2024-03-29T14:42:52Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/811982022-11-17T02:08:08Zhdl_2115_20057hdl_2115_148Gas sorption of nano-porous supramolecules formed by multi-hydrogen bonded coordination capsulesTadokoro, MakotoMachida, HironobuToyofuku, RyujiMurakami, MegumiKamebuchi, HajimeIsoda, KyosukeKobayashi, FumiyaTakahashi, KiyonoriNoro, Shin'ichiroNakamura, Takayoshi430[{Re-I(CO)(3)(Hbim)}(3)(tpta)](2) (1, Hbim(-) = 2,2'-biimidazolate monoanion, tpta = 2,4,6-tripyridyl-1,3,5-triazine) was prepared as a nano-space supramolecule by using a new group of H-bonded coordination capsules. The hamburger bun-shaped half unit [{Re-I(CO)(3)(Hbim)}(3)(tpta)] contains six intermolecular H-bonds of Hbim(-) ligands with complementary dual NH center dot center dot center dot N types, and three [Re-I(CO)(3)(Hbim)] are coordinated by bridging tridentate tpta. Interestingly, mechanical grinding easily would convert single crystals of 1 to an amorphous state with minor crystallinity while maintaining the nano-space pores. The ground sample can reversibly uptake and release small molecules such as CO2 and (CH2Cl)(2).Royal Society of ChemistryJournal Articlehttp://hdl.handle.net/2115/811981359-7345Chemical communications5718224922522021-03-04enginfo:doi/10.1039/d0cc07869gnone