Crystalline-state guest-exchange and gas-adsorption phenomenon for a "soft" supramolecular porous framework stacking by a rigid linear coordination polymer.
A 1D rigid, linear coordination polymer, (4,4'-bipyridine)(2-pyridylsulfonate)copper, has been applied for the controlled-assembly of a new porous host that generates 1D channels by an interdigitated packing through the recognition of hydrogen bonding and pi-pi stacking interactions. The porous structure is architecturally robust when it reversibly uptakes water molecules and exchanges guest small molecules (MeOH, i-PrOH) from solution as determined by single-crystal-to-single-crystal transformation studies. Moreover, the open-channel solid displays irreversible benzene and toluene vapor sorption behaviors attributed to a widening of the channel cross-section that fetters the larger guest molecules, resulting from the dynamic, "soft" supramolecular framework.
Hu
Sheng
S
Key Laboratory of Medicinal Chemical Resources and Molecular Engineering, Department of Chemistry and Chemical Engineering, GuangXi Normal University, Guilin, P.R. China.
He
Kun-Huan
KH
Zeng
Ming-Hua
MH
Zou
Hua-Hong
HH
Jiang
Yi-Min
YM
D000327:Adsorption; D003300:Copper / Q000737:chemistry*; D018360:Crystallography, X-Ray; D005740:Gases / Q000737:chemistry*; D008956:Models, Chemical; D009942:Organometallic Compounds / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D016062:Porosity
C530899:(4,4'-bipyridine)(2-pyridylsulfonate)copper; D005740:Gases; D009942:Organometallic Compounds; D011108:Polymers; D003300:Copper