Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/27797
Title: Luminescent metal complexes containing naphthalene and anthracene units
Authors: XU HUAN
Keywords: 1, 8-naphthalenedithiolate;1,8-bis(diphenylphosphino)anthracene; Luminescent; photooxidation; singlet oxygen; endoperoxide
Issue Date: 10-Feb-2006
Source: XU HUAN (2006-02-10). Luminescent metal complexes containing naphthalene and anthracene units. ScholarBank@NUS Repository.
Abstract: In this study, the synthesis and characterization of coordination complexes with d10 metals and 1,8-naphthalenedithiolate (NS22-) and the d8 metals with 1,8-bis(diphenylphosphino)anthracene (DAP) were demonstrated. Tetranuclear [Cu4(I?2-dppm)3(I?2-I?2-NS2)( I?2- I?4-NS2)] and pentanuclear [Cu5(I?2-dppm)4(I?3- I?3-NS2)2]a??PF6 were synthesized from the reaction between NS22- and [Cu2(I?2-dppm)2(CH3CN)2]a??(PF6)2 for 0.5 and 4 hours respectively. Reactions of NS22- with different Au(I)/Au(III) starting materials gave three Au(I) complexes and one Au(III) complex. All the d10 metal complexes are emissive in the fluid solution. The complexes Pt(DAP)X (X=Cl, Br and I), Pt(DAP)(Ca?!CPh) and Pd(DAP)Cl were obtained. All complexes are emissive in solution and the solid state. Complexes PtDAPCl (4.1) and Pt(DAP)(Ca?!CPh) (4.4) can react with oxygen irradiated by light and the luminescence decreases rapidly. The mechanism of photolysis is supported by UV and NMR spectroscopy and the photoproduct structures were verified by X-ray crystallography, ESI and NMR spectroscopy. PtDAPCl (4.1) also can be oxygenated to Pt(IV) by deuterated chloroform.
URI: http://scholarbank.nus.edu.sg/handle/10635/27797
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