CO2 selective 1D double chain dipyridyl-porphyrin based porous coordination polymers
- Authors
- Kim, Hyun-Chul; Lee, Young Sun; Huh, Seong; Lee, Suk Joong; Kim, Youngmee
- Issue Date
- 2014
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- DALTON TRANSACTIONS, v.43, no.15, pp.5680 - 5686
- Indexed
- SCIE
SCOPUS
- Journal Title
- DALTON TRANSACTIONS
- Volume
- 43
- Number
- 15
- Start Page
- 5680
- End Page
- 5686
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/100994
- DOI
- 10.1039/c3dt53287a
- ISSN
- 1477-9226
- Abstract
- Thermal reactions of MnCl(DPyP) (DPyP = 5,15-di(4-pyridyl)-10,20-diphenylporphyrin) as a metalloligand with Co-II and Zn-II ions in dimethylformamide led to neutral one-dimensional (1D) double chain dipyridyl-porphyrin-based porous coordination polymers (PCPs), Co-3(DPyP)(3)center dot 4DMF (I) and Zn-3(DPyP)(3)center dot 2DMF center dot 4H(2)O (II). Both PCPs were structurally characterized by X-ray crystallography. Particularly, the central Mn-III ion in MnCl(DPyP) was transmetallated with Co-II or Zn-II ions and the central Co-II or Zn-II ions were further coordinated to pyridyl groups of neighboring M(DPyP) (M = Co or Zn) porphyrin complexes. PCPs I and II are isostructural and each 1D double chain interacts with another 1D double chain by multiple hydrogen bonding to stabilize the resulting framework. Therefore, solvent-free 1D double chain PCPs have permanent porosity, and the void volumes of the solvent-free I and II are calculated to be 22.6% and 23.0%, respectively. Gas sorption analysis indicated that I and II exhibited selective adsorption of CO2 at 196 K. Both PCPs exhibited much smaller sorption abilities for N-2 (77 K), H-2 (77 K), and CH4 (196 K) than CO2 (196 K). Both PCPs exhibited different PXRD patterns when dried at 373 K, which indicated that the frame-work transformation of the isostructural M-3(DPyP)(3) type of PCPs strongly depended on the type of central metal ions.
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