Photophysical properties of phenanthro[9,10-d]imidazole-type fluorescent hosts upon inclusion of organic solvent molecules

γ radiation induced self-assembly of fluorescent molecules into nanofibers: a stimuli-responsive sensing

“…Using X-ray crystallography, Yoshida et al revealed that the PI-DPA molecules can exhibit enhanced p-p stacking ability in acetic acid (HAc), through a hydrogen bonded cluster unit composed of two PI-DPA (as hosts) and two HAc (as guests). 12 Considering the fact that hydrogen bonding interaction can help control the organization of aromatic rings in face-to-face p-p stacking, 13 we assume that the PI-DPA-HCl adduct can form a similar p-p stacking assembly to PI-DPA-HAc (Fig. 3a and Fig.…”

New approach for post-functionalization of meso-formylporphyrins

“…While equimolar interaction of diketones A or B with typical aromatic aldehydes proceeds smoothly and provides high to quantitative yields of the corresponding substituted imidazoles, [41][42][43][44] in present case we encountered several peculiarities. Thus, the interaction of formylporphyrin 3Cu with equimolar amount of diketone A and 10-fold excess of NH 4 OAc upon reux in CHCl 3 /AcOH mixture did not provide complete conversion of the starting material, as revealed by TLC and MALDI-TOF MS.…”

Dopant-free small-molecule hole-transport material for low-cost and stable perovskite solar cells

“…Preparation of phenanthroimidazole derivatives was accomplished using a one-pot cyclizing reaction via a very simple route without the use of a catalyst or column chromatography purification. [73][74][75][76][77] The experimental details, including the methods and synthesis procedure for the HTMs, are presented in ESI, † S1 and S2. The molecular structures of the perovskite/ HTMs are shown in Scheme 1.…”