Coordination Equilibria Between Seven- and Five-coordinate Iron(II) Complexes

TY - JOUR

T1 - Coordination Equilibria Between Seven- and Five-coordinate Iron(II) Complexes

AU - Grau, Michaela

AU - England, Jason

AU - Torres Martin De Rosales, Rafael

AU - Rzepa, Henry S.

AU - White, Andrew J. P.

AU - Britovsek, George J. P.

PY - 2013/10/21

Y1 - 2013/10/21

N2 - Octahedral, tetrahedral, and square planar geometries are the most often encountered coordination geometries for transition metal complexes. In certain cases, coordination equilibria can exist between different geometries, such as between six- and four-coordinate geometries in nickel(II) complexes, which were discovered half a century ago. Here, we present the first examples of a seven-five coordination equilibrium. Extensive spectroscopic studies in solution have provided evidence for a dynamic equilibrium between two iron(II) complexes, one with a seven-coordinate pentagonal bipyramidal geometry and one with a five-coordinate trigonal bipyramidal geometry.

AB - Octahedral, tetrahedral, and square planar geometries are the most often encountered coordination geometries for transition metal complexes. In certain cases, coordination equilibria can exist between different geometries, such as between six- and four-coordinate geometries in nickel(II) complexes, which were discovered half a century ago. Here, we present the first examples of a seven-five coordination equilibrium. Extensive spectroscopic studies in solution have provided evidence for a dynamic equilibrium between two iron(II) complexes, one with a seven-coordinate pentagonal bipyramidal geometry and one with a five-coordinate trigonal bipyramidal geometry.

U2 - 10.1021/ic401416h

DO - 10.1021/ic401416h

M3 - Article

SN - 0020-1669

VL - 52

SP - 11867

EP - 11874

JO - INORGANIC CHEMISTRY

JF - INORGANIC CHEMISTRY

IS - 20

ER -