Mater., 2009, 21, 3033; (c) O. K. Farha, Y. S. Bae, B. G. Hauser,
A. M. Spokoyny, R. Q. Snurr, C. A. Mirkin and J. T. Hupp, Chem.
Commun., 2010, 46, 1056.
4 (a) A. I. Cooper, Adv. Mater., 2009, 21, 1291; (b) A. Thomas, Angew.
Chem., Int. Ed., 2010, 49, 8328.
5 T. Ben, H. Ren, S. Ma, D. Cao, J. Lan, X. Jing, W. Wang, J. Xu,
F. Deng, J. M. Simmons, S. Qiu and G. Zhu, Angew. Chem., Int.
Ed., 2009, 48, 9457.
energy and environmental issues. Hydrogen storage capacities of
p-PPF and m-PPF were measured at 77 K using the BELSORP-
HP apparatus up to 45 bar. As demonstrated in Fig. 5a and b, p-
PPF and m-PPF exhibit saturation amount of hydrogen uptake
of about 67 mL gꢁ1 and 56 mL gꢁ1, respectively. The steep uptake
at low pressure regions in both polymers indicates strong inter-
action of the H2 with the pore surfaces of the polymers. CO2
storage capacities of the polymers at 273 K up to 30 bar are about
58 mL gꢁ1 and 41 mL gꢁ1, respectively (Fig. 5c). The H2 and CO2
storage capacity of these polymers are comparable to a MOF
having a similar surface area.18
ꢁ
6 (a) J. Germain, J. M. J. Frechet and F. Svec, J. Mater. Chem., 2007,
17, 4989; (b) J.-Y. Lee, C. D. Wood, D. Bradshaw, M. J. Rosseinsky
and A. I. Cooper, Chem. Commun., 2006, 2670; (c) C. D. Wood,
B. Tan, A. Trewin, H. Niu, D. Bradshaw, M. J. Rosseinsky,
€
Y. Z. Khimyak, N. L. Campbell, R. Kirk, E. Stockel and
A. I. Cooper, Chem. Mater., 2007, 19, 2034.
7 (a) N. B. McKeown, B. Gahnem, K. J. Msayib, P. M. Budd,
C. E. Tattershall, K. Mahmood, S. Tan, D. Book, H. W. Langmi
and A. Walton, Angew. Chem., Int. Ed., 2006, 45, 1804; (b)
P. M. Budd, B. S. Ghanem, S. Makhseed, N. B. McKeown,
K. J. Msayib and C. E. Tattershall, Chem. Commun., 2004, 230.
8 (a) J. Weber and A. Thomas, J. Am. Chem. Soc., 2008, 130, 6334; (b)
J.-X. Jiang, F. Su, A. Trewin, C. D. Wood, H. Niu, J. T. A. Jones,
Y. Z. Khimyak and A. I. Cooper, J. Am. Chem. Soc., 2008, 130,
7710; (c) J.-X. Jiang, F. Su, C. D. Wood, N. L. Campbell, H. Niu,
C. Dickinson, A. Y. Ganin, M. J. Rosseinsky, Y. Z. Khimyak,
A. I. Cooper and A. Trewin, Angew. Chem., Int. Ed., 2007, 46,
4. Conclusions
In conclusion, we have synthesized and characterized two
conjugated poly(phenylene) based microporous polymers, p-
PPF and m-PPF, using Suzuki coupling reactions of para- and
meta-structure directing monomers, respectively. Characteriza-
tion of these polymers suggested the presence of three-dimen-
sional
amorphous
networks.
Remarkably,
sorption
€
8574; (d) J. R. Holst, E. Stockel, D. J. Adams and A. I. Cooper,
measurements of both the polymers revealed very high selectivity
for CO2 adsorption over N2 or Ar. This selective CO2 capture
was hitherto unknown for the family of CMPs and is comparable
with the similar reports with various MOFs and molecular
porous solids. Furthermore, both p- and m-PPF exhibited
hydrogen sorption at high pressures. These stable CMPs could
find applications as reusable CO2 adsorbates and in stabilizing
atmospheric CO2 levels.
Macromolecules, 2010, 43, 8531; (e) R. Dawson, A. Laybourn,
Y. Z. Khimyak, D. J. Adams and A. I. Cooper, Macromolecules,
2010, 43, 8524; (f) J. H. Choi, K. M. Choi, H. J. Jeon, Y. J. Choi,
Y. Lee and J. K. Kang, Macromolecules, 2010, 43, 5508; (g)
€
E. Stockel, X. Wu, A. Trewin, C. D. Wood, R. Clowes,
N. L. Campbell, J. T. A. Jones, Y. Z. Khimyak, D. J. Adams and
A. I. Cooper, Chem. Commun., 2009, 212; (h) J. Lan, D. Cao,
W. Wang, T. Ben and G. Zhu, J. Phys. Chem. Lett., 2010, 1, 978;
(i) L. Chen, Y. Honsho, S. Seki and D. Jiang, J. Am. Chem. Soc.,
2010, 132, 6742; (j) L. Chen, Y. Yang and D. Jiang, J. Am. Chem.
