Abstract
1,2-Diaminomaleodinitrile (HCN tetramer) is usu-ally considered as one of the key steps of chemicalevolution [1 4] on the pathway of transformation ofhydrogen cyanide into amino acids and heterocycles[4 6]. According to [7, 8], in simulation of biochem-ical processes, it is important to reveal noncovalentinteractions of relatively small molecules with cavity-containing structures, in particular, with crown ethers.The goal of this work was to examine the possibil-ity of preparing crystalline molecular complexes ofcrown ethers with 1,2-diaminomaleodinitrile and toreveal the selectivity of such host guest interactions.We found that spontaneous evaporation of solventsfrom solutions of crown ethers [benzo-15-crown-5,I;18-crown-6,II; benzo-18-crown-6,III; mixture ofcis,syn,cis (IV) and cis,anti,cis (V) isomers of dicyclo-hexano-18-crown-6] with 1,2-diaminomaleodinitrileVI results in crystalllization of molecular complexesVII X.
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