Citation: Yu Qiu GONG, Hong Liang SUN. THE INTRAMOLECULAR AROMATIC-RING STACKING INTERACTION OF MIXED LIGAND PALLADIUM(Ⅱ) COMPLEXES Ⅲ.STUDIES ON THE Pd²⁺-A-UTP^4- SYSTEMS BY ¹HNMR[J]. Chinese Chemical Letters, ;1991, 2(7): 593-594. shu

THE INTRAMOLECULAR AROMATIC-RING STACKING INTERACTION OF MIXED LIGAND PALLADIUM(Ⅱ) COMPLEXES Ⅲ.STUDIES ON THE Pd²⁺-A-UTP^4- SYSTEMS BY ¹HNMR

Department of Chemistry Hangzhou University Hangzhou 310028

Received Date: 22 April 1991

Fund Project: Project was supported by the National Natural Science Foundation of China,

The intramolecular aromatic-ring stacking interaction of mixedligand complex Pd(A)(UTP)^2- in the system pd²⁺-A-UTP^4- has been determined by ¹HNMR, where A=1, 10-phenanthroline(phen), 2, 2'-bipyridyl(bpy)and DL-tryptophan(trp^-);UTP^4-=uridine 5-triphosphate.The result indicates that it is the partial stacking between the uracil ring of UTP^4- and the heterocyclic ring of A that makes H(5), H(6) and H(1') in the UTP^4- shift upfield significantly.Accordingly, the order of aromaticring interaction in the mixedligand complex has been obtained as follows:Pd(phen)(UTP)^2- > Pd(bpy)(UTP)^2- > Pd(trp)(UTP)^3-.
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