TY - JOUR
T1 - Highly selective carbon dioxide uptake by [Cu(bpy-n) 2(SiF 6)] (bpy-1 = 4,4′-bipyridine; Bpy-2 = 1,2-bis(4-pyridyl)ethene)
AU - Burd, Stephen D.
AU - Ma, Shengqian
AU - Perman, Jason A.
AU - Sikora, Benjamin J.
AU - Snurr, Randall Q.
AU - Thallapally, Praveen K.
AU - Tian, Jian
AU - Wojtas, Lukasz
AU - Zaworotko, Michael J.
N1 - © 2012 American Chemical Society
PY - 2012/2/29
Y1 - 2012/2/29
N2 - A previously known class of porous coordination polymer (PCP) of formula [Cu(bpy-n) 2(SiF 6)] (bpy-1 = 4,4′-bipyridine; bpy-2 = 1,2-bis(4-pyridyl)ethene) has been studied to assess its selectivity toward CO 2, CH 4, N 2, and H 2O. Gas sorption measurements reveal that [Cu(bpy-1) 2(SiF 6)] exhibits the highest uptake for CO 2 yet seen at 298 K and 1 atm by a PCP that does not contain open metal sites. Significantly, [Cu(bpy-1) 2(SiF 6)] does not exhibit particularly high uptake under the same conditions for CH 4, N 2, and, H 2O, presumably because of its lack of open metal sites. Consequently, at 298 K and 1 atm [Cu(bpy-1) 2(SiF 6)] exhibits a relative uptake of CO 2 over CH 4 of ca. 10.5:1, the highest value experimentally observed in a compound without open metal sites. [Cu(bpy-2) 2(SiF 6)] exhibits larger pores and surface area than [Cu(bpy-1) 2(SiF 6)] but retains a high CO 2/CH 4 relative uptake of ca. 8:1.
AB - A previously known class of porous coordination polymer (PCP) of formula [Cu(bpy-n) 2(SiF 6)] (bpy-1 = 4,4′-bipyridine; bpy-2 = 1,2-bis(4-pyridyl)ethene) has been studied to assess its selectivity toward CO 2, CH 4, N 2, and H 2O. Gas sorption measurements reveal that [Cu(bpy-1) 2(SiF 6)] exhibits the highest uptake for CO 2 yet seen at 298 K and 1 atm by a PCP that does not contain open metal sites. Significantly, [Cu(bpy-1) 2(SiF 6)] does not exhibit particularly high uptake under the same conditions for CH 4, N 2, and, H 2O, presumably because of its lack of open metal sites. Consequently, at 298 K and 1 atm [Cu(bpy-1) 2(SiF 6)] exhibits a relative uptake of CO 2 over CH 4 of ca. 10.5:1, the highest value experimentally observed in a compound without open metal sites. [Cu(bpy-2) 2(SiF 6)] exhibits larger pores and surface area than [Cu(bpy-1) 2(SiF 6)] but retains a high CO 2/CH 4 relative uptake of ca. 8:1.
UR - http://www.scopus.com/inward/record.url?scp=84857737694&partnerID=8YFLogxK
U2 - 10.1021/ja211340t
DO - 10.1021/ja211340t
M3 - Article
C2 - 22316279
AN - SCOPUS:84857737694
SN - 0002-7863
VL - 134
SP - 3663
EP - 3666
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 8
ER -