A 2D mesoporous imine-linked covalent organic framework for high pressure gas storage applications.

Hole-some mixture: A 2D mesoporous covalent organic framework (see figure) featuring expanded pyrene cores and linked by imine linkages has a high surface area (SA(BET) = 2723 m(2) g(-1)) and exhibits significant gas storage capacities under high pressure, which make this class of material very promising for gas storage applications.

High CO2 uptake and selectivity by triptycene-derived benzimidazole-linked polymers.

Successful incorporation of triptycene into benzimidazole-linked polymers leads to the highest CO(2) uptake (5.12 mmol g(-1), 273 K and 1 bar) by porous organic polymers and results in high CO(2)/N(2) (63) and CO(2)/CH(4) (8.4) selectivities.

Resonance Raman spectra of N-deprotonated sigma-type dianion of porphycenes.

Resonance Raman spectra of N-deprotonated sigma-type dianion of porphycenes were measured in an effort to characterize the structural changes concomitant with N-deprotonation. The observed resonance Raman behavior was consistent with the results of vibrational analysis by quantum chemical calculations based on density functional theory methods. Resonance Raman behavior predicted an expanded porphycene core for N-deprotonated sigma-type dianion with elongation of peripheral bond lengths. This sigma-type dianion is distinctive from pi-type dianion which has an expanded core with alternating changes in peripheral bond lengths.

Synthesis and aggregate formation of triphenylene core-centered porphyrin hexamers.

We demonstrate the synthesis, aggregate formation and spectroscopic property of new triphenylene core-centered porphyrin hexamers with different alkyl chain lengths.