Results 111 to 120 of about 2,921 (221)
Magnetic Resonance in Chemistry, Volume 64, Issue 2, Page 165-169, February 2026.The structures of the biflavones loniflavone and methylloniflavone from Lonicera japonica have to be revised to ochnaflavone and methylloniflavone based on two NMR approaches without derivatization. ABSTRACT For the structure elucidation of biflavones in which the subunits are linked by an ether bridge, two NMR spectroscopic approaches are shown to ...
Olaf Kunert +5 more
wiley +1 more source
International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 2, Page 1218-1228, 10 February 2026.ABSTRACT Natural soils often exhibit clearly anisotropic mechanical properties, yet this characteristic is frequently overlooked in numerical models due to the practical challenges of determining anisotropic parameters. As a result, the influence of anisotropy remains difficult to anticipate, and engineers have limited tools to incorporate it into ...
Abdelilah Errahali +3 more
wiley +1 more source
Angewandte Chemie, Volume 138, Issue 4, 22 January 2026.An intramolecular Mannich reaction (A/B/E/F rings) and intermolecular Diels–Alder reactions (C/D rings) afforded a cage‐like hexacyclic core skeleton of denudatine alkaloids. Derivatization of the hexacyclic intermediate enabled the first asymmetric total syntheses of four denudatine alkaloids: (–)‐cochlearenine, (–)‐macrocentrine, (–)‐dictizine, and (–
Shun Kawano +5 more
wiley +2 more sources
Long term performance of the COSY/Jülich polarized ion source [PDF]
, 2014 R. Gebel +3 more
openalex +1 more source
Pest Management Science, Volume 82, Issue 2, Page 1765-1775, February 2026.Murayaquinone isolated from the pine endophyte Streptomyces sp. AN140557 exhibits potent, dose‐dependent nematicidal activity and egg‐hatching inhibition against the pine wood nematode. It effectively inhibited pine wilt disease in greenhouse tests, suggesting potential as a promising biocontrol agent.
Min‐Kyoung Kang +2 more
wiley +1 more source
On the Differential Algebra Underlying the COSY INFINITY Computer Code Due to M. Berz
, 1992 V. Garczynski
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Synthesis and Characterization of Glyco‐Decorated Silsesquioxane‐Metallosalen Complexes
ChemistrySelect, Volume 11, Issue 5, 5 February 2026.Glyco‐decorated COSS‐metallosalen complexes were synthesized and characterized. Their metal ion‐dependent D4h or S4 geometry was experimentally verified by single‐crystal X‐ray diffraction using model compounds with the same tetranuclear core. Ribonuclease activity of these complexes was studied, but it remained modest compared to other metal ion‐based
Hanni Haapsaari +4 more
wiley +1 more source
Ultrabroadband 1D and 2D NMR Spectroscopy
Angewandte Chemie, Volume 138, Issue 2, 9 January 2026.Optimal control‐derived saturation pulses allow 1D and 2D NMR spectroscopy covering spectral ranges in the MHz range. Next to a multitude of nuclei even multinuclear spectra are possible. Abstract The chemical shift range of many NMR‐active isotopes cannot be excited in a single experiment by classical hard pulse high‐resolution spectroscopy or even ...
Yannik T. Woordes +11 more
wiley +2 more sources
Small Structures, Volume 7, Issue 2, February 2026.Ab initio thermodynamics and GCMC simulations reveal a cooperative two‐step CO2 pore filling mechanism in CALF‐20. The study captures adsorption energetics and loading‐dependent structural changes, reproducing experimental isotherms with chemically accurate predictions.
Kaido Sillar +3 more
wiley +1 more source
Correlation of history, reality and art in tetralogies of novels dedicated to a great war: Mikhail A. Sholokhov: Mihailo Lalic: Dobrica Cosic [PDF]
Godisnjak Fakulteta za kulturu i medije - komunikacije, mediji, kultura, 2015 openaire +1 more source