Results 81 to 90 of about 18,738 (216)

How to construct a coordinate representation of a Hamiltonian operator on a torus [PDF]

, 1995
The dynamical system of a point particle constrained on a torus is quantized \`a la Dirac with two kinds of coordinate systems respectively; the Cartesian and toric coordinate systems.
Ishikawa, S., Miyazaki, T., Yamamoto, K., Yamanobe, M.   +3 more
core   +2 more sources

Crystal structure and Hirshfeld surface analysis of dichlorido[2-(3-cyclopentyl-1,2,4-triazol-5-yl-κN4)pyridine-κN]palladium(II) dimethylformamide monosolvate

Acta Crystallographica Section E: Crystallographic Communications
This study presents the synthesis, characterization and Hirshfeld surface analysis of the title mononuclear complex, [PdCl2(C12H14N4)]·C3H7NO. The compound crystalizes in the P21/c space group of the monoclinic system.
Viktoriya V. Dyakonenko, Dmytro M. Khomenko, Roman O. Doroshchuk, Ganna V. Ivanova, Rostyslav D. Lampeka   +4 more
doaj   +1 more source

3-{(E)-[4-(4-Hydroxy-3-methoxyphenyl)butan-2-ylidene]amino}-1-phenylurea: crystal structure and Hirshfeld surface analysis

Acta Crystallographica Section E: Crystallographic Communications, 2018
Two independent molecules (A and B) comprise the asymmetric unit of the title compound, C18H21N3O3. The urea moiety is disubstituted with one amine being linked to a phenyl ring, which is twisted out of the plane of the CN2O urea core [dihedral angles ...
Ming Yueh Tan, Karen A. Crouse, Thahira B. S. A. Ravoof, Mukesh M. Jotani, Edward R. T. Tiekink   +4 more
doaj   +1 more source

Supramolecular study, Hirshfeld analysis and theoretical study of 6-methoxyquinoline N-oxide dihydrate [PDF]

, 2013
In the crystal structure of 6-methoxyquinoline N-oxide dihydrate, C10H9NO2 center dot 2H(2)O, (I), the presence of two-dimensional water networks is analysed.
Hernandez, Geraldine, Kennedy, Alan, Moreno-Fuquen, Rodolfo, Morrison, Catriona A.   +3 more
core   +1 more source

(Tris{2-[(5-chloro-2-oxidobenzylidene-κO)amino-κN]ethyl}amine-κN)ytterbium(III): crystal structure and Hirshfeld surface analysis

Acta Crystallographica Section E: Crystallographic Communications, 2016
The YbIII atom in the title complex, [Yb(C27H24Cl3N4O3)] [systematic name: (2,2′,2′′-{(nitrilo)tris[ethane-2,1-diyl(nitrilo)methylylidene]}tris(4-chlorophenolato)ytterbium(III)], is coordinated by a trinegative, heptadentate ligand and exists within an ...
See Mun Lee, Kong Mun Lo, Sang Loon Tan, Edward R. T. Tiekink   +3 more
doaj   +1 more source

The effect of chalcogen substitution on the structure and spectroscopy of 4,7-dimethyl-2: H -chromen-2-one/thione analogues [PDF]

, 2017
4,7-Dimethyl-2H-chromen-2-one (1) and its novel sulfur analogue 4,7-dimethyl-2H-chromen-2-thione (2) were synthesized and fully characterized by spectroscopic methods and mass spectrometry. The crystal structure of compound 2 has been determined by X-ray
Delgado Espinosa, Zuly Yuliana, Echeverría, Gustavo Alberto, Erben, Mauricio Federico, Mahmood, Shamsul, Piro, Oscar Enrique, Saeed, Aamer   +5 more
core   +2 more sources

N-(6-Methoxypyridin-2-yl)-1-(pyridin-2-ylmethyl)-1H-pyrazole-3-carboxamide: crystal structure and Hirshfeld surface analysis

Acta Crystallographica Section E: Crystallographic Communications, 2018
The title compound, C16H15N5O2, adopts the shape of the letter L with the dihedral angle between the outer pyridyl rings being 78.37 (5)°; the dihedral angles between the central pyrazolyl ring (r.m.s.
Vivek C. Ramani, Rina D. Shah, Mukesh M. Jotani, Edward R. T. Tiekink   +3 more
doaj   +1 more source

2-[(1E)-({[(Benzylsulfanyl)methanethioyl]amino}imino)methyl]-6-methoxyphenol: crystal structure and Hirshfeld surface analysis

Acta Crystallographica Section E: Crystallographic Communications, 2016
The title dithiocarbazate ester, C16H16N2O2S2, comprises two almost planar residues, i.e. the phenyl ring and the remaining 14 non-H atoms (r.m.s. deviation = 0.0410 Å). These are orientated perpendicularly, forming a dihedral angle of 82.72 (5)°.
Enis Nadia Md Yusof, Mukesh M. Jotani, Edward R. T. Tiekink, Thahira B. S. A. Ravoof   +3 more
doaj   +1 more source

Adsorption and absorption of Boron, Nitrogen, Aluminium and Phosphorus on Silicene: stability, electronic and phonon properties

, 2013
Ab initio calculations within the density-functional theory formalism are performed to investigate the chemical functionalization of a graphene-like monolayer of silicon - silicene - with B, N, Al or P atoms.
Partoens, Bart, Peeters, François M., Sivek, Jozef, Şahin, Hasan   +3 more
core   +1 more source

2-[(4-Chlorophenyl)sulfanyl]-2-methoxy-1-phenylethan-1-one: crystal structure and Hirshfeld surface analysis

Acta Crystallographica Section E: Crystallographic Communications, 2018
The title compound, C15H13ClO2S, comprises (4-chlorophenyl)sulfanyl, benzaldehyde and methoxy residues linked at a chiral methine-C atom (the crystal is racemic).
Ignez Caracelli, Julio Zukerman-Schpector, Henrique J. Traesel, Paulo R. Olivato, Mukesh M. Jotani, Edward R. T. Tiekink   +5 more
doaj   +1 more source