Soc., 2010, 132, 9138.
9 (a) P. Kuhn, M. Antonietti and A. Thomas, Angew. Chem., Int. Ed.,
2008, 47, 3450; (b) M. J. Bojdys, S. A. Wohlgemuth, A. Thomas and
M. Antonietti, Macromolecules, 2010, 43, 6639; (c) P. Kuhn,
A. Thomas and M. Antonietti, Macromolecules, 2009, 42, 319; (d)
W. Zhang, C. Li, Y.-P. Yuan, L.-G. Qiu, A.-J. Xie, Y.-H. Shena
and J.-F. Zhu, J. Mater. Chem., 2010, 20, 6413; (e) H. Ren, T. Ben,
E. Wang, X. Jing, M. Xue, B. Liu, Y. Cui, S. Qiua and G. Zhu,
Chem. Commun., 2010, 46, 291.
10 S. Yuan, B. Dorney, D. White, S. Kirklin, P. Zapol, L. Yu and
D.-J. Liu, Chem. Commun., 2010, 46, 4547.
11 See ESI†.
12 M. J. Frisch, et al., Gaussian 09, Revision B.01, Gaussian, Inc.,
Wallingford, CT, 2010.
13 (a) A. D. Becke, J. Chem. Phys., 1993, 98, 5648; (b) C. Lee, W. Yang
and R. G. Parr, Phys. Rev. B: Condens. Matter Mater. Phys., 1988, 37,
785.
14 W. Humphrey, A. DalkeandK. Schulten, J. Mol. Graphics, 1996, 14, 33.
15 (a) B. Schlicke, P. Belser, L. De Cola, E. Sabbioni and V. Balzani, J.
Am. Chem. Soc., 1999, 121, 4207; (b) M. Banerjee, R. Shukla and
R. Rathore, J. Am. Chem. Soc., 2009, 131, 1780.
16 J. He, J. L. Crase, S. H. Wadumethrige, K. Thakur, L. Dai, S. Zou,
R. Rathore and C. S. Hartley, J. Am. Chem. Soc., 2010, 132, 13848.
17 T. K. Maji, R. Matsuda and S. Kitagawa, Nat. Mater., 2007, 6, 142.
18 (a) P. Kanoo, R. Matsuda, M. Higuchi, S. Kitagawa and T. K. Maji,
Acknowledgements
We thank Prof. C. N. R. Rao for his support and guidance. We
thank JNCASR and Department of Science and Technology,
Government of India for financial support. We thank Mahesh
for SEM measurements. K. V. R and S. M. thank the CSIR for
research fellowships
Notes and references
1 (a) Y.-S. Bae, O. K. Farha, J. T. Hupp and R. Q. Snurr, J. Mater.
Chem., 2009, 19, 2131; (b) Y. Inubushi, S. Horike, T. Fukushima,
G. Akiyama, R. Matsuda and S. Kitagawa, Chem. Commun., 2010,
46, 9229; (c) J. Zhang, H. Wu, T. J. Emge and J. Li, Chem.
Commun., 2010, 46, 9152; (d) H. C. Cho, H. S. Lee, J. Chun,
S. M. Lee, H. J. Kimb and S. U. Son, Chem. Commun., 2010, 47,
917; (e) S. Aguado, C.-H. Nicolas, V. Moizan-Basle, C. Nieto,
H. Amrouche, N. Bats, N. Audebrandd and D. Farrusseng, New J.
Chem., 2010, 35, 41.
2 (a) Y. Jin, B. A. Voss, R. D. Noble and W. Zhang, Angew. Chem., Int.
Ed., 2010, 49, 6348; (b) H. Kim, Y. Kim, M. Yoon, S. Lim,
S. M. Park, G. Seo and K. Kim, J. Am. Chem. Soc., 2010, 132, 12200.
3 (a) J. Fang, H. Kita and K.-i. Okamoto, Macromolecules, 2000, 33,
4639; (b) O. K. Farha, A. M. Spokoyny, B. G. Hauser, Y. S. Bae,
S. E. Brown, R. Q. Snurr, C. A. Mirkin and J. T. Hupp, Chem.
ꢁ
Chem.
Mater.,
2009,
21,
5860; (b)
S.
Mohapatra,
K. P. S. S. Hembram, U. Waghmare and T. K. Maji, Chem.
Mater., 2009, 21, 5406.
This journal is ª The Royal Society of Chemistry 2011
J. Mater. Chem., 2011, 21, 12958–12963 | 12963