The Library
Preparation, structural diversity and characterization of a family of Cd(ii)–organic frameworks
Tools
Deng, Ye, Hou, Chuan-Tao, Walton, Richard I., Tang, Jiaqian, Zhu, Peizhi, Zhang, Kou-Lin and Ng, Seik Weng (2013) Preparation, structural diversity and characterization of a family of Cd(ii)–organic frameworks. Dalton Transactions, Volume 42 (Number 34). pp. 12468-12480. doi:10.1039/c3dt51118a ISSN 1477-9226.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1039/c3dt51118a
Abstract
Two Cd(ii)-organic frameworks based on 5-iodoisophthalate (IIP 2-), {[Cd(IIP)(bte)(H2O)]·H2O} n (1) and [Cd(IIP)(bpp)(H2O)]n (2), were obtained either at an ambient temperature or under solvothermal conditions at 120°C in the presence of 1,4-bis(1,2,4-triazol-1-yl)ethane (bte) and 1,3-bis(4-pyridyl)propane (bpp) as auxiliary ligands, respectively. 1 is a novel discrete single-walled Cd(ii)-organic tube (SWCOT) which further extends into a 3D supramolecular interdigitated microporous columnar architecture supported by C-I⋯I halogen bonds and hydrogen bonds, while 2 exhibits an interesting two-fold interpenetrated 3D diamond network architecture. When the auxiliary ligands bte or bpp were replaced by a longer spacer ligand with more flexibility, 1,4-bis(triazol-1-ylmethyl)benzene (bbtz), the unique discrete single-walled Cd(ii)-organic nanotube (SWCONT), {[Cd(IIP)(bbtz)(H 2O)]·H2O}n (3), which further extends into a 3D supramolecular microporous framework supported by face-to-face π⋯π stacking interactions and hydrogen bonds, was generated at room temperature. Under solvothermal conditions at 120°C, an interesting two-fold 2D "embracing" (4,4) topological network, [Cd(IIP)(bbtz)(H2O)] (4), which further extends into a two-fold 3D "embracing" supramolecular framework through O-H⋯O hydrogen bonds, is obtained. 4 loses crystallinity in air, leading to the formation of [Cd(IIP)(bbtz)]·0.5H2O (4A) evidenced by elemental analysis, thermogravimetric analysis (TGA) and powder X-ray diffraction (PXRD). Remarkably, in situ rapid and reversible dehydration-rehydration in static air occurs in 1-3, indicating their potential applications as water absorbent and sensing materials. Dehydrated 1 and 3 show selective gas adsorption of CO 2 over N2 and dehydrated 3 can adsorb methanol and ethanol vapors strongly. These compounds exhibit blue fluorescence in the solid state.
Item Type: | Journal Article | ||||
---|---|---|---|---|---|
Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
Journal or Publication Title: | Dalton Transactions | ||||
Publisher: | Royal Society of Chemistry | ||||
ISSN: | 1477-9226 | ||||
Official Date: | 6 June 2013 | ||||
Dates: |
|
||||
Volume: | Volume 42 | ||||
Number: | Number 34 | ||||
Page Range: | pp. 12468-12480 | ||||
DOI: | 10.1039/c3dt51118a | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |