Kevin J. Theriot

PREPARATION OF 2-SUBSTITUTED 8-QUINOLINOLS CONTAINING C, N, O-DONOR ATOMS AND ITS PDII OR PTII COMPLEXES

Abstract 2-Substituted 8-quinolinols possessing two- (4) or three- (6) carbon side chains have been prepared from 2-formyl-8-quinolinol. A carbanion, generated on the side chain, serves as the C-donor of the bonding triad. The complexation with PdII or PtII salts in the presence of pyridine, as an external ligand, afforded the desired neutral chelates having MC σ-bond as well as the 2:1 ML2 complex, possessing the intact methine proton. In the case of 6c possessing a pendant acetylacetonyl moiety, the 1H NMR spectrum suggested a predominance of the enol form, and upon complexation, the 2:1 ML2 complex was formed. Since these new ligands have three different hetero donor atoms, a novel palladium complex containing four different (C, N, O, P) coordinating sites, by the use of tri(n-butyl)phosphine as an external ligand, was prepared.

Synthesis of Metal Paddlanes: X-Ray Structure Determination of Bis-(methyl nicotinate)copper(II) Acetate Dimer.

Abstract The synthesis of nicotinic acid based N,N′-bidentate ligands capable of spanning the axial sites of copper(II) acetate dimer are reported. Reaction of these ligands with [Cu(C2H302)2]2·2H20 gave the 1:1 adduct: a metal paddlane, which on recrystallization from MeOH/CHCl3 yielded the trans-esterified complex [Cu(C2H3O2)2]2·2C7H7N02, 3. A single crystal X-ray structure determination of 3 is presented.

Dipyridinium bis(hydrogen oxalate)-oxalic acid

CsH6N+.2C2HO

Cascade molecules. Part 6. Synthesis and characterization of two-directional cascade molecules and formation of aqueous gels

.C 2H204, M r= 428-4, monoclinic, P21/n, a=3.725 (1), b=8.908 (2), c= 26.842(4)A, B=92.94(2) o, I/=889.5(6)A 3, Z=2,