Postsynthetic Modification of a Metal-Organic Framework for Stabilization of a Hemiaminal and Ammonia Uptake

被引：195

作者：

Morris, William ^{[1
]}

Doonan, Christian J. ^{[1
,2
]}

Yaghi, Omar M. ^{[1
,3
]}

机构：

[1] Univ Calif Los Angeles, Ctr Reticular Chem, Ctr Global Mentoring, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA

[3] Korea Adv Inst Sci & Technol, Grad Sch EEWS, Taejon 305701, South Korea

来源：

INORGANIC CHEMISTRY | 2011年 / 50卷 / 15期

关键词：

FUNCTIONALIZATION;

D O I：

10.1021/ic200744y

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In our study, we show by solid-state N-15 NMR measurements that an important zirconium metal-organic framework (UiO-66) with amino-functionalized links is composed of a mixture of amino and -NH3+Cl- salt functionalities rather than all amino functionality to give a composition of Zr6O4(OH)(4)(BDC-NH2)(4)(BDC-NH3+Cl-)(2) (UiO-66-A). UiO-66-A was postsynthetically modified to form a mixture of three functionalities, where the hemiaminal functionality is the majority species in UiO-66-B and aziridine is the majority functionality in UiO-66-C. UiO-66-A-C are all porous with surface areas ranging from 780 to 820 m(2)/g and have chemical stability, as evidenced by reversible ammonia uptake and release showing capacities ranging from 134 to 193 cm(3)/g.

引用

页码：6853 / 6855

页数：3

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