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Synthesis, Characterization and Two‐Photon Absorption Properties of a Novel Pyridinium Salt
Author(s) -
Hao FuVinga,
Shi PengFei,
Liu HuiJun,
Wu JieMng,
Yang JiaXiang,
Tian YuPeng,
Zhou GuangYong,
Jiang MinHuk,
Kun Hoong Fun,
Suchada Chantraptomma
Publication year - 2004
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20040220408
Subject(s) - pyridinium , chemistry , iodide , absorption (acoustics) , two photon absorption , photochemistry , salt (chemistry) , fluorescence , spectroscopy , characterization (materials science) , energy conversion efficiency , proton nmr , laser , inorganic chemistry , medicinal chemistry , organic chemistry , optoelectronics , optics , physics , quantum mechanics
A novel pyridinium salt, 2,4‐bis[ p ‐( N,N ‐dimethylamino)styryl]‐ N ‐methyl pyridinium iodide (BMSPI) was synthesized and characterized by TG, 1 H NMR spectroscopy and elemental analysis. and the reaction process was studied by Using ES‐MS. When BMSPI was pumped by a pulsed 1064 nm, 50 ps laser him. it manifests highly efficient TPA (Two‐Photon Absorption) and up‐conversion superradiance. The up‐conversion efficiency was 6.0% at the pump energy of 4–6 mJ and the Lifetime of two‐photon fluorescence was measured as 59 ps.