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Luminescent Amphiphilic 2,6‐Bis(1,2,3‐triazol‐4‐yl)pyridinePlatinum(II) Complexes: Synthesis, Characterization, Electrochemical, Photophysical, and Langmuir–Blodgett Film‐Formation Studies
Author(s) -
Li Yongguang,
Zhao Le,
Tam Anthony YiuYan,
Wong Keith ManChung,
Wu Lixin,
Yam Vivian WingWah
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201301788
Subject(s) - pyridine , platinum , chemistry , langmuir–blodgett film , electrochemistry , amphiphile , alkyl , ligand (biochemistry) , medicinal chemistry , stereochemistry , molecule , organic chemistry , copolymer , catalysis , electrode , biochemistry , polymer , receptor
A new series of platinum(II) complexes with tridentate ligands 2,6‐bis(1‐alkyl‐1,2,3‐triazol‐4‐yl)pyridine and 2,6‐bis(1‐aryl‐1,2,3‐triazol‐4‐yl)pyridine (N7R), [Pt(N7R)Cl]X ( 1 – 7 ) and [Pt(N7R)(CCR′)]X ( 8 – 17 ; R= n ‐C 4 H 9 , n ‐C 8 H 17 , n ‐C 12 H 25 , n ‐C 14 H 29 , n ‐C 18 H 37 , C 6 H 5 , and CH 2 ‐C 6 H 5 ; R′=C 6 H 5 , C 6 H 4 ‐CH 3 ‐ p , C 6 H 4 ‐CF 3 ‐ p , C 6 H 4 ‐N(CH 3 ) 2 ‐ p , and cholesteryl 2‐propyn‐1‐yl carbonate; X=OTf − , PF 6 − , and Cl − ), has been synthesized and characterized. Their electrochemical and photophysical properties have also been studied. Two amphiphilic platinum(II)2,6‐bis(1‐dodecyl‐1,2,3‐triazol‐4‐yl)pyridine complexes ( 3‐Cl and 8 ) were found to form stable and reproducible Langmuir–Blodgett (LB) films at the air/water interface. These LB films were characterized by the study of their surface‐pressure–molecular‐area (π–A) isotherms, XRD, and IR and polarized‐IR spectroscopy.