Abstract
Trinuclear Ni 3S 4N 3 clusters were obtained from (1 S,2 S)-1-monothiasulfato-1-phenyl-2-(methylammoniumyl)propane (tpmp). Three homochiral ligand molecules together with three Ni II ions give rise to a cone-shaped cluster topped by a μ 3-sulfide ion. Each Ni II is in a distorted planar geometry. X-ray structural studies showed that in three cases the three phenyl groups form the rim of a cage which contains R-OSO 3 (R=C 2H 5, C 3H 7) or nitrate anions. The alkyl sulfates were generated during the synthesis reaction, and are hydrogen-bonded through the oxygen atoms to the amine nitrogen atoms. The corresponding compound with the methyl sulfate anion (MeOSO 3) reacts with Fe III nitrate to form a similar compound in which the nitrate anion occupies the cavity and its crystals were analyzed by X-ray diffraction.
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