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Open AccessDynamic three-dimensional structures of a metal–organic framework captured with femtosecond serial crystallography
Crystalline systems consisting of small-molecule building blocks have emerged as promising materials with diverse applications. It is of great importance to characterize not only their static structures but al...
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Article
Open AccessCapturing the generation and structural transformations of molecular ions
Molecular ions are ubiquitous and play pivotal roles1–3 in many reactions, particularly in the context of atmospheric and interstellar chemistry4–6. However, their structures and conformational transitions7,8, pa...
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Open AccessSinglet fission dynamics modulated by molecular configuration in covalently linked pyrene dimers, Anti- and Syn-1,2-di(pyrenyl)benzene
Covalently linked dimers (CLDs) and their structural isomers have attracted much attention as potential materials for improving power conversion efficiencies through singlet fission (SF). Here, we designed and...
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Open AccessDetermining the charge distribution and the direction of bond cleavage with femtosecond anisotropic x-ray liquidography
Energy, structure, and charge are fundamental quantities characterizing a molecule. Whereas the energy flow and structure change in chemical reactions are experimentally characterized, determining the atomic c...
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Author Correction: Map** the emergence of molecular vibrations mediating bond formation
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Open AccessFilming ultrafast roaming-mediated isomerization of bismuth triiodide in solution
Roaming reaction, defined as a reaction yielding products via reorientational motion in the long-range region (3 – 8 Å) of the potential, is a relatively recently proposed reaction pathway and is now regarded ...
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Open AccessUltrafast coherent motion and helix rearrangement of homodimeric hemoglobin visualized with femtosecond X-ray solution scattering
Ultrafast motion of molecules, particularly the coherent motion, has been intensively investigated as a key factor guiding the reaction pathways. Recently, X-ray free-electron lasers (XFELs) have been utilized...
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Map** the emergence of molecular vibrations mediating bond formation
Fundamental studies of chemical reactions often consider the molecular dynamics along a reaction coordinate using a calculated or suggested potential energy surface1–5. But fully map** such dynamics experimenta...
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Open AccessUltrafast charge transfer coupled with lattice phonons in two-dimensional covalent organic frameworks
Covalent organic frameworks (COFs) have emerged as a promising light-harvesting module for artificial photosynthesis and photovoltaics. For efficient generation of free charge carriers, the donor–acceptor (D-A...
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Open AccessMeasurements of complex refractive index change of photoactive yellow protein over a wide wavelength range using hyperspectral quantitative phase imaging
A novel optical holographic technique is presented to simultaneously measure both the real and imaginary components of the complex refractive index (CRI) of a protein solution over a wide visible wavelength ra...
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Open AccessAtomistic characterization of the active-site solvation dynamics of a model photocatalyst
The interactions between the reactive excited state of molecular photocatalysts and surrounding solvent dictate reaction mechanisms and pathways, but are not readily accessible to conventional optical spectros...
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Lanthanum-catalysed synthesis of microporous 3D graphene-like carbons in a zeolite template
A long-sought three-dimensional graphene-like carbon structure that resembles periodically networked carbon nanotubes is now readily available through lanthanum-catalysed carbon synthesis using a zeolite templ...
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Open AccessSingle-step fabrication of quantum funnels via centrifugal colloidal casting of nanoparticle films
Centrifugal casting of composites and ceramics has been widely employed to improve the mechanical and thermal properties of functional materials. This powerful method has yet to be deployed in the context of n...
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Open AccessUltrafast myoglobin structural dynamics observed with an X-ray free-electron laser
Light absorption can trigger biologically relevant protein conformational changes. The light-induced structural rearrangement at the level of a photoexcited chromophore is known to occur in the femtosecond tim...
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Direct observation of bond formation in solution with femtosecond X-ray scattering
Time-resolved X-ray solution scattering is used to visualize and probe the dynamics of the individual steps in the formation of a gold trimer complex, including covalent bond formation, with a time resolution ...
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Reply to 'Contradictions in X-ray structures of intermediates in the photocycle of photoactive yellow protein'
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Open AccessConjugated organic framework with three-dimensionally ordered stable structure and delocalized π clouds
Covalent organic frameworks are a class of crystalline organic porous materials that can utilize π–π-stacking interactions as a driving force for the crystallization of polygonal sheets to form layered framewo...
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Volume-conserving trans–cis isomerization pathways in photoactive yellow protein visualized by picosecond X-ray crystallography
Trans-to-cis isomerization, the key reaction in photoactive proteins, usually cannot occur through the standard one-bond-flip mechanism. Owing to spatial constraints imposed by a protein environment, isomerizatio...
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Open AccessSimple super-resolution live-cell imaging based on diffusion-assisted Förster resonance energy transfer
Despite the recent development of several super-resolution fluorescence microscopic techniques, there are still few techniques that can be readily employed in conventional imaging systems. We present a very si...
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Spin–orbit ab initio study of two low-lying states of chloroiodomethane cation
Spin–orbit coupling plays a crucial role in the determination of molecular structure and calculation of vibrational frequencies of CH2ClI+. We performed the geometry optimizations and vibrational frequency calcul...