6533b824fe1ef96bd12816f1
RESEARCH PRODUCT
[(1,4,8,11-Tetraazacyclotetradeca-1,4,8,11-tetrayl)tetraacetamide-kappa6N1,N4,N8,N11,O1,O8]copper(II) sulfate 4.5-hydrate.
Roger GuilardDavid BerardMichel MeyerEnrique Espinosasubject
Hydrogen bondStereochemistrychemistry.chemical_elementGeneral MedicineCrystal structureCopperGeneral Biochemistry Genetics and Molecular BiologyCopper(II) sulfatechemistry.chemical_compoundCrystallographychemistryAmideCyclammedicineElongated octahedronHydratemedicine.drugdescription
The crystal structure of the title copper(II) complex, [Cu(C(18)H(36)N(8)O(4))]SO(4).4.5H(2)O, formed with the tetraamide cyclam derivative 2-(4,8,11-triscarbamoylmethyl-1,4,8,11-tetraazacyclotetradec-1-yl)acetamide (TETAM), is described. The macrocycle lies on an inversion centre occupied by the hexacoordinated Cu atom. The four macrocyclic tertiary amines form the equatorial plane of an axially Jahn-Teller elongated octahedron. Two O atoms belonging to two diagonally opposite amide groups occupy the apical positions, giving rise to a trans-III stereochemistry, while both the remaining pendant side arms extend outwards from the macrocyclic cavity and are engaged in hydrogen bonds with sulfate anions and co-crystallized water molecules.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-01-23 | Acta crystallographica. Section C, Crystal structure communications |