A selective colorimetric Hg2+ probe featuring a styryl dithiaazacrown containing platinum (II) terpyridine complex through modulation of the relative strength of ICT and MLCT transitions.
A series of platinum(II) terpyridine complexes featuring an aminostilbene donor-acceptor framework was synthesized. The complex with a dithiaazacrown moiety exhibits a highly sensitive and selective colorimetric response to a Hg(2+) cation through modulation of the relative strength of ICT and MLCT transitions. The results from (1)H NMR titration suggest the existence of a weak Pt(II)···Hg(II) metallophilic interaction at low Hg(2+) concentration.
Institute of Chemistry, Academia Sinica, Taipei, Taiwan, Republic of China.
Sung-Kuang
SK
Chung
Yong-Ren
YR
Tseng
Chan-Yu
CY
Chen
Shih-Sheng
SS
Sun
D003124:Colorimetry / Q000379:methods*; D008628:Mercury / Q000032:analysis*; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D010984:Platinum / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*; D013237:Stereoisomerism; D013267:Stilbenes / Q000737:chemistry
D009942:Organometallic Compounds; D011725:Pyridines; D013267:Stilbenes; D010984:Platinum; D008628:Mercury