Crystalline inorganic frameworks with 56-ring, 64-ring, and 72-ring channels.
The development of zeolite-like structures with extra-large pores (>12-membered rings, 12R) has been sporadic and is currently at 30R. In general, templating via molecules leads to crystalline frameworks, whereas the use of organized assemblies that permit much larger pores produces noncrystalline frameworks. Synthetic methods that generate crystallinity from both discrete templates and organized assemblies represent a viable design strategy for developing crystalline porous inorganic frameworks spanning the micro and meso regimes. We show that by integrating templating mechanisms for both zeolites and mesoporous silica in a single system, the channel size for gallium zincophosphites can be systematically tuned from 24R and 28R to 40R, 48R, 56R, 64R, and 72R. Although the materials have low thermal stability and retain their templating agents, single-activator doping of Mn(2+) can create white-light photoluminescence.
Department of Chemistry, Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu, Taiwan.
Hsin-Yau
HY
Lin
Chih-Yuan
CY
Chin
Hui-Lin
HL
Huang
Wen-Yen
WY
Huang
Ming-Jhe
MJ
Sie
Li-Hsun
LH
Huang
Yuan-Han
YH
Lee
Chia-Her
CH
Lin
Kwang-Hwa
KH
Lii
Xianhui
X
Bu
Sue-Lein
SL
Wang