Polymeric, Molecular and Ionic Organotin Complexes Containing Hypoxanthine, Adenine and 2-Aminopurine. Synthesis and Supramolecular Structures

摘要

The reaction of L1H [L1H = 3-(N9-hypoxanthyl)propanoic acid] with Me3SnCl or (n-Bu3Sn)(2)O afforded the 1D coordination polymers [Me3Sn(L1)](n) (1) and [n-Bu3Sn(L1)](n) (2), respectively. A similar reaction between L2H [3-{N9-(2-aminopurinyl)}propanoic acid] with (Ph3Sn)(2)O in a 2:1 ratio afforded a dimer [(L-2)(Ph3Sn)L-2{Ph3Sn(H2O)}]center dot 3CH(3)OH center dot 3H(2)O (3). The reactions of 2-(N9-adeninyl)acetic acid (L3H) and 3-(N9-adeninyl)propanoic acid (L4H) with (Ph3Sn)(2)O in a 2:1 ratio afforded insoluble intractable products, which, upon addition of dilute HCl in methanol, afforded [{Ph2SnCl3(H2O)}(HL3Me)(2)Cl]center dot H2O (4) and [(Ph2SnCl4)(HL4Me)(2)] (5). Complexes 1-5 show an extensive supramolecular organization in the solid state as a result of several intermolecular interactions, prominent among which are the interactions between the nucleobases.