Cobalt(II) and cadmium(II) compounds with adamantane-1-sulfonic acid

Abstract

In this work, the syntheses and characterization of two novel compounds of adamantane-1-sulfonic acid (1-AdSO3H) with cobalt(II) and cadmium(II) are reported. The results of single crystal X-ray analysis of the compounds revealed that adamantane-1-sulfonate (1-AdSO3-) in the monoanionic form plays different roles in the investigated compounds. Namely, while in compound [Co(H2O)6](1-AdSO3) 2, six water molecules are coordinated to the cobalt(II) ion and 1-AdSO3- serves as a counter ion, in compound [Cd(H 2O)4(1-AdSO3)2], two molecules of 1-AdSO3- are trans-coordinated to the cadmium(II) ion as a monodentate (O)-ligand and the other coordination sites are occupied by water molecules. The obtained compounds showed moderate activity against Artemia salina. © 2012 Copyright (CC) SCS.