ChemInform Abstract: Synthesis, Characterization, Crystal Structures and Magnetic Exchange in Dinuclear Copper Complexes with 3-Amino-1-propanol as Terminal and Bridging Ligand.
Abstract
Synthesis, spectroscopic and magnetic properties, and X-ray structures are described for the two types (III) (space group P21/c, Z=4) and (V) of dinuclear Cu(II) compounds of the title ligand (I).
ChemInform Abstract
Synthesis, spectroscopic and magnetic properties, and X-ray structures are described for the two types (III) (space group P21/c, Z=4) and (V) of dinuclear Cu(II) compounds of the title ligand (I). Analogous compounds to (III) are obtained in which the nitrate is replaced by formate, chloride, or bromide. The noncoordinating anions of the type (V) can also be bromide, chloride, nitrate, or tetrafluoroborate. In both types the dimeric units are polymerized into infinite chains. Ligand-field spectra agree with square-pyramidal (4 + 1) or distorted octahedral (4 + 1 + 1) coordination geometries for Cu(II) in all cases. These dinuclear, square-planar based Cu(II) compounds with O-bridging ligands show a strongly magnetic coupling which is largely determined by the bridging angle Cu-O-Cu.
