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Two kinds of complexes [AgCl(PPh3)(2)(BTZT)]center dot CH3OH (1) and [AgCl(PPh3)(2)(BTZT)](2) (2) were obtained by the reaction of AgCl, PPh3, and MBT in 1:2:1 molar ratio (PPh3=triphenylphosphine; MBT=2-mercaptobenzothiazole BTZT=benzothiazoline-2-thione) (2 has been reported). [AgBr(PPh3)(2)(BTZT)]center dot CH3OH (3) and [AgBr(PPh3)(2) (BTZT)](2) (4) were prepared in a manner similar to 1 and 2 using AgBr (4 has been reported). Complexes 1 and 3 have been characterized by IR, elemental analysis, H-1 NMR spectroscopy, fluorescence spectrum and single crystal X-ray diffraction. The MBT ligand can transform into the BTZT ligand in different chemical environment because of its chemically active groups. The luminescent spectra show that emission peaks of 1 and 3 are assigned to the ligand centered pi-pi* transition.
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