STEREOCHEMISTRY OF URANYL COMPLEXES OF NEW HETEROCYCLIC NITROGEN-CONTAINING ALDEHYDES .1. NOVEL RELATIONSHIP FOR O-U-O FREQUENCIES CENTER

New series of uranyl complexes derived from 7-formyl-8-hydroxy quinoli ne with hydrazine hydrate (HL1), methyl hydrazine (HL2), 1,2-diaminoet hane (HL3), 1,2-diaminobenzene (HL4) and 2-aminopyridine (HL5) have be en prepared and characterized by elemental analyses, (H-1 NMR and C-13 NMR, electronic and vibrational spectra) and different physical techn iques. The magnetic and spectral data suggest a distorted octahedral s tructure for all complexes. The labile EtOH molecule in compounds (5), (7) and (9) is equatorially bonded to the uranium ion and its hydroge n is bonded to the axial oxygen of the uranyl moiety. The ligands cont ain intramolecular hydrogen bonds. The FU-O(mydn/A(o)) and the bond le ngth RU-O(A(o)) of the bond were calculated from the IR data. Ln the p resent work it has been proposed a novel relationship between symmetri c ''nu(1)'' and asymmetric ''nu(3)'' O-U-O frequencies independent on the masses of oxygen (Mo) and uranium (Mu) atoms.