Storage and sorption properties of acetylene in jungle-gym-like open frameworks

Daisuke Tanaka, Masakazu Higuchi, Satoshi Horike, Ryotaro Matsuda, Yoshinori Kinoshita, Nobuhiro Yanai, Susumu Kitagawa

Research output: Contribution to journalArticlepeer-review

77 Citations (Scopus)


The acetylene-sorption properties of six porous coordination polymers (PCPs), [M2(L)2(dabco)]n (dabco=1,4- diazabicyclo[2.2.2]octane, M=Cu2+ (1), Zn2+ (2), L=1,4-benzenedicarboxylate (bdc; 1a, 2a), 1,4-naphthalenedicarboxylate (ndc; 1b, 2b), 9,10-anthracenedicarboxylate (adc; 1c, 2c)), were investigated. The acetylene sorption isotherms of 1 and 2 measured at 195 K are of type I and show a steep increase at low relative pressures. The sorption properties of carbon dioxide at 195 K were also investigated. Compounds 1 and 2 showed a large difference in onset pressure between acetylene sorption isotherms, although the difference between the carbon dioxide sorption isotherms is not so significant. In particular, 2c displayed a remarkable affinity for acetylene. The acetylene sorption isotherm at 298 K showed that the adsorption amounts for 2c and 2b at 298 K, 1 atm (101 and 106 mLg-1, respectively) were higher than those of other conventional porous materials. Notably, of the compounds 1 and 2, the porous crystals 2c had the highest affinity for acetylene.

Original languageEnglish
Pages (from-to)1343-1349
Number of pages7
JournalChemistry - An Asian Journal
Issue number8-9
Publication statusPublished - Sept 1 2008
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Biochemistry
  • Organic Chemistry


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