Journal ArticleDOI
Highly controlled acetylene accommodation in a metal–organic microporous material
Ryotaro Matsuda,Ryo Kitaura,Ryo Kitaura,Susumu Kitagawa,Yoshiki Kubota,Rodion V. Belosludov,Tatsuo C. Kobayashi,Hirotoshi Sakamoto,Takashi Chiba,Masaki Takata,Yoshiyuki Kawazoe,Yoshimi Mita +11 more
TLDR
High levels of selective sorption of acetylene molecules as compared to a very similar molecule, carbon dioxide, onto the functionalized surface of a MOM are reported.Abstract:
Metal-organic microporous materials (MOMs) have attracted wide scientific attention owing to their unusual structure and properties, as well as commercial interest due to their potential applications in storage, separation and heterogeneous catalysis. One of the advantages of MOMs compared to other microporous materials, such as activated carbons, is their ability to exhibit a variety of pore surface properties such as hydrophilicity and chirality, as a result of the controlled incorporation of organic functional groups into the pore walls. This capability means that the pore surfaces of MOMs could be designed to adsorb specific molecules; but few design strategies for the adsorption of small molecules have been established so far. Here we report high levels of selective sorption of acetylene molecules as compared to a very similar molecule, carbon dioxide, onto the functionalized surface of a MOM. The acetylene molecules are held at a periodic distance from one another by hydrogen bonding between two non-coordinated oxygen atoms in the nanoscale pore wall of the MOM and the two hydrogen atoms of the acetylene molecule. This permits the stable storage of acetylene at a density 200 times the safe compression limit of free acetylene at room temperature.read more
Citations
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Journal ArticleDOI
Control of interpenetration for tuning structural flexibility influences sorption properties.
Sareeya Bureekaew,Hiroshi Sato,Ryotaro Matsuda,Yoshiki Kubota,Raita Hirose,Jungeun Kim,Kenichi Kato,Masaki Takata,Susumu Kitagawa +8 more
Journal ArticleDOI
Direct space methods for powder X-ray diffraction for guest-host materials: applications to cage occupancies and guest distributions in clathrate hydrates.
TL;DR: It is demonstrated that the ab initio crystal structure determination methodology reported here is able to determine absolute cage occupancies and the dynamical disorder of guest molecules in clathrate hydrates from powdered crystalline samples.
Journal ArticleDOI
Separation of Acetylene from Carbon Dioxide and Ethylene by a Water-Stable Microporous Metal-Organic Framework with Aligned Imidazolium Groups inside the Channels.
Jaechul Lee,Chong Yang Chuah,Jaheon Kim,Youngsuk Kim,Nakeun Ko,Younggyu Seo,Kimoon Kim,Tae-Hyun Bae,Eunsung Lee +8 more
TL;DR: The selective sorption of acetylene over carbon dioxide and ethylene in JCM-1 was successfully demonstrated by equilibrium gas adsorption analysis as well as dynamic breakthrough measurement and its excellent hydrolytic stability makes the separation processes highly recyclable without a substantial loss in acetylene uptake capacity.
Journal ArticleDOI
Protein encapsulation within synthetic molecular hosts
Daishi Fujita,Kosuke Suzuki,Sota Sato,Maho Yagi-Utsumi,Maho Yagi-Utsumi,Yoshiki Yamaguchi,Nobuhiro Mizuno,Takashi Kumasaka,Masaki Takata,Masanori Noda,Susumu Uchiyama,Koichi Kato,Koichi Kato,Makoto Fujita +13 more
TL;DR: The encapsulation of a small protein, ubiquitin, within giant coordination cages self-assembled around the protein-encapsulated structure could be analysed by NMR spectroscopy, ultracentrifugation and X-ray crystallography.
Journal ArticleDOI
Chemistry and application of flexible porous coordination polymers
TL;DR: In this article, the chemistry and application of flexible crystalline polymers are summarized and discussed, and a review of their application in gas storage, gas separation and catalytic reaction is presented.
References
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