Fig. 9: aPOPs with nitrogen element.
From: Amorphous porous organic polymers containing main group elements
a Chemical structure of N-P1-462,63. b Synthesis of N-P5. c Gas adsorption isotherms of N-P5. (adapted with permission from ref. 83 © 2012 American Chemical Society). d Chemical structure of narrow band-gap N-P6-8. e Photoluminescence quenching spectra of N-P7 with C60 adapted with permission from ref. 86.
