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. 2022 Oct 21;22(11):6504–6520. doi: 10.1021/acs.cgd.2c00722

Table 5. Comparison of the Maximum Fluorescence Emission Wavelengths, Fluorescence Quantum Yields, and Contributions of π–π and Hydrogen Bonding of PRM, PRM-4AP, PRM-4DMP, and PRM-PPZ.

  λemmax (nm) ΦFa π–πb(%) hydrogen bondingb(%)
PRM 460 0.614 6.2 33.8
PRM-4AP 477 0.685 5.1 33.9
PRM-4DMP 471 0.660 2.2 33.7
PRM-PPZ 463 0.408 2.3 32.7
a

Fluorescence quantum yields excited at 365 nm.

b

Refers to the contribution of π–π interactions and hydrogen bonding in the crystal structures. Values are those obtained from Hirshfeld surface calculations (Table S4).