𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The Size-Dependence of 1,5-Diphenyl-3-naphthyl-2-pyrazoline Nanocrystals

✍ Scribed by Hong-Bing Fu; Xue-Hai Ji; Xiao-Hong Zhang; Shi-Kang Wu; Jian-Nian Yao

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
102 KB
Volume
220
Category
Article
ISSN
0021-9797

No coin nor oath required. For personal study only.

✦ Synopsis

Diphenyl-3-naphthyl-2-pyrazoline nanocrystals with different sizes from 400 to 20 nm were prepared by the reprecipitation method. As the nanocrystal size decreased, the nanocrystal absorption peak was observed to shift to high-energy side due to size effect, and in the same period the peak shape changed from asymmetric to symmetric due to the gradual disappearance of the aggregate absorption.

πŸ“œ SIMILAR VOLUMES

3-(4-FluoroΒ­phenΒ­yl)-1,5-diphenyl-2-pyra
3-(4-FluoroΒ­phenΒ­yl)-1,5-diphenyl-2-pyrazoline
✍ Guo, Huan-Mei ;Jian, Fang-Fang ;Zhou, Li-You ;Zhao, Pu-Su ;Zheng, Jian πŸ“‚ Article πŸ“… 2006 πŸ› International Union of Crystallography 🌐 English βš– 195 KB

The title compound, C 21 H 17 FN 2 , crystallizes with two independent molecules in the asymmetric unit. The pyrazoline and 4-fluorophenyl rings are planar. The phenyl ring at the 5position and the pyrazoline heterocycle are almost perpendicular.