Zn complex with N-(4′-benzo-15-crown-5)-2(amino-N-tosyl)-phenylaidimine:: Synthesis, crystal structure, and vibration spectrum

The ZnL2 complex (I) (HL = N-(4'-benzo-15-crown-5)-2-(amino-N-tosyl)phenylaldimine) is synthesized and studied by IR spectroscopy and X-ray diffraction analysis. The crystals are monoclinic: a = 23.139(2) angstrom. b = 19.931(2) angstrom, c = 14.604(2) angstrom. beta = 121.20(1)degrees. Z = 4. space group C2/c. R = 0.751 tor 766 reflections with l > 2 sigma(l). The Zn atom in a molecule of the complex lies on a twofold axis and is coordinated at the vertices of a distorted tetrahedron by four N atoms of two HL ligands (average Zn-N distance 2.024 angstrom).