Abstract
The new di-platinum(II) thiolato-bridged complexes [(dppp)Pt{micro-S(CH(2))(n)NHC([double bond, length as m-dash]O)NHR}](2)(OTf)(2) (n = 2, 3; R = Et, Ph) have been synthesized. The X-ray crystal structures of three of these complexes have confirmed their formulation and highlighted the ability of the urea groups on the thiolato bridges to display hydrogen bonding interactions with anions. The binding of anions by these receptors has been quantitatively determined by (1)H NMR spectroscopy and in a qualitative fashion by indicator displacement assays. These studies have shown the receptors to be selective for inorganic phosphate. In addition we have isolated and structurally characterized an unusual 1D coordination polymer with formula {[(dppp)Pt{micro-S(CH(2))(2)NHC([double bond, length as m-dash]O)NHR}][Pb(2)Cl(6)]}(n). The X-ray crystal structure of this inorganic polymer has shown that it consists of units of the di-platinum-thiolato cations bridged by [Pb(2)Cl(6)](2-) moieties.
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