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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Cu(I) 3,5-Diethyl-1,2,4-Triazolate (MAF-2): From Crystal Engineering to Multifunctional Materials
TL;DR: In this paper, the crystal engineering, structures, and diversified properties of Cu(I) 1,2,4-triazolates are discussed, particularly focusing on the porous coordination polymer [Cu(detz] (MAF-2, Hdetz = 3,5-diethyl-1, 2,4,4)-triazole, showing unique/multimode flexibility, high hydrophobicity, bright phosphorescence, and exceptionally high stabilities toward not only guest change but also water and oxygen.
Journal ArticleDOI
Trapping of a spatial transient state during the framework transformation of a porous coordination polymer.
Mio Kondo,Shuhei Furukawa,Kenji Hirai,Takaaki Tsuruoka,Julien Reboul,Hiromitsu Uehara,Stéphane Diring,Yoko Sakata,Osami Sakata,Susumu Kitagawa +9 more
TL;DR: The structural nature of the spatial transient state, in which two different but correlated framework structures, an original phase and a deformed phase, simultaneously exist in one crystal, is elucidated.
Journal ArticleDOI
Ln-Co-based rock-salt-type porous coordination polymers: vapor response controlled by changing the lanthanide ion.
TL;DR: These three Ln-Co-based PCPs have similar rock-salt types and highly symmetrical porous structure and show a reversible structural collapse-regeneration accompanied by water-vapor desorption-adsorption.
Journal ArticleDOI
Systematic structural control of multichromic platinum(II)-diimine complexes ranging from ionic solid to coordination polymer
TL;DR: Combination analysis of powder X-ray diffraction, thermogravimetry, and IR spectroscopy suggests that the dimensionality of the coordination network contributes considerably to both the structural flexibility and luminescence properties; that is, the low-dimensional flexible coordination network formed in MPt-4 complexes with smaller alkaline-earth metal ions enables a structural rearrangement induced by thermal and mechanical stimuli and vapour adsorption.
Journal ArticleDOI
Direct observation of supramolecular binding of light hydrocarbons in vanadium(iii) and (iv) metal-organic framework materials.
Zhenzhong Lu,Zhenzhong Lu,Harry G. W. Godfrey,Ivan da Silva,Yongqiang Cheng,Mathew Savage,Pascal Manuel,Svemir Rudić,Anibal J. Ramirez-Cuesta,Sihai Yang,Martin Schröder +10 more
TL;DR: In this paper, a modification of hydrogen bonding and its effect on guest binding in a pair of redox-active metal-organic frameworks (MOFs) is reported, and the role of the hydroxyl groups, O-carboxylate centres and π-π interactions in the supramolecular binding of C2 hydrocarbons in these materials has been determined using neutron diffraction and inelastic neutron scattering, coupled with DFT modelling.
References
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