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Beilstein J. Org. Chem. 2024, 20, 653–660, doi:10.3762/bjoc.20.58
Graphical Abstract
Scheme 1: Reaction mechanisms of thermal and photoinduced [2 + 2] cycloaddition on C60 [19,22,23].
Figure 1: HOMO levels of unsaturated substrates and LUMO levels of fullerenes computed at the B3LYP/6-31G(d) ...
Scheme 2: Thermal [2 + 2] reaction of Li+@C60 TFSI− with substrates 1–4. a100 equiv for the reaction screenin...
Figure 2: HPLC profiles of themal [2 + 2]reaction of Li+@C60 with substrate 1 (a) and 2 (b) in o-dichlorobenz...
Figure 3: HPLC profiles of 5a (a) and 5b (b) before and after photoirradiation at room temperature.
Figure 4: 1H-1H 2D-NOESY NMR spectrum (600 MHz, CD2Cl2) of 5a (a) and NOE correlations between two protons. T...
Figure 5: Cyclic voltammograms of 5a, 5b, and Li+@C60 TFSI− with the potentials relative to the ferrocene/fer...
Beilstein J. Org. Chem. 2020, 16, 681–690, doi:10.3762/bjoc.16.66
Figure 1: Structure of the target buckybowls 5a–c.
Scheme 1: Synthesis of dialkoxides 5a–c.
Scheme 2: Proposed mechanism of the formation of 5b and 5c.
Figure 2: Crystal structure of 5a. a) ORTEP drawing of the crystallographically independent unit with thermal...
Figure 3: a) Definition of POAV angle (φ). b) Side and c) top view of the molecular skeleton of 1. The double...
Figure 4: Crystal structure of 5b. a) ORTEP drawing of the crystallographically independent unit with thermal...
Figure 5: Crystal structure of 5c. a) ORTEP drawing of the crystallographically independent unit with thermal...
Figure 6: a) UV–vis spectra and b) emission spectra of 1 and dialkoxides 5a–c. For all the spectra, the conce...
Beilstein J. Org. Chem. 2014, 10, 841–847, doi:10.3762/bjoc.10.80
Figure 1: Columnar packing structures of buckybowls showing (a) unidirectional and (b) opposite structures, i...
Scheme 1: Synthesis of pyrenylsumanene (1): (a) Sc(OTf)3 (5 mol %), DIH (100 mol %), CH2Cl2, rt, 2.5 h, yield...
Figure 2: The X-ray crystal structure of 1, showing: (a) top view of the ORTEP drawing with 50% probability, ...
Figure 3: (a) Absorption spectra of 1, 3 and pyrene in CH2Cl2 solution (1.0 × 10−5 M); (b) emission spectra o...
Figure 4: Calculated HOMO and LUMO orbitals and HOMO–LUMO gaps (ΔE) for 1, 3 and pyrene (ωB97XD/6-31G(d)).