forthcoming articles

The following articles are a selection of those recently accepted for publication in IUCr journals.

Journal logoActa Crystallographica Section A
Acta Crystallographica
Section A
FOUNDATIONS AND ADVANCES
Accepted 26 January 2026

Approximate lattice matching in three dimensions

A solution is proposed for the problem of best matching the lattices of unit cells that are described in different presentations along with the three-dimensional matrix that defines the relationship between matched lattices.

Accepted 15 January 2026

P3, linearizing unit-cell parameters

P3 is a linearized description of unit-cell parameters, created from the usual lengths and angles of the unit cell. It provides a useful metric for comparing unit cells and a convenient base for displaying and comparing unit cells.
Journal logoActa Crystallographica Section B
Acta Crystallographica
Section B
STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

Accepted 23 January 2026

Structure and properties of (Nd,Sr)(Al,Ta)O3 (NSAT) substrate crystals

An emerging cubic substrate material (Nd,Sr)(Al,Ta)O3 (NSAT) has been structurally and spectroscopically characterized revealing that the nominally cubic NSAT consists of partially developed cubic superstructure domains with doubled lattice parameter. The spectroscopic features are consequently broad due to this partial order.

Accepted 23 January 2026

Crystal growth, structure and infrared absorption of co-doped (Cr, Co, Fe):ZnSe single crystals

Using the high-pressure Bridgman method, (Cr, Co, Fe)-co-doped ZnSe optical crystals are grown for the first time, and their physical properties related to the crystal structure are investigated.

Accepted 14 January 2026

Incommensurately modulated structures of the M1/8Pr5/8MoO4 (M = Li, Na, K) scheelites

The effect of cation substitutions in the scheelite-type framework is investigated to understand the ordering of M+/Pr3+ cations and vacancies in the structure. The incommensurately modulated crystal structures of the scheelite-based M1/8Pr5/8MoO4 (M = Li, Na, K) phases were refined from synchrotron powder X-ray diffraction data.

Accepted 13 January 2026

Synthesis of g-C3N4/TiO2-based photocatalysts for hydrogen production from organic substrates

Development of a synthesis approach for g-C3N4/TiO2 composite photocatalysts based on laboratory-prepared TiO2 for H2 evolution.

Accepted 7 January 2026

SDS-induced the formation [sodium do­decyl sulfate induced formation] of [a] messy structure methane hydrate: a molecular dynamics simulation study

The molecular dynamics method was used to confirm that SDS can act as a hydrate promoter, and it was demonstrated that SDS causes the structure of hydrates to be different from the standard Type I structure.

Accepted 7 January 2026

Mechanistic insight into the effect of tacticity of poly(methyl methacrylate) on crystallization of amorphous griseofulvin: excluding monomer and end-group effects

By controlling the tacticity of PMMA, the glass transition temperature of polymers is studied as an independent factor, while factors such as intermolecular interactions, molecular weight and end-group effects are excluded. The relationship between liquid dynamics and crystallization reveal that the effect of isotactic and atactic forms of PMMA on the crystal growth can be mainly attributed to a change in global mobility, while decrease in global mobility cannot fully explain the inhibitory effects of syndiotactic PMMA on the crystallization of griseofulvin.
Journal logoActa Crystallographica Section C
Acta Crystallographica
Section C
STRUCTURAL CHEMISTRY

Accepted 3 February 2026

Preparation and powder X-ray diffraction study of tecovirimat hydrate solid forms

Methods for the reproducible preparation of three hydrated solid forms of the anti­viral com­pound tecovirimat (forms I, III and V) are presented and their phase purity was verified by powder X-ray diffraction using Rietveld refinement. Two previously unknown crystal structures (forms I and V) were determined. A com­parative analysis was made of the hy­dro­gen-bonding motifs and packing architectures.

Accepted 26 January 2026

Structure and optical properties of a trimetallic cobalt–molybdenum–sodium metal–organic framework

The structure of a trimetallic MOF synthesized under solvothermal conditions has been determined using 3D electron diffraction with bulk sample purity assessed by Rietveld analysis of high-resolution powder X-ray diffraction. The 3D connected structure con­tains tetra­hedral MoVI, five-coordinate CoII and six- and seven-coordinate Na, connected by benzene-1,3,5-tri­carboxyl­ate, and shows a UV–Vis spectrum consistent with the trigonal bipyramidal cobalt(II) centre.

Accepted 26 January 2026

Room-tem­per­ature crystal structures of [CH(NH2)2]3Sb2X9 (X = Br and I)

Two new vacancy-ordered formamidinium anti­mony halide triple-per­ov­skites, FA3Sb2X9 {FA = [CH(NH2)2]+; X = Br and I}, measured by single-crystal X-ray diffraction are described.
Journal logoActa Crystallographica Section D
Acta Crystallographica
Section D
STRUCTURAL BIOLOGY

Accepted 6 February 2026

Decision-making in serial crystallography: a simple test to quickly determine whether sufficient data have been collected

We describe a simple test to determine whether sufficient data have been collected during a serial crystallographic experiment, and its incorporation into the autoprocessing pipeline at the T-REXX endstation on beamline P14 at the PETRA III synchrotron.

Accepted 3 February 2026

Deep-learning methods for contrast enhancement and artifact reduction in cryo-electron tomography: a systematic analysis of state-of-the-art and proposed improvements


Accepted 29 January 2026

Validated ligand geometries for macromolecular refinement restraints and molecular-mechanics force fields

A database of validated ligand restraints computed using various levels of quantum mechanics is generated and distributed with Phenix to streamline and improve macromolecular refinement results.

Accepted 28 January 2026

Phosphatidylinositol transfer protein α binds microcolins in its open conformation

We report the crystal structure of human PITPα in complex with microcolin H at 2.0 Å resolution, revealing that microcolins bind covalently within the lipid-binding cavity and stabilize PITPα in an open conformation with a markedly enlarged cavity relative to the lipid-bound state. These results define the structural basis of PITP inhibition by microcolins and underscore the importance of using ligand-bound conformations for accurate structure-based modeling.

Accepted 26 January 2026

Breaking barriers: transitioning from X-ray crystallography to cryo-EM for structural studies

This article describes the transition of the Glass laboratory from X-ray crystallography to single-particle cryo-electron microscopy (cryo-EM) for structural studies of ATAD2B, a large AAA+ ATPase- and bromodomain-containing protein involved in chromatin regulation. It outlines practical strategies for protein expression, sample preparation, data processing and model building, offering a comprehensive workflow and troubleshooting guide for new cryo-EM users working with large, flexible macromolecular complexes.

Accepted 24 January 2026

Updating direct methods V. Phasing when triplet invariants are estimated via the Patterson map

Crystal structures of proteins and nucleic acids with data resolution up to 2.2 Å are solved via a novel direct-methods program using the Pattterson map as prior information.
Journal logoActa Crystallographica Section E
Acta Crystallographica
Section E
CRYSTALLOGRAPHIC COMMUNICATIONS

Accepted 5 February 2026

Crystal structures of an azo­benzene-bridged aza-18-crown-6 cryptand and a sodium complex thereof

The single-crystal X-ray diffraction structures of an azo­benzene-bridged aza-18-crown-6 cryptand and its sodium complex are reported.

Accepted 5 February 2026

Synthesis and structure of a binuclear calcium nitrate coordination complex with bridging zwitterionic nicotinic acid

The crystal structure of [Ca2(C6H5NO2)2(H2O)2(NO3)2] reveals an eight-coordinate distorted dodeca­hedral CaII center with mixed ligands. A Hirshfeld surface analysis elucidated the inter­molecular inter­actions consolidating the crystal.

Accepted 4 February 2026

Syntheses and structures of N-(2-fluoro­phen­yl)-2-oxo-2H-chromene-3-carboxamide and N-[4-(methyl­sulfon­yl)phen­yl]-2-oxo-2H-chromene-3-carboxamide

Two 2-oxo-2H-chromene derivatives were synthesized by acid–aniline coupling reactions. These two compounds were subjected to SXRD and Hirshfeld surface analysis to explore their inter­molecular inter­actions.

Accepted 3 February 2026

Synthesis, crystal structure and Hirshfeld surface analysis of bis­(2-amino-1,3,4-thia­diazol-3-ium) di­aqua­dichlorido(propanedioato-κ2O1,O3)manganate(II)

In the complex anion of the title salt, the central MnII atom adopts a distorted octa­hedral coordination environment, defined by two aqua, two chlorido, and one bidentate malonato ligand. The thia­diazole ligands are protonated and linked to the anion through various hydrogen-bonding inter­actions.
Journal logoActa Crystallographica Section F
Acta Crystallographica
Section F
STRUCTURAL BIOLOGY COMMUNICATIONS

Accepted 6 February 2026

Crystal structure of carbon–nitrogen hydrolase from Helicobacter pylori G27

H. pylori carbon-nitrogen hydrolase (HpCNH) was produced and crystallized, and its 2.1 Å structure is reported.

Accepted 4 February 2026

Crystal structure of endo-β-N-acetylglucosaminidase HSα

Structural analysis of GH85 Endo HSα reveals a novel domain potentially involved in complex N-glycan recognition.

