Deep-blue emitting 9,10-bis(perfluorobenzyl)anthracene

• Long K. San,
• Sebastian Balser,
• Brian J. Reeves,
• Tyler T. Clikeman,
• Yu-Sheng Chen,
• Steven H. Strauss and
• Olga V. Boltalina

Beilstein J. Org. Chem. 2025, 21, 515–525, doi:10.3762/bjoc.21.39

• ) K, space group Aba2, Z = 4, synchrotron radiation at ChemMatCARS Sector 15-B at the Advanced Photon Source at Argonne National Laboratory (diamond (111) crystal monochromator μ(diamond (111)) = 0.073 mm−1; λ = 0.41328 Å). 15960 reflections measured, 2395 independent reflections (Rint = 0.0356). The

Streamlined modular synthesis of saframycin substructure via copper-catalyzed three-component assembly and gold-promoted 6-endo cyclization

• Asahi Kanno,
• Ryo Tanifuji,
• Satoshi Yoshida,
• Sota Sato,
• Saori Maki-Yonekura,
• Kiyofumi Takaba,
• Jungmin Kang,
• Kensuke Tono,
• Koji Yonekura and
• Hiroki Oguri

Beilstein J. Org. Chem. 2025, 21, 226–233, doi:10.3762/bjoc.21.14

• Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo, 679-5198, Japan Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan 10.3762/bjoc.21.14 Abstract The integration of copper(I)-catalyzed three-component

• analyses. Acknowledgements We thank Michihiro Sugahara, Hisashi Naito, and Shun Narai for supporting XFEL data collection. The synchrotron radiation experiments were performed at XFEL-SPring-8 Angstrom Compact Free Electron Laser (SACLA) with the approval of the Japan Synchrotron Radiation Research

• Institute (JASRI) with proposal Nos. 2023A8035 and 2023B8020. Preliminary synchrotron radiation experiments were performed at SPring-8 BL41XU beamline with the approval of JASRI with proposal Nos. 2021B1517 and 2022A1572. Funding This work was supported by JSPS KAKENHI (JP22K14790, JP22H00346, JP22H05127: R

Anion-dependent ion-pairing assemblies of triazatriangulenium cation that interferes with stacking structures

• Yohei Haketa,
• Takuma Matsuda and
• Hiromitsu Maeda

Beilstein J. Org. Chem. 2024, 20, 2567–2576, doi:10.3762/bjoc.20.215

• = 0.71073 Å) focused by a multilayer confocal mirror, whereas the data of 2+-PF6− and 2+-B(C6F5)4− were collected at 100 K on a DECTRIS EIGER X 1M diffractometer with Si(111) monochromated synchrotron radiation (λ = 0.8125 and 0.8120 Å, respectively) at BL40XU (SPring-8) [41][42]. The data of 2+-PCCp− was

• collected at 90 K on a Rigaku Pliatus 3 CdTe 1M with Si(311) monochromated synchrotron radiation (λ = 0.4144 Å) at BL02B1 (SPring-8) [43]. All the structures were solved by dual-space method. The structures were refined by a full-matrix least-squares method by using a SHELXL 2014 [44] (Yadokari-XG) [45][46

• radiation experiments were performed at the BL02B1 (2023A1645) and BL40XU (2023B1390) of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI). We thank Mr. Makoto Kobayashi, Ritsumeikan University, for the initial examinations of ion-pairing assemblies of TATA+, Dr. Yuiga

Understanding X-ray-induced isomerisation in photoswitchable surfactant assemblies

• Beatrice E. Jones,
• Camille Blayo,
• Jake L. Greenfield,
• Matthew J. Fuchter,
• Nathan Cowieson and
• Rachel C. Evans

Beilstein J. Org. Chem. 2024, 20, 2005–2015, doi:10.3762/bjoc.20.176

• B. E. Jones et al., published by Journal of Synchrotron Radiation, distributed under the terms of the Creative Commons Attribution 4.0 International License). SAXS curves for AzoTAB (50 mM in water) showing the transition from the Z-rich PSS to the E-rich state with increasing X-ray exposure time

• Journal of Synchrotron Radiation, distributed under the terms of the Creative Commons Attribution 4.0 International License). SAXS curves for the Z-rich PSS of AAPTAB (50 mM) in (a) water (H2O) and (b) deuterium dioxide (D2O) show changes to the micelle shape and size on X-ray exposure. Fits to the data

Synthesis of indano[60]fullerene thioketone and its application in organic solar cells

• Yong-Chang Zhai,
• Shimon Oiwa,
• Shinobu Aoyagi,
• Shohei Ohno,
• Tsubasa Mikie,
• Jun-Zhuo Wang,
• Hirofumi Amada,
• Koki Yamanaka,
• Kazuhira Miwa,
• Naoyuki Imai,
• Takeshi Igarashi,
• Itaru Osaka and
• Yutaka Matsuo

Beilstein J. Org. Chem. 2024, 20, 1270–1277, doi:10.3762/bjoc.20.109

• time. A single crystal of t-Bu-FIDS was grown by liquid–liquid diffusion method (CS2/EtOH). The crystal structure was successfully analyzed using synchrotron radiation at SPring-8. The crystal exhibited the orthorhombic space group (No. 61) with the D2h point group, and the structure confirmed the 1,2

• Economic Research Foundation and the Yashima Environment Technology Foundation for financial support. This work was supported by the Japan Science and Technology Agency (JST SPRING), Grant Number JPMJSP2125. The synchrotron radiation experiment was performed at SPring-8 with the approval of the Japan

• Synchrotron Radiation Research Institute (JASRI) (Proposal No. 2023A1758).

