SYNTHESIS AND CRYSTAL-STRUCTURE OF A NOVEL COPPER(I) CROWN COMPLEX - A SPECTROCHEMICAL METAL-ION PROBE FOR ALKALI-METAL AND ALKALINE-EARTH METAL-CATIONS

Reactions of [Cu(PPh(3))(2)(MeCN)(2)]BF4 with the diimine ligands L(1) and L(2) [L(1) = N-(2-pyridinylmethylene)-2,3,5,6,8,9,11, ro-1,4,7,10 ,13-benzopentaoxacyclodecin-16-ylamine; L(2) = N-(2-pyridinylmethylene )phenylamine] yielded the complexes [Cu(PPh(3))(2)(L(1))BF4 (1) and [C u(PPh(3))(2)(L(2))]BF4 (2), respectively. Their photophysical and elec trochemical properties have been studied. The X-ray crystal structure and the cation binding properties of 1 have also been determined.