Accepted 4 February 2026

Cryo-EM structures of a MexB–MexY chimeric efflux pump reveal that large open clefts are intrinsic to the MexY porter domain

In this study, cryo-EM structures of the chimeric RND transporter MexBYB, composed of MexB and MexY, are presented, revealing distinct symmetric-like and asymmetric conformations under apo and drug-supplemented conditions. These structures show that the unusually large open clefts observed in MexBYB, similar to those in MexY, represent a unique conformational feature of the MexY Porter domain.

Accepted 26 January 2026

Crystallization and X-ray structure of a highly aggregation-prone monobody engineered for high-affinity small-molecule recognition

This report describes the crystallization and X-ray structure of a highly aggregation-prone monobody engineered for small-molecule recognition. By employing a maltose-binding protein fusion strategy with optimized inter-domain linkers, we successfully obtained diffraction-quality crystals of the protein–ligand complex and determined its structure.

Accepted 9 January 2026

Cryo-EM sample preparation for high-resolution structure studies. Corrigendum

Journal logoJournal of Applied Crystallography Journal of Applied
Crystallography

Accepted 21 January 2026

AstroECP: towards more practical electron channeling contrast imaging

Here we explore and address many of the major challenges associated with using electron channeling contrast imaging in a scanning electron microscope, with the goal of more easily revealing and characterizing crystalline defects such as dislocations.

Accepted 20 January 2026

A cryogenic probe for in situ delivery of gaseous samples for neutron scattering

Description of an optimized gas-delivery stick for use with top-loading cryostats for neutron scattering measurements.

Accepted 18 January 2026

Crystallite orientation and lateral material distribution in transition metal dichalcogenide thin films studied by laboratory GIWAXS

The combination of grazing-incidence wide-angle X-ray scattering (GIWAXS) tomography and pole figure measurements enables advanced analysis of transition metal dichalcogenide (TMD) thin films even under standard laboratory conditions. This approach could contribute to accelerating the development of TMD film manufacturing techniques in research laboratories.

Accepted 15 January 2026

Neutron reflectometry instrumentation at the ISIS source: current state

This article presents the current capabilities of the four time-of-flight neutron reflectometers at the ISIS Neutron and Muon Source, highlighting recent advances in instrumentation, automation and data analysis that enable high-precision studies of interfacial structures across diverse scientific fields.

Accepted 14 January 2026

Spin-contrast-variation small-angle neutron scattering study of fully and partially swollen silica-filled rubber

We report a spin-contrast-variation SANS study of fully and partially swollen silica-filled rubber.

Accepted 13 January 2026

Structure and composition of supported lipid bilayers: a comparison between solvent-assisted lipid bilayer and vesicle fusion methods

Neutron reflectometry is used to compare supported lipid bilayers (SLBs) formed by vesicle fusion and solvent-assisted lipid bilayer (SALB) methods, revealing structurally comparable architectures with minor differences in acyl chain thickness and low residual solvent incorporation. The study establishes the structural validity and limitations of the SALB approach, emphasizing the need for case-specific validation in membrane interaction studies.

Accepted 12 January 2026

Application of X-ray absorption spectroscopy with a laboratory X-ray powder diffractometer

Here, a method for high-quality X-ray absorption spectroscopy in transmission mode is proposed that can be easily applied on a laboratory X-ray powder diffractometer. Such application may contribute to the wider use of this powerful technique in materials research laboratories.

Accepted 7 January 2026

Probing protein dynamics using ultrafast X-ray techniques: a simulation study of feasibility and practices

This work uses molecular dynamics simulations to model ultrafast X-ray studies of proteins under static electric fields. It successfully captures various protein dynamics in response to external stimuli, demonstrating the feasibility of using ultrafast X-ray photon correlation spectroscopy to study protein dynamics.

Accepted 6 January 2026

Compact tape-driven sample delivery system for serial femtosecond crystallography

A tape-driven liquid sample droplet delivery system for serial femtosecond crystallography is described.

Accepted 29 December 2025

Software for small-angle neutron scattering contrast variation experiment planning and data analysis

The development of a new contrast software suite for small-angle neutron scattering (SANS) contrast variation (CV) experiments is reported. This new platform, integrated into the SASSIE-web framework, streamlines experiment planning, simulation and data analysis to improve the accessibility and efficiency of SANS CV studies for multi-component biological complexes.

more ...
Journal logoJournal of Synchrotron Radiation Journal of
Synchrotron Radiation

Accepted 3 February 2026

Channel-cut monochromator withstanding incident powers above 400 W on undulator beamlines. Corrigendum


Accepted 28 January 2026

Comparing image quality of synchrotron and laboratory nano-CT scans: a round robin study

A multi-facility round-robin comparison of synchrotron- and laboratory-based nano-computed tomography using a standardized 3D phantom reveals superior resolution and acquisition speed at synchrotrons, while advanced laboratory systems achieve competitive image quality with extended scan times; phase contrast modalities further enhance structural visibility.

