Design, Synthesis, Photophysics, and Anion-Binding Studies of Bis(dicyclohexylphosphino)methane-Containing Dinuclear Gold(I) Thiolate Complexes with Urea Receptors - He,X; Herranz,F; Cheng,EC-C; Vilar,R; Yam,VW-W (CHEMISTRY-A EUROPEAN JOURNAL, 2010)