TY - JOUR
T1 - Discrepant gas adsorption in isostructural heterometallic coordination polymers
T2 - Strong dependence of metal identity
AU - Huang, Sheng Li
AU - Zhang, Long
AU - Lin, Yue Jian
AU - Jin, Guo Xin
PY - 2013/1/7
Y1 - 2013/1/7
N2 - Two isostructural porous 3d-4d materials [M(cyclam)Pd(2,4-pydc) 2·4H2O]n (2,4-H2pydc = pyridine-2,4-dicarboxylate acid) (1, M = Ni and 2, M = Zn) and five other isostructural complexes {[M′(cyclam)]2[M(2,5-pydc) 3]·xH2O}n (2,5-H2pydc = pyridine-2,5-dicarboxylate acid) (3, M = Co, M′ = Ni; 4, M = M′ = Ni; 5, M = Zn, M′ = Ni; 6, M = Ni, M′ = Zn and 7, M = M′ = Zn) were synthesized. Both complexes 1′ and 2′ show high selective CO2 capture over CH4 and N2. The comparisons of different gas sorption properties between 1′ and 2′ strongly suggest that metal identity has a great influence on the polarity of frameworks, but just the polar molecules respond to the polarity changes of different frameworks. The comparisons of CO2 sorption properties between five other isostructural complexes 3′-7′ also strongly suggest that metal identity has great influence on polarity of frameworks and further the CO 2 uptake.
AB - Two isostructural porous 3d-4d materials [M(cyclam)Pd(2,4-pydc) 2·4H2O]n (2,4-H2pydc = pyridine-2,4-dicarboxylate acid) (1, M = Ni and 2, M = Zn) and five other isostructural complexes {[M′(cyclam)]2[M(2,5-pydc) 3]·xH2O}n (2,5-H2pydc = pyridine-2,5-dicarboxylate acid) (3, M = Co, M′ = Ni; 4, M = M′ = Ni; 5, M = Zn, M′ = Ni; 6, M = Ni, M′ = Zn and 7, M = M′ = Zn) were synthesized. Both complexes 1′ and 2′ show high selective CO2 capture over CH4 and N2. The comparisons of different gas sorption properties between 1′ and 2′ strongly suggest that metal identity has a great influence on the polarity of frameworks, but just the polar molecules respond to the polarity changes of different frameworks. The comparisons of CO2 sorption properties between five other isostructural complexes 3′-7′ also strongly suggest that metal identity has great influence on polarity of frameworks and further the CO 2 uptake.
UR - http://www.scopus.com/inward/record.url?scp=84870155642&partnerID=8YFLogxK
U2 - 10.1039/c2ce26072g
DO - 10.1039/c2ce26072g
M3 - Article
AN - SCOPUS:84870155642
SN - 1466-8033
VL - 15
SP - 78
EP - 85
JO - CrystEngComm
JF - CrystEngComm
IS - 1
ER -