title: Single-walled polytetrazolate metal-organic channels with high density of open nitrogen-donor sites and gas uptake.
abstract: The self-assembly between zinc dimer and 1,3,5-tris(2H-tetrazol-5-yl)benzene (H(3)BTT), promoted by a urea derivative, leads to a highly porous 3D framework with a large percentage (67%) of N-donor sites unused for bonding with metals. The material exhibits high gas storage capacity (ca. 1.89 wt % H(2) at 77 K and 1 atm; 98 cm(3)/g CO(2) at 273 K and 1 atm), even in the absence of open metal sites. The high percentage of open N-donor sites, coupled with the low framework density resulting from single-walled channels, is believed to contribute to the high uptake capacity.
authors.affiliation: Department of Chemistry, University of California, Riverside, California 92521, USA.
authors.forename: Qipu
authors.initials: Q
authors.lastname: Lin
authors.forename: Tao
authors.initials: T
authors.lastname: Wu
authors.forename: Shou-Tian
authors.initials: ST
authors.lastname: Zheng
authors.forename: Xianhui
authors.initials: X
authors.lastname: Bu
authors.forename: Pingyun
authors.initials: P
authors.lastname: Feng