冠醚环化二硫烯双核Au(I)配合物的合成、结构及电化学性质

合成了含有冠醚环化二硫烯的双核Au(I)配合物[(30-C2S4)Au2(PPh3):](1),[(40-C2S4)Au2·(PPh3)2](2),[(30一C6-S8)Au2(Pph3)2](3)和[(40-C6-S8)Au2(PPh3)2](4)以及富硫配合物[(btdt)Au2·(PPh3)2](5).通过x射线...

Syntheses, Structures and Electrochemical Properties of Dinuclear Au(I) Complexes Including Crown Ether Annelated Dithiolate Ligands

A series of new gold(I) complexes containing crown ether annelated dithiolate ligands, [(3O-C2S4)Au2(PPh3)2] (1, 3O-C2S42?=1,4,7-trioxa-10,13-dithiacyclopentadec-11-ene-11,12-dithiolate), [(4O-C2S4)Au2(PPh3)2] (2, 4O-C2S42?=1,4,7,10-tetraoxa-13,16-dithiacyclooctadec-14-ene-14,15- dithiolate),[(3O-C6S8)Au2(PPh3)2] (3, 3O-C6S82?=2-{4,5-dithia-(3',6',9'-trioxaundecyl)-1,3-dithiol-2- ylidene}- 1,3-dithiol-4,5-dithiolate)), and [(4O-C6S8)Au2(PPh3)2] (4, 4O-C6S82?=2-{4,5-dithia-(3',6',9', 12'-tetr- aoxatetradecyl)-1,3-dithiol-2-ylidene}-1,3-dithiol-4,5-dithiolate); and the sulphur-rich dithiolate gold(I) complex [(btdt)Au2(PPh3)2] (5, btdt=benzotetrathiafulvalenedithiolate), have been prepared and characterized. The crystal structures of complexes 1-3 and 5 have been determined. Redox properties of these compounds have been investigated by cyclic voltammetry and complex 4 shows significant response for Na+ ions with a large positive shift of ca. 55 mV.