Results 1 to 10 of about 4,068,886 (304)
Molecules, 2021 Conformational and polymorphic states in the nitro-derivative of o-hydroxy acetophenone have been studied by experimental and theoretical methods. The potential energy curves for the rotation of the nitro group and isomerization of the hydroxyl group ...
Łukasz Hetmańczyk +7 more
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Molecules, 2023 6-Bromopyridine-2-carbaldehyde (abbreviated as BPCA) is used both as a building block in supramolecular chemistry and as a ligand for transition metal catalysts and luminescent complexes.
Anna Luiza B. Brito +3 more
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Low loss waveguide-based Butler matrix with iris coupling control method for millimeterwave applications [PDF]
, 2021 This paper proposes a low loss 4×4 Butler matrix based on rectangular waveguide cavity resonators technology for millimeterwave beamforming network using iris coupling method.
A. Majid, H. +7 more
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Structure and IR Spectra of 3(5)-Aminopyrazoles and UV-Induced Tautomerization in Argon Matrix
Molecules, 2021 The prototropic tautomerism in 3(5)-aminopyrazoles was investigated by matrix isolation infrared (IR) spectroscopy, supported by DFT(B3LYP)/6-311++G(d,p) calculations.
Alina Secrieru +3 more
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Fast ortho-to-para conversion of molecular hydrogen in chemisorption and matrix-isolation systems
Frontiers in Chemistry, 2023 Molecular hydrogen has two nuclear-spin modifications called ortho and para. Because of the symmetry restriction with respect to permutation of the two protons, the ortho and para isomers take only odd and even values of the rotational quantum number ...
Hirokazu Ueta +3 more
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Molecules, 2022 Monomers of meta-fluorophenol (mFP) were trapped from the gas phase into cryogenic argon and nitrogen matrices. The estimated relative energies of the two conformers are very close, and in the gas phase they have nearly equal populations.
A. J. Lopes Jesus +3 more
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Molecules, 2021 1,4- and 1,5-disubstituted tetrazoles possess enriched structures and versatile chemistry, representing a challenge for chemists. In the present work, we unravel the fragmentation patterns of a chemically diverse range of 5-allyloxy-1-aryl-tetrazoles and
Alina Secrieru +2 more
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Photo-Induced Reactions between Glyoxal and Hydroxylamine in Cryogenic Matrices
Molecules, 2022 In this paper, the photochemistry of glyoxal–hydroxylamine (Gly–HA) complexes is studied using FTIR matrix isolation spectroscopy and ab initio calculations.
Barbara Golec +2 more
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Optical control of BaF molecules trapped in neon ice
New Journal of Physics, 2023 We have trapped BaF molecules in neon ice and used laser-induced fluorescence spectroscopy to map out their optical transitions. Our measurements show that the neon lattice does not significantly perturb certain optical transitions in trapped BaF ...
S J Li +3 more
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Matrix-Assisted Processes in CH4-Doped Ar Ices Irradiated with an Electron Beam
Methane, 2023 The relaxation processes induced by exposure of the Ar matrices doped with CH4 (0.1–10%) to an electron beam were studied with a focus on the dynamics of radiolysis products—H atoms, H2 molecules, CH radicals, and energy transfer processes.
Mykhailo Bludov +3 more
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