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RESEARCH PRODUCT
Coordination nano-space as stage of hydrogen ortho–para conversion
Takashi KosoneMasaki TakataSusumu KitagawaJosé Antonio RealYoshiki KubotaAkihiro HoriMasaaki OhbaHiroshi TanakaKenichi KatoAkio MishimaEiji NishiboriJungeun Kimsubject
196Materials scienceHydrogenPyrazine1002chemistry.chemical_elementCatalysissymbols.namesakechemistry.chemical_compoundhydrogen storage porous coordination polymerElectric fieldNano-Moleculelcsh:ScienceMultidisciplinaryCharge density39hydrogen storage porous coordination polymer; structure of absorbed H-2; ortho-para conversion56ChemistrychemistrysymbolsPhysical chemistrylcsh:Qstructure of absorbed H2ortho–para conversionRaman spectroscopyResearch Articledescription
The ability to design and control properties of nano-sized space in porous coordination polymers (PCPs) would provide us with an ideal stage for fascinating physical and chemical phenomena. We found an interconversion of nuclear-spin isomers for hydrogen molecule H 2 adsorbed in a Hofmann-type PCP, {Fe(pz)[Pd(CN) 4 ]} (pz=pyrazine), by the temperature dependence of Raman spectra. The ortho (o)–para (p) conversion process of H 2 is forbidden for an isolated molecule. The charge density study using synchrotron radiation X-ray diffraction reveals the electric field generated in coordination nano-space. The present results corroborate similar findings observed on different systems and confirm that o–p conversion can occur on non-magnetic solids and that electric field can induce the catalytic hydrogen o–p conversion.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-07-01 | Royal Society Open Science |