorporating the tridentate ligand N,N-bispicolyl-2-ethanolamine
Sangeeta Ray Banerjee1, Jon Zubieta
1Department of Chemistry, 111 College Place, Syracuse University, New York 13244, USA. saray@mailbox.syr.edu
Abstract:
The title compound, {[N,N-bis(2-pyridylmethyl)amino]ethanol-kappa(3)N,N',N''}tricarbonylrhenium(I) bromide methanol solvate, [Re(C14H17N3O)(CO)3]Br.CH4O, has been prepared in almost quantitative yield by reacting (NEt4)2[Re(CO)3Br3] with the ligand N,N-bispicolyl-2-ethanolamine in refluxing methanol. The X-ray structure revealed that the Re(CO)3N3 coordination sphere is highly distorted from octahedral geometry and that the Re(CO)3 core is facial. The coordinated ligand forms two five-membered rings, with the pyridine rings in a butterfly formation. The OH group is not involved in metal coordination. The packing of the molecule shows a network of classical O...H-O and Br...H-O, and non-classical Br...H-C and O...H-C hydrogen bonds between the methanol solvate molecules, the metal complex cations and the bromide anions.
More Related Videos
Related Concept Videos
Radicals: Electronic Structure and Geometry
Accordingly, the structure of a trivalent radical lies between the geometries of carbocations and carbanions. An sp2-hybridized carbocation is trigonal planar, while an sp3-hybridized carbanion is trigonal pyramidal. Here, the difference in geometry is...
Aromatic Hydrocarbon Cations: Structural Overview
Removing one hydrogen from the intervening CH2 group with both...
Hybridization of Atomic Orbitals II
Naming Enantiomers
Radical Reactivity: Nucleophilic Radicals
Thermal Electrocyclic Reactions: Stereochemistry
Selection Rules: Thermal Activation
Conjugated systems containing an even number of π-electron pairs undergo a conrotatory ring closure. For example, thermal electrocyclization of (2E,4E)-2,4-hexadiene, a conjugated diene containing two π-electron pairs, gives trans-3,4-dimethylcyclobutene.

