Results 91 to 100 of about 19,829 (269)

Extended Hirshfeld: atomic charges that combine accurate electrostatics with transferability [PDF]

open access: yes, 2014
C
Ayers, Paul W   +3 more
core   +1 more source

Electrostatic Molecular Interaction from X-ray Diffraction Data. II. Test on Theoretical Pyrazine Data [PDF]

open access: yes, 1983
In a previous paper [Moss & Feil (1981). Acta Cryst. A37, 414-421] a method was reported to calculate the electrostatic potential and the electrostatic interaction energy from single-crystal X-ray diffraction data.
Feil, Dirk, Moss, Grant
core   +3 more sources

Elucidation of molecular structure and electronic properties of efavirenz monomer and dimer using DFT and Hirshfeld surface analysis

open access: yesDiscover Applied Sciences
Efavirenz, an antiviral medication for HIV, is known for its significant binding to inhibit HIV-1 reverse transcriptase. In this study, we highlighted the structural and electronic properties of both the monomer and dimer through computational ...
Tirth Raj Paneru   +2 more
doaj   +1 more source

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

open access: yesActa 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   +3 more
doaj   +1 more source

Hydrazinium 2-amino-4-nitrobenzoate dihydrate: crystal structure and Hirshfeld surface analysis [PDF]

open access: yesActa Crystallographica Section E Crystallographic Communications, 2017
In the anion of the title salt hydrate, H5N2+·C7H5N2O4−·2H2O, the carboxylate and nitro groups lie out of the plane of the benzene ring to which they are bound [dihedral angles = 18.80 (10) and 8.04 (9)°, respectively], and as these groups are conrotatory, the dihedral angle between them is 26.73 (15)°.
Jámes L. Wardell   +2 more
openaire   +3 more sources

Distribution of Caustic-Crossing Intervals for Galactic Binary-Lens Microlensing Events [PDF]

open access: yes, 1999
Detection of caustic crossings of binary-lens gravitational microlensing events is important because by detecting them one can obtain useful information both about the lens and source star.
Han, Cheongho   +2 more
core   +2 more sources

Structural, Spectroscopic and Hirshfeld Surface Analysis of Anilinium Malonate

open access: yesAsian Journal of Chemistry, 2019
The comprehensive elucidation of the crystal structure, vibrational and Hirshfeld surface analysis of new crystalline product anilinium malonate C6H5NH3 +. C3H3O4 – are presented in this communication. Single crystals of anilinium malonate have been grown by the method of slow evaporation at room temperature.
F. Mary Anjalin   +3 more
openaire   +1 more source

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

open access: yesActa 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   +3 more
doaj   +1 more source

Site selectivity of halogen oxygen bonding in 5- and 6-haloderivatives of uracil [PDF]

open access: yes, 2019
Seven 5-and 6-halogenated derivatives of uracil or 1-methyluracil (halogen = Cl, Br, I) were studied by single crystal X-ray diffraction. In contrast with pure 5-halouracils, where the presence of N-H…O and C-H…O hydrogen bonds prevents the formation ...
Portalone, Gustavo
core   +1 more source

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