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Start Over Author "Zhang, Youjuan" Publisher elsevier bv
7 results on '"Zhang, Youjuan"'

3. Transformation of dense AgI into a silver-rich framework iodide using thiophenol as mineralizer

Author

Renchun Zhang, Daojun Zhang, Bao-Hua Pei, Baiqing Yuan, Jun-Peng Miao, Pan-Pan Liu, Zhang Youjuan, and Jun-Jie Wang

Subjects
chemistry.chemical_classification, Diffuse reflectance infrared fourier transform, Thiophenol, Iodide, Solvothermal synthesis, Inorganic chemistry, DABCO, Condensed Matter Physics, Fluorescence spectroscopy, Electronic, Optical and Magnetic Materials, Inorganic Chemistry, chemistry.chemical_compound, Crystallography, chemistry, X-ray crystallography, Materials Chemistry, Ceramics and Composites, Physical and Theoretical Chemistry, Spectroscopy
Abstract

A new three-dimensional framework iodide, (DabcoH)2[(Dabco)2Ag14I16] (1), was solvothermal synthesized by transformation of dense AgI using p-methylthiophenol as mineralizer, and characterized by elemental analysis, single-crystal and powder X-ray diffraction, thermogravimetric analysis, differential scanning calorimetry analysis, UV–vis diffuse reflectance spectroscopy and fluorescence spectroscopy. Compound 1 crystallizes in the trigonal space group R-3c, a=13.4452(2) A, c=63.725(2) A, V=9976.5(4) A3, Z=6. It features a 3D silver-rich [(Dabco)2Ag14I16]2− anionic framework built up from corner-sharing of hybrid [(Dabco)2Ag14I19]5− clusters, with protonated DabcoH+ as counterions residing in the channels. UV–vis reflectance spectroscopy reveals the band gap of 1 is 3.3 eV. Compound 1 exhibits a strong photoluminescent emission band at 567 nm upon excitation at 489 nm.

Published
2014

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