Ta-Yung Chi

Diperchlorato[(1RS,4RS,5SR,7RS,8SR,11SR,12RS,14SR)-(5,7,12,14-tetramethyl-1,4,8,11-tetraazacyclotetradecane)]copper(II)

The CuII ion of [Cu(C14H32N4)(ClO4)2], is six-coordinated in a distorted octahedral geometry with the four N atoms of the macrocyclic ligand equatorial and the two O atoms of the perchlorate ion axial. The quadridentate ligand adopts its most stable conformation with the two six-membered rings in chair forms and the two five-membered rings in gauche forms. The complex has a 1RS,4RS,8SR,11SR configuration for the four chiral N-atom centres and a 5SR,7RS,12RS,14SR configuration for the two chiral C-atom centres.

trans‐Dichloro[(1RS,4RS,5SR,7RS,8SR,11SR,12RS,14SR)‐5,7,12,14‐tetramethyl‐1,4,8,11‐tetraazacyclotetradecane‐κ4N]cobalt(III) Perchlorate

The crystal and molecular structure of the title compound, [CoCl2(C14H32N4)]ClO4, has been determined. The CoIII ion is six-coordinate with a distorted octahedral geometry consisting of the four N atoms of the macrocyclic ligand in equatorial positions and the two Cl atoms in axial positions. The quadridentate macrocyclic ligand adopts its most stable configuration, with two six-membered rings in chair conformations and two five-membered rings in gauche forms.