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A novel polyazacyclophane hexa-amine (1) has been designed, synthesized and characterized by X-ray crystallography, 1 H NMR and fluorescence spectroscopy. 1 has the structural shape and disposition of charges complementary to the major groove of B-DNA. Acid dissociation constants for the protonated 1 were pK a1 (D) = 4.8 and pK a2 (D) = 8.5. Equilibrium constants...
The solution structure of a 1:1 complex of zinc tren-microgonotropen-b {6b:Zn(II)} with d(CGCAAATTTGCG) 2 has been determined by 2D nuclear Overhauser effect 1 H NMR spectroscopy and restrained molecular modeling. The exchangeable and nonexchangeable proton resonances of d(CGCA 3 T 3 GCG) 2 :6b:Zn(II) indicate that the Zn(II) is interacting in the A+T-rich region...
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