metal-organic compounds
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The title half-sandwich rhodium(III) complex, [Rh(C10H15)(C7H7O3S)2(H2O)]·H2O, consists of a π-bonded pentamethylcyclopentadienyl group, two σ-bonded tosylate groups and an aqua ligand. The structure displays both inter- and intramolecular O—HO hydrogen bonding. The intermolecular hydrogen bonding results in an extended helical chain along a 21 screw axis parallel to c, due to hydrogen bonding from the coordinating water ligand to the lattice water molecule and then to a sulfonate O atom of a different asymmetric unit.