Du Dong-Ying, Qin Jun-Sheng, Sun Zhong, Yan Li-Kai, O'Keeffe Michael, Su Zhong-Min, Li Shun-Li, Wang Xiao-Hong, Wang Xin-Long, Lan Ya-Qian
Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China.
Sci Rep. 2013;3:2616. doi: 10.1038/srep02616.
A novel 3D hexadecanuclear heteropolyoxozincate organic framework, IFMC-200, has been successfully synthesized based on a late transition metal-oxygen cluster. IFMC-200 not only represents the first example of (3,4,24)-connected framework but also contains the first 24-connected single metal cluster in a crystal structure. It exhibits superior thermal stability, good water-stability, and even insensitivity to the existence of acid and base within a certain range of pH values. Furthermore, it performs as a heterogeneous crystalline Lewis acid catalyst with good activity for the conversion of long-chain fatty acids rather than short-chain ones, and high recycling efficiency for esterification reaction of fatty acids with alcohols to produce biodiesel.
基于一种后过渡金属 - 氧簇，成功合成了一种新型的三维十六核杂多氧锌酸盐有机框架IFMC - 200。IFMC - 200不仅代表了（3,4,24）连接框架的首个实例，还在晶体结构中包含首个24连接的单金属簇。它具有卓越的热稳定性、良好的水稳定性，甚至在一定pH值范围内对酸碱的存在不敏感。此外，它作为一种多相结晶路易斯酸催化剂，对长链脂肪酸而非短链脂肪酸的转化具有良好活性，并且在脂肪酸与醇酯化反应制备生物柴油中具有高循环效率。
