Fig. 2: Synthesis and characterization of Zr-PZDB.
From: Metal-organic framework boosts heterogeneous electron donor–acceptor catalysis
a Schematic showing the synthesis of Zr-PZDB and the structure: X-ray single-crystal structure represented by an octahedron-like cage; disorder and H atoms are omitted for clarity; light blue: Zr, red: O, blue: N, gray: C. b PXRD patterns of Zr-PZDB; arb. u. = arbitrary units. c, d SEM (c) and HRTEM (d) of Zr-PZDB. e IR spectra of Zr-PZDB and PZDB-H. f Zoom-in 1H NMR of digested Zr-PZDB in DMSO-d6. g Normalized excitation and emission spectra of Zr-PZDB and PZDB-H in MeCN; arb. u. = arbitrary units. h UV-vis spectra of 1a, Zr-PZDB, and their mixture in MeCN (2.5 × 10−3 M); a. u. = absorbance units. i UV-vis spectra of 1a, PZDB-H, and their mixture in MeCN (2.5 × 10−3 M); a. u. = absorbance units. j UV-vis spectra of mixtures of 1a and Zr-PZDB with different ratios of 1a in MeCN (5 × 10−3 M); a. u. = absorbance units. k Job’s plot based on UV-vis data in (j).
