Results 11 to 20 of about 693 (91)

Aluminum Adducts of NHC‐Silylphosphinidenes and Their Isosteric Analogy to NHC‐Disilylsilylene Complexes

open access: yesZeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 1, January 6, 2026.
Aluminum–silicon adducts of NHC‐phosphinidenides are synthesized and structurally characterized. Their bonding and electronic structures are compared with those of isosteric NHC‐disilylsilylene complexes by DFT, NBO, and QTAIM analyses, highlighting the interplay of covalent versus coordinative interactions and emphasizing the significance of ...
Jayeeta Bhattacharjee   +3 more
wiley   +1 more source

50th anniversary of the Stanford SSRL synchrotron radiation and protein crystallography initiative

open access: yesJournal of Synchrotron Radiation, Volume 33, Issue 1, Page 1-6, January 2026.
We provide a historical introduction and our thoughts on the current trends including some based on papers in this special issue of Journal of Synchrotron Radiation celebrating the 50th Anniversary of the Stanford SSRL synchrotron radiation and protein crystallography initiative led by Keith Hodgson.We provide a historical introduction spanning the ...
John R. Helliwell   +2 more
wiley   +1 more source

Single mutations to tyrosine or glutamate improve the crystallizability and crystal diffraction properties of a flexible two‐domain protein

open access: yesActa Crystallographica Section F, Volume 82, Issue 1, Page 4-13, January 2026.
In its wild‐type form, the flexible two‐domain protein InlB392 yielded poorly reproducible crystals that diffracted to low resolution. Single surface substitutions to tyrosine (T336Y) or glutamate (V333E) yielded well diffracting crystals, suggesting that surface properties, rather than interdomain flexibility, might be the primary impediment to ...
Christina Geerds, Hartmut H. Niemann
wiley   +1 more source

Crystal structure of Methanococcus jannaschii dihydroorotase with substrate bound

open access: yesActa Crystallographica Section F, Volume 82, Issue 1, Page 23-31, January 2026.
We present the 1.87 Å resolution structure of M. jannaschii dihydroorotase complexed with the substrate carbamoyl aspartate at room temperature. Contrary to expectations, a flexible loop which is important in catalysis and closes upon substrate binding in order to stabilize the substrate and transition state is observed in both the loop‐out and loop‐in
Jacqueline Vitali   +3 more
wiley   +1 more source

Differentiating between F and OH Ligands in Homologous Gold(III) Complexes beyond X‐Ray Crystallography

open access: yesEuropean Journal of Inorganic Chemistry, Volume 28, Issue 34, December 1, 2025.
A subtle hydrogen‐bonding lock enables the unequivocal structural differentiation between fluoride and hydroxide in the unusual couple of homologous organogold(III) complexes [PPh4][(CF3)3AuF] and [PPh4][(CF3)3Au(OH)] (see adjacent figure). The homologous fluoride and hydroxide complexes of gold(III) [PPh4][(CF3)3AuX] [X = F (1), OH (2)] have been ...
Alberto Pérez‐Bitrián   +5 more
wiley   +1 more source

Series of Microporous Redox‐Active Pillared Metal–Organic Frameworks Based On Alloxazine Ligands

open access: yesChemistryOpen, Volume 14, Issue 12, December 2025.
Two series of robust pillared metal–organic frameworks using a redoactive ligand based on alloxazine and transition metals have been evidenced by XRD. The compounds have high decomposition temperatures, and their sorption properties are measured, revealing relatively low surface areas and a moderate uptake of CO2 and C2H4 at high pressures.
Jaison Casas   +5 more
wiley   +1 more source

Triple Calcium Binding Stoichiometry in the Monoclinic Crystal Form of Protracted Insulin

open access: yesSmall Structures, Volume 6, Issue 12, December 2025.
Crystallographic analyses reveal insulin hexamers coordinated by three Ca2+ ions within the GluB13 cavity, visualized in monoclinic crystals at cryogenic and ambient conditions. This unique binding stabilizes the R6 state through inter‐subunit coordination while preserving canonical Zn2+–HisB10 interactions.
Esra Ayan   +9 more
wiley   +1 more source

Crystal structure analysis of van der Waals layered phosphorus chalcogenide CuVP2S6

open access: yesActa Crystallographica Section B, Volume 81, Issue 6, Page 565-571, December 2025.
Two‐dimensional van der Waals layered compound CuVP2S6 is studied by transmission electron microscopy and single‐crystal X‐ray diffraction. Rotational microtwin structures, which may be typical and characteristic of two‐dimensional van der Waals compounds, are observed.The crystal structure of CuVP2S6 is investigated by transmission electron microscopy
Nur Farhana Hasmuni   +6 more
wiley   +1 more source

Completion of partial structures using Patterson maps with the CrysFormer machine‐learning model

open access: yesActa Crystallographica Section D, Volume 81, Issue 12, Page 668-677, December 2025.
We integrate existing machine learning‐based protein structure‐prediction methods with X‐ray crystallography by completing partial structures derived from AlphaFold predictions and the corresponding Patterson map information. The CrysFormer results are promising when applied to an initial data set of 15‐residue fragments in P21 unit cells.Protein ...
Tom Pan   +4 more
wiley   +1 more source

Asymmetric Ligand Field Effects in Electron‐Rich Heterometallic Extended Metal Atom Chain Compounds

open access: yesChemistry – A European Journal, Volume 31, Issue 65, November 20, 2025.
Synthesis of multimetallic compounds with modifiable scaffolding ligands raises questions about the distribution of electronic effects in heterometallic systems. Here we investigate the asymmetry of the substituent effects in a modified 2,2′‐dipyradylamine ligand applied to a heterotrimetallic extended metal atom chain (HEMAC) framework.
Rebecca K. Walde   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy