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Beilstein J. Org. Chem. 2025, 21, 1404–1421, doi:10.3762/bjoc.21.105
Graphical Abstract
Scheme 1: Investigated compounds.
Scheme 2: Long-range PT in the studied compounds along with undesired processes of E/Z isomerization. The ind...
Figure 1: Simulated absorption spectra of the tautomers of 1 in toluene. The spectra in acetonitrile are show...
Figure 2: Normalized absorption spectra of 1.
Figure 3: Absorption spectra of 1 in acetonitrile with stepwise addition of water.
Figure 4: VT 1H NMR spectra of compound 1 in acetonitrile-d3.
Figure 5: Changes in the absorption spectrum of 2 in acetonitrile upon addition of trifluoroacetic acid (TFA)...
Figure 6: Ground (M06-2X/TZVP) and excited (CAM-B3LYP/TZVP) state potential energy surface of compound 1 in t...
Figure 7: Changes of the absorbance of compound 1 at 465 nm in toluene upon turning on and off the irradiatio...
Figure 8: a) Change of ΔE(K-E) in kcal/mol as a function of the substitution on different positions (2–6) in ...
Scheme 3: Perspective switching compounds, generated by the computational quantum chemistry calculations.
Beilstein J. Org. Chem. 2019, 15, 1898–1906, doi:10.3762/bjoc.15.185
Scheme 1: Conceptual idea for tautomeric metal sensing.
Scheme 2: 4-(Phenyldiazenyl)naphthalen-1-ol (1) and tautomeric ligands based on it.
Figure 1: The most stable tautomeric form of 6 in neutral state (left) and upon complexation with Mg(ClO4)2 (...
Figure 2: Absorption spectra of compounds 1 (a) and 6 (b) in acetonitrile (—), chloroform (− · −), dichlorome...
Figure 3: Left: Theoretically predicted structure of 6K (blue), overlaid with the X-ray structure (red). Righ...
Figure 4: Left: Absorption spectra of 6 with stepwise addition of Mg(ClO4)2 in acetonitrile (1 – neutral liga...
Figure 5: Normalized spectra of the free ligand 6 (c = 5 × 10−5 M) and its complexes obtained with Ba(ClO4)2,...
Scheme 3: Synthetic route of 6.