On Reuben G. Jones synthesis of 2-hydroxypyrazines

• Pierre Legrand and
• Yves L. Janin

Beilstein J. Org. Chem. 2022, 18, 935–943, doi:10.3762/bjoc.18.93

• Institute Pasteur for crystal freezing and data collection. We acknowledge SOLEIL (Saint-Aubin, France) for provision of synchrotron radiation facilities and we would like to thank the staff of PROXIMA-2 for assistance in using beamline. Funding This project benefited from the Valoexpress internal funding

Synthesis of C₇₀-fragment buckybowls bearing alkoxy substituents

• Yumi Yakiyama,
• Shota Hishikawa and
• Hidehiro Sakurai

Beilstein J. Org. Chem. 2020, 16, 681–690, doi:10.3762/bjoc.16.66

• the detector at 150 K in house. The diffraction images processsing and absorption correction were performed by using RIGAKU RAPID AUTO [28]. The diffraction data for 5b was recorded on an ADSC Q210 CCD area detector with a synchrotron radiation (λ = 0.70000 Å) at 2D beamline in Pohang Accelerator

• for Scientific Research on Innovative Area “π Space Figuration” from MEXT (No. JP26102002), and JSPS KAKENHI (19H00912). The X-ray diffraction study of 5b with synchrotron radiation was performed at the Pohang Accelerator Laboratory (Beamline 2D) supported by POSTECH.

Aggregation-induced emission effect on turn-off fluorescent switching of a photochromic diarylethene

• Luna Kono,
• Yuma Nakagawa,
• Ayako Fujimoto,
• Ryo Nishimura,
• Yohei Hattori,
• Toshiki Mutai,
• Nobuhiro Yasuda,
• Kenichi Koizumi,
• Satoshi Yokojima,
• Shinichiro Nakamura and
• Kingo Uchida

Beilstein J. Org. Chem. 2019, 15, 2204–2212, doi:10.3762/bjoc.15.217

• Science, the University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8505, Japan Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198 Japan Nakamura Laboratory, RIKEN Cluster for Science, Technology and Innovation Hub, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan

• JP26107012 in Scientific Research on Innovative Areas “Photosynergetics”, the CREST program (JPMJCR17N2) of the Japan Science and Technology Agency. We thank Ms Y. Nishikawa (NAIST) for conducting the mass-spectroscopic measurement. The synchrotron radiation experiments were performed using the BL40XU

• beamlines of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (Proposal No. 2019A1110).

Mechanochemical synthesis of thioureas, ureas and guanidines

• Vjekoslav Štrukil

Beilstein J. Org. Chem. 2017, 13, 1828–1849, doi:10.3762/bjoc.13.178

• to be made. Since these are solid-state reactions, powder X-ray diffraction (PXRD) using synchrotron radiation was suitable as the analytical tool to monitor the changes during ball milling on a microscopic level in real time [24]. In this way, the first in situ observations of mechanochemical

Molecular recognition of N-acetyltryptophan enantiomers by β-cyclodextrin

• Spyros D. Chatziefthimiou,
• Mario Inclán,
• Petros Giastas,
• Athanasios Papakyriakou,
• Konstantina Yannakopoulou and
• Irene M. Mavridis

Beilstein J. Org. Chem. 2017, 13, 1572–1582, doi:10.3762/bjoc.13.157

• days, produced crystals that could not be refined by isomorphous replacement using the coordinates of hydrated β-CD or other isomorphous crystals, as above. Structure determination. Low temperature X-ray data were collected at synchrotron radiation light sources. A single crystal, covered with a drop

Glycoscience@Synchrotron: Synchrotron radiation applied to structural glycoscience

• Serge Pérez and
• Daniele de Sanctis

Beilstein J. Org. Chem. 2017, 13, 1145–1167, doi:10.3762/bjoc.13.114

• Serge Perez Daniele de Sanctis Department of Molecular Pharmacochemistry, CNRS-University Grenoble Alpes, France ESRF – The European Synchrotron, Grenoble, France 10.3762/bjoc.13.114 Abstract Synchrotron radiation is the most versatile way to explore biological materials in different states

• : monocrystalline, polycrystalline, solution, colloids and multiscale architectures. Steady improvements in instrumentation have made synchrotrons the most flexible intense X-ray source. The wide range of applications of synchrotron radiation is commensurate with the structural diversity and complexity of the

