期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 10, 期 21, 页码 5535-5540出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.200400178
关键词
adsorption; benzene templates; host-guest systems; hydrothermal synthesis; metal-organic frameworks
In this paper, we report two metal-organic frameworks [Co-3(ndc)(2)(bipyen)(1.5)](H2O)-H-. (1) and [Co-2(ndc)(2)(bipyen)](C6H6H2O)-C-.-H-. (2) (bipyen-trans-1,2-bis(4-pyridyl)ethylene, H(2)ndc=2,6-naphthalenedicarboxylic acid). These compounds were both synthesized from identical hydrothermal reaction conditions except that benzene was added to the reaction for 2. Crystal structures show that the two compounds have triply interpenetrated three-dimensional frameworks and these frameworks have the same primary structure of a two-dimensional network of interconnected [Co-2(O2CR)(4/2)] (R = naphthalene group) paddle-wheels and bridging bipyen ligands. Both compounds have guest water molecules and, in addition, 2 has guest benzene molecules. Structural transformations of the host accompanied guest removal, which can be monitored by powder X-ray diffraction. N-2 adsorption data of 2 show that there are two different types of pores corresponding to the benzene and water pores. Upon exposure to vapors of several organic molecules, the heat-treated sample of 2 adsorbs benzene and cyclohexene, but does not adsorb toluene, (o-, m-, and p-)xylenes, cycloheptatriene, or cyclohexane.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据