Bis(4-[N,N-bis(2-cyanoethyl)amino]pyridine-kappaN(1))silver(I) perchlorate, with the perchlorate anion located in the cation cavity.

The title complex, bis[3,3'-(pyridine-4-imino-kappaN(1))dipropanenitrile]silver(I) perchlorate, [Ag(CEAP)(2)]ClO(4) (CEAP is 4-[N,N-bis(2-cyanoethyl)amino]pyridine, C(11)H(12)N(4)), has been prepared and characterized. The unit cell consists of two crystallographically non-equivalent molecules. Cation cavities are constructed by [Ag(CEAP)(2)](+) cations through hydrogen bonds, and the ClO(4)(-) anions are incorporated into the cavities in mu(4)- and mu(2)-ClO(4)(-) bridging modes through C-H.O hydrogen bonds.