Accepted 28 January 2026

Multifunctional bending magnet beamline with a capillary optic for X-ray fluorescence studies of metals in tissue sections

We describe a bending magnet endstation for X-ray fluorescence studies of metal distributions in millimetre-sized biological specimens. An existing setup using Kirkpatrick-Baez mirrors with 10.5 µm spatial resolution was supplemented with a second scanning setup with a capillary optic with 6.5 µm resolution.

Accepted 28 January 2026

FPGA-Accelerated Streaming Data Reduction Achieving an Average Compression Ratio over 8000 in a 17.4 kHz, 840 kpixel CITIUS Detector for Quasi-Elastic Gamma-Ray Scattering

A high-throughput FPGA-accelerated data reduction and analysis pipeline combined with HPC computing enables the continuous handling of a 216 Gb ps data stream from QEGS experiments at SPring-8.

Accepted 27 January 2026

High-speed qu­antitative X-ray multi-contrast imaging with deep learning based modulated pattern analysis

This work presents a neural-network framework that accelerates X-ray multi-contrast imaging—simultaneously delivering absorption, phase, and dark-field, while maintaining high spatial resolution, and outperforms correlation-based methods in speed, achieving a favorable balance between resolution and throughput. The method is agnostic to the modulation source (sandpaper, coded masks, gratings), enabling flexible deployment across setups and supporting real-time 2D/3D quantitative imaging for high-speed, in situ studies in materials science and biomedical applications.

Accepted 21 January 2026

2D-RIXS: resonant inelastic X-ray scattering microscopy with high energy and spatial resolutions

A resonant inelastic X-ray scattering microscopy system with a spatial resolution of 1.0 µm combined with ultrahigh energy resolution in the soft X-ray regime has been established.

Accepted 21 January 2026

Fluorescence-line-selective soft X-ray absorption spectroscopy: a novel approach to element-specific electronic structure analysis


Accepted 20 January 2026

Coherence evaluation and first demonstration of multi-contrast X-ray computed tomography on NanoTerasu BL09W with an X-ray Talbot interferometer

Coherence properties were evaluated and multi-contrast X-ray computed tomography was demonstrated using an X-ray Talbot interferometer on the NanoTerasu BL09W beamline. The results confirm the high spatial coherence and imaging performance of the source, paving the way for advanced X-ray phase imaging.

Accepted 19 January 2026

A fast X-ray shutter for high-power beams

A fast thermally resilient X-ray shutter achieves 2 ms switching under heat loads above 20 W, enabling efficient photon use and minimizing radiation damage at fourth-generation synchrotron sources.

Accepted 14 January 2026

Non-uniform interval-pulse X-ray photon correlation spectroscopy for reduced exposure

In this work, non-uniform interval-pulse X-ray photon correlation spectroscopy enabled the measurement of dynamics efficiently while reducing X-ray exposure by two orders of magnitude. This approach facilitates dense delay-time sampling and minimizes radiation damage, offering a powerful tool for studying sensitive systems.

more ...IUCrJ
Accepted 16 January 2026

Round robin on structure analysis from 3D electron diffraction data

This blind test uses three known samples to determine the accuracy limits of 3D electron diffraction and to assess various challenges. The study aims to evaluate how well different users with diverse experimental setups can perform tasks such as hydrogen-atom detection, mixed occupancy analysis and absolute structure determination. By comparing results across multiple participants and platforms, we can gauge the reliability of the method and identify potential areas for improvement in 3D electron diffraction techniques.

Accepted 12 December 2025

Modelling of radiation damage and beam-induced heating of room-temperature samples at extremely high flux MX beamlines

Modelling of radiation damage and beam-induced heating at extremely high flux macromolecular crystallography beamlines is presented.
Journal logoIUCrData
IUCrData

Accepted 2 February 2026

Orthorhombic polymorph of 4-(2,2′:6′,2′′-terpyridin-4′-yl)aniline

Crystallographic data for the title compound, C21H16N4, are reported herein. The compound was recrystallized from a methanol/aceto­nitrile solvent system at 298 K. It crystallizes in the Pca21 space group at 100 K and displays inter­molecular hydrogen bonding, through N—H⋯N contacts, and π–π inter­actions.


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