Construction of 3D Layer-Pillared Homoligand Coordination Polymers from a 2D Layered Precursor
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- 作者：Jinyu Sun ; Yaming Zhou ; Qianrong Fang ; Zhenxia Chen ; Linhong Weng ; Guangshan Zhu ; Shilun Qiu ; Dongyuan Zhao
- 刊名：Inorganic Chemistry
- 出版年：2006
- 出版时间：October 16, 2006
- 年：2006
- 卷：45
- 期：21
- 页码：8677 - 8684
- 全文大小：722K
- 年卷期：v.45,no.21(October 16, 2006)
- ISSN：1520-510X
文摘
Herein, we present a new method for preparing homoligand 3D coordination polymers. First, a layered metal-organic framework Zn3(BDC)3(H2O)2·4DMF 1 (BDC is terephthalate, DMF is N,N-dimethylformamide) was fabricatedfrom a H2BDC by liquid-liquid diffusion. Second, the layered product, 1, was used as a precursor to solvothermallyreact with further H2BDC at 140-180 
C, resulting in two products of BDC insertion into the layered structure.These are [Zn3(p-BDC)4]·2HPIP, 2 (HPIP is partly protonated piperazine), and [Zn3(p-BDC)3(H2BDC)]·(C6H15NO)·H2O·3DMF, 3 (C6H15NO is triethylamine N-oxide). Single-crystal X-ray diffraction shows that 2 possesses a layer-pillared structure of 
4-BDC, with 1D channels, while 3 has a layer-pillared structure of 2-BDC, with 2D channels.N2-sorption experiments show 3 has a relatively high BET surface area of 750 m2/g. It is proposed that 2 followsthe crystal growth mechanism of Ostwald ripening, whereas the crystal structure of 3 might be formed by aninsertion mechanism.
C, resulting in two products of BDC insertion into the layered structure.These are [Zn3(p-BDC)4]·2HPIP, 2 (HPIP is partly protonated piperazine), and [Zn3(p-BDC)3(H2BDC)]·(C6H15NO)·H2O·3DMF, 3 (C6H15NO is triethylamine N-oxide). Single-crystal X-ray diffraction shows that 2 possesses a layer-pillared structure of 4-BDC, with 1D channels, while 3 has a layer-pillared structure of 2-BDC, with 2D channels.N2-sorption experiments show 3 has a relatively high BET surface area of 750 m2/g. It is proposed that 2 followsthe crystal growth mechanism of Ostwald ripening, whereas the crystal structure of 3 might be formed by aninsertion mechanism.