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Search for "single-crystal X-ray diffractometry" in Full Text gives 5 result(s) in Beilstein Journal of Organic Chemistry.
Deep-blue emitting 9,10-bis(perfluorobenzyl)anthracene
Beilstein J. Org. Chem. 2025, 21, 515–525, doi:10.3762/bjoc.21.39
- photochemical reaction. Its structure was elucidated by NMR spectroscopy and single crystal X-ray diffractometry. The latter revealed no π–π interaction between neighboring ANTH cores. A combination of high photoluminescence quantum yield (PLQY) of 0.85 for 9,10-ANTH(BnF)2, its significantly improved
Construction of hexabenzocoronene-based chiral nanographenes
Beilstein J. Org. Chem. 2023, 19, 736–751, doi:10.3762/bjoc.19.54
- chiral nanographenes. Keywords: chiral nanographene; helicene; racemization barrier; Scholl reaction; single-crystal X-ray diffractometry; Introduction Graphene, an allotrope of carbon, has captured widespread attention since it was first experimentally demonstrated as a monolayer of carbon atoms [1
- reaction [39]. Recently, An and co-workers reported a helical, azepine-containing NG 27 by the introduction of an NH in the seco-HBC framwork (Scheme 3). Single-crystal X-ray diffractometry revealed the mixed P/M enantiomers. Taking advantage of the grafting NH functional group, the optical resolution of
- through oxidative cyclodehydrogenation and imine formation in a 72% yield. It was noted that no other regioisomer was detected for the asymmetrical precursor 30. The pair of enantiomers was confirmed by the racemic structure's single-crystal X-ray diffractometry and separated by chiral HPLC, and no
Synthesis and anticancer activity of bis(2-arylimidazo[1,2-a]pyridin-3-yl) selenides and diselenides: the copper-catalyzed tandem C–H selenation of 2-arylimidazo[1,2-a]pyridine with selenium
Beilstein J. Org. Chem. 2020, 16, 1075–1083, doi:10.3762/bjoc.16.94
- . The structures of the diselenide 2a and the selenide 3a were determined by single crystal X-ray diffractometry and are shown in Figure 2. The compounds 2a and 3a both had selenium atoms attached to the 3-positions of their respective imidazo[1,2-a]pyridine rings. The diselenide 2a had a characteristic
Absolute configurations of talaromycones A and B, α-diversonolic ester, and aspergillusone B from endophytic Talaromyces sp. ECN211
Beilstein J. Org. Chem. 2020, 16, 290–296, doi:10.3762/bjoc.16.28
- in good agreement with those of 1 (Figure 3b), the absolute configuration of 2 was also assigned to be R. Single crystals of α-diversonolic ester (3) were obtained as colorless prisms by vapor diffusion with acetone/n-hexane, and single-crystal X-ray diffractometry determined the structure shown in
- derivatives, α-diversonolic ester (3) and aspergillusone B (4), from the cultures of Talaromyces sp. ECN211. The absolute configurations of 3 and 4 had previously only been assigned tentatively and could now be confirmed by single-crystal X-ray diffractometry and ECD spectroscopy. We also revealed the
- absolute configurations of the new derivatives 1 and 2 using extensive spectroscopic analyses as well as single-crystal X-ray diffractometry. Our crystallization efforts resolved the absolute configuration of α-diversonolic ester (3) and its derivatives, which had not been clarified previously
Oxidative phenylamination of 5-substituted 1-hydroxynaphthalenes to N-phenyl-1,4-naphthoquinone monoimines by air and light “on water”
Beilstein J. Org. Chem. 2014, 10, 2448–2452, doi:10.3762/bjoc.10.255
- and potential of this methodology are under way in our laboratory. Structures of compounds 1–3. Structure of compound 6 determined by single crystal X-ray diffractometry. Hypothetical one-pot synthesis of compound 4a and/or 4b. Evaluation of the substrate scope using RB as oxygen (1O2) sensitizer “on
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