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A comparison of the receptor stereochemistry in [Pt(bipy)(NH<sub>3</sub>)<sub>2</sub>·dinaphtho-30-crown-10][PF<sub>6</sub>]<sub>2</sub>and [Diquat·dinaphtho-30-crown-10][PF<sub>6</sub>]<sub>2</sub>(bipy = 2,2′-bipyridine)
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1987
Year
X-ray CrystallographyInorganic ChemistryEngineeringBiochemistryNatural SciencesCoordination ComplexReceptor StereochemistryDiquat DicationReceptor (Biochemistry)Molecular BiologyMolecular ComplexStereoselective SynthesisChemistryCoulombic InteractionsCrystallography
X-Ray crystallography and 1H n.m.r. spectroscopy have revealed dramatic differences in the binding of [Pt(bipy)(NH3)2]2+ and [Diquat]2+ dications by dinaphtho-30-crown-10 (DN30C10) with the platinum complex adopting a slewed position, apparently in order to maximise overlap between the π-arene systems in the receptor and in the complex, whereas the Diquat dication adopts a symmetrical position more consistent with maximisation of Coulombic interactions.