A novel bipyridine-based hexadentate tripodal framework with a strong preference for trigonal prismatic co-ordination geometries.
The synthesis of the novel ligand tris(2,2'-bipyrid-6-yl) methanol (L(1)) is described. Co-ordination of the ligand to the first row transition metals (Mn(2+)-Zn(2+)) as well as Cd(2+) showed that the ligand formed complexes close to trigonal prismatic in geometry in the solid state. Analysis of the geometry of the co-ordination spheres showed varying degrees of trigonal prismatic and octahedral character. For each d-electron configuration, this could be related to the relative differences in ligand field stabilisation energies for the two geometries.
Knight
James C
JC
Department of Chemistry, Cardiff University, PO Box 912, Cardiff, CF10 3TB.
Alvarez
Santiago
S
Amoroso
Angelo J
AJ
Edwards
Peter G
PG
Singh
Neha
N
D015082:2,2'-Dipyridyl / Q000737:chemistry*; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D018360:Crystallography, X-Ray; D055664:Electrochemical Techniques; D008024:Ligands; D008968:Molecular Conformation; D028561:Transition Elements / Q000737:chemistry
D056831:Coordination Complexes; D008024:Ligands; D028561:Transition Elements; D015082:2,2'-Dipyridyl