SYNTHESIS AND CRYSTAL-STRUCTURES OF MERCURY(II) IODIDE COMPLEXES WITH3-PYRIDYLMETHYLAMINO-SUBSTITUTED AND 4-PYRIDYLMETHYLAMINO-SUBSTITUTEDAND 4-PYRIDYLMETHOXY-SUBSTITUTED CYCLOPHOSPHAZENE LIGANDS

Multifunctional cyclophosphazene ligands with 2-, 3-, and 4-pyridylalk ylamino- or 4-pyridylmethoxy groups, N3P3(OC6H5)(5)(NHCH2(C5H4N-2)) (1 ), N3P3(OC6H5)5 .(NHCH2(C5H4N-3)) (2), N3P3(OC6H5)(5)(NHCH2(C5H4N-4)) (3) and N3P3(OC6H5)(5)(OCH2(C5H4N-4)) (4) are accessible through react ions of monochlorpentaphenoxycyclotriphosphaza-1,3,5-trien with aminom ethylpyridine or pyridyl methanolate. 1 does not react with mercury(II ) iodide whereas 2-4 yield the metal complexes 2 a, 3 a, and 4 a by in teractions of the pyridyl nitrogen atoms. The X-ray single crystal str ucture analyses of these compounds shows that 2a and 4a are dimers, wh ereas 3a is a HgI2 polymer with syndiotacticaly al-ranged ligands.