• hydrolases; glycosyl transferases; kinetic crystallography; lectins; polysaccharides; powder diffraction; small-angle X-ray scattering; starch; synchrotron radiation; transporters; X-ray crystallography; Introduction Over the last decade, glycoscience has greatly benefited from the development of structural

Aggregation behaviour of a single-chain, phenylene-modified bolalipid and its miscibility with classical phospholipids

• Simon Drescher,
• Vasil M. Garamus,
• Christopher J. Garvey,
• Annette Meister and
• Alfred Blume

Beilstein J. Org. Chem. 2017, 13, 995–1007, doi:10.3762/bjoc.13.99

• ) SAXS experiments were performed at the P12 BioSAXS beamline of the European Molecular Biology Laboratory (EMBL) at the storage ring PETRA III of the Deutsche Elektronen Synchrotron (DESY, Hamburg, Germany) using a Pilatus 2M detector (1475 × 1679 pixels; Dectris, Switzerland) and synchrotron radiation

Effects of solvent additive on “s-shaped” curves in solution-processed small molecule solar cells

• John A. Love,
• Shu-Hua Chou,
• Ye Huang,
• Guilllermo C. Bazan and
• Thuc-Quyen Nguyen

Beilstein J. Org. Chem. 2016, 12, 2543–2555, doi:10.3762/bjoc.12.249

• (Award No. N000141410076) for support of this work. T.-Q.N. thanks the Camille Dreyfus Teacher Scholar Award. The authors acknowledge the support of Stanford Synchrotron Radiation Light source (SSRL), which is supported by the U.S. Department of Energy.

Molecular ordering at electrified interfaces: Template and potential effects

• Thanh Hai Phan and
• Klaus Wandelt

Beilstein J. Org. Chem. 2014, 10, 2243–2254, doi:10.3762/bjoc.10.233

• dicationic character of the DBV2+ building blocks of this cavitand structure was verified by ex situ XPS measurements using synchrotron radiation, namely by a dominant N(1s) signal at 402.1 eV [27]. Sweeping the electrode potential to a value below −200 mV vs RHE causes the disintegration of the cavitand

Photoionisation of the tropyl radical

• Kathrin H. Fischer,
• Patrick Hemberger,
• Andras Bodi and
• Ingo Fischer

Beilstein J. Org. Chem. 2013, 9, 681–688, doi:10.3762/bjoc.9.77

• study on the photoionisation of the cycloheptatrienyl (tropyl) radical, C7H7, using tunable vacuum ultraviolet synchrotron radiation. Tropyl is generated by flash pyrolysis from bitropyl. Ions and electrons are detected in coincidence, permitting us to record mass-selected photoelectron spectra. The

• ; synchrotron radiation; threshold photoelectron spectroscopy; Introduction Organic radicals are known to be ubiquitous reactive intermediates in chemistry, biology and material science [1]. Studies on isolated radicals conducted in our group [2] yield their intrinsic properties, which are essential for

• understanding the reactivity of radicals in both the gas and condensed phase. Here we present a detailed study on the photoionisation of the cycloheptatrienyl radical (C7H7), commonly called tropyl, using synchrotron radiation. The tropyl radical 1 and its cation 2 are depicted in Figure 1. They have been at

Spin state switching in iron coordination compounds

• Philipp Gütlich,
• Ana B. Gaspar and
• Yann Garcia

Beilstein J. Org. Chem. 2013, 9, 342–391, doi:10.3762/bjoc.9.39

• state conversion curve γHS(T) (Figure 2) by plotting the normalized area fractions of characteristic HS or LS bands as a function of temperature. A new method of studying vibrational properties has been developed based on nuclear resonance scattering (NRS) with synchrotron radiation, also denoted as

• Mössbauer spectroscopy in the time domain in comparison to classical Mössbauer spectroscopy in the energy domain [71][72][73]. NRS experiments are carried out in two ways: nuclear inelastic scattering (NIS) and nuclear forward scattering (NFS) of synchrotron radiation. The NIS technique has proven to be an

• -1,2,4-triazole) [138][139]. Nuclear resonance scattering of synchrotron radiation (NRS) began with the pioneering work of Gerdau et al. in 1985 [71][72][73] who proposed an unconventional Mössbauer spectroscopy technique based on the possibility of using synchrotron radiation for nuclear resonance

A ferrocene redox-active triazolium macrocycle that binds and senses chloride

• Nicholas G. White and
• Paul D. Beer

Beilstein J. Org. Chem. 2012, 8, 246–252, doi:10.3762/bjoc.8.25

• , 597.2239. X-ray crystallography Single crystal X-ray diffraction data for 3 were collected by using synchrotron radiation (λ = 0.6889 Å) at the Diamond Light Source, Beam I19. The diffractometer was equipped with a Cryostream N2 open-flow cooling device [19] and the data were collected at 100(2) K. A