Results 21 to 30 of about 23,332 (237)

X-ray, Hirshfeld surface analysis, spectroscopic and DFT studies of polycyclic aromatic hydrocarbons: Fluoranthene and acenaphthene [PDF]

Journal of the Serbian Chemical Society, 2015
The X-ray structure, theoretical calculation, Hirshfeld surfaces analysis, IR and Raman spectra of fluoranthene and acenaphthene were reported. Acenaphthene crystallizes in the orthorhombic crystal system and space group P21ma, with crystal ...
Śmiszek-Lindert Wioleta, Michta Anna, Tyl Aleksandra, Małecki Grzegorz, Chełmecka Elżbieta, Maślanka Sławomir   +5 more
doaj   +1 more source

6,7-Dihydro-5H-pyrrolo[1,2-a]imidazole

IUCrData, 2020
The crystal structure of 6,7-dihydro-5H-pyrrolo[1,2-a]imidazole, C6H8N2, at 100 K has monoclinic (P21/n) symmetry. The molecule adopts an envelope conformation of the pyrrolidine ring, which might help for the relief torsion tension. The crystal cohesion
Oscar Morales-Collazo, Vincent M. Lynch, Joan F. Brennecke   +2 more
doaj   +1 more source

Synthesis, Characterization and Determination of the Crystal Structure of New Cadmium Coordination Polymers Based on Bridging Schiff-Base Pyridine Ligand; Investigation of Hirshfeld Surface Analysis [PDF]

شیمی کاربردی روز, 2020
Two new polymeric compounds of cadmium acetate and Schiff-base ligand 1,2-bis(1-(pyridine-4-yl)ethylydine)hydrazine, L, [Cd(OAc)2(L)]n ,(1) and [Cd(OAc)2(L)(H2O)]n , (2) were synthesized and characterized by single crystal X-ray diffraction analysis ...
Behrouz Notash, Mahnaz Sadat Zolfaghari, Bahareh Mir Mohammad Sadegh   +2 more
doaj   +1 more source

Crystal structures of 5-chloro-2-methoxybenzoates of Mn(II), Co(II), Ni(II) and Zn(II)

Eclética Química, 2018
The crystal and molecular structures of [bis(5-chloro-2- methoxybenzoate)tetraaquamanganese(II)], [pentaaqua(5-chloro-2-methoxybenzoato)cobalt(II)] (5- chloro-2-methoxybenzoate), [pentaaqua(5-chloro-2-methoxybenzoato)nickel(II)] (5-chloro-2 ...
K. Stêpniak, Wieslawa Ferenc, Beata Cristóvão, T. Lis   +3 more
doaj   +1 more source

A monoclinic polymorph of cysteamine hydrochloride

Acta Crystallographica Section E, 2010
The title compound (systematic name: 2-mercaptoethanaminium chloride), C2H8NS+·Cl−, the hydrochloride salt of cysteamine, in contrast to the previously reported triclinic polymorph [Kim et al. (2002). Polyhedron, 21, 225–228],
Saeed Ahmad, Muhammad Ashraf Shaheen, Helen Stoeckli-Evans   +2 more
doaj   +1 more source

(E)-6-(Furan-2-ylmethylidene)-6,7,8,9-tetrahydropyrido[2,1-b]quinazoline-11-thione

IUCrData, 2020
A quinazolinthione, C17H14N2OS, was synthesized by the condensation reaction of 6,7,8,9-tetrahydro-11H-pyrido[2,1-b]quinazolin-11-thione with furfural.
Akmal Tojiboev, Azizbek Nasrullaev, Kambarali Turgunov, Burkhan Elmuradov, Bakhodir Tashkhodjaev   +4 more
doaj   +1 more source

Structural, Growth and Optical Characterization of Guanidinium Sulphanilate (GSA) Single Crystal

Фізика і хімія твердого тіла
Guanidine Sulphanilate (GSA) single crystal was grown by slow evaporation growth method. Single crystal X-ray diffraction studies show that the crystal grows in a centro symmetric monoclinic system and its space group is P21/c.
R. Sreedevi, A. S. I. Joy Sinthiya, S. C. Vella Durai, T. Balu, P. Murugakoothan   +4 more
doaj   +1 more source

Síntese e caracterização estrutural do ligante isatina-3-(N4-benziltiossemicarbazona) e do seu complexo de mercúrio(II) Synthesis and structural characterization of the ligand isatin-3-(N4-benzylthiosemicarbazone) and its mercury(II) complex

Química Nova, 2010
The reaction of 4-(phenyl)thiosemicarbazide with isatin yielded a new ligand, isatin-3-(N4-benzylthiosemicarbazone). Isatin-3-(N4-benzylthiosemicarbazone) deprotonated in ethanol/KOH reacts with an ethanolic solution of Hg(NO3)2 to give a mercury complex.
Alexandra de Souza Fonseca, Gisele Louro Peres, Tomás Garcia Storino, Leandro Bresolin, Vanessa Santana Carratu, Vinícius F. Giglio, Estela dos Reis Crespan, Manfredo Hörner   +7 more
doaj   +1 more source

X-ray structural insights and computational analysis of the compound 5-ethyl-4-[(4-morpholinobenzylidene)amino]-2,4-dihydro-3H-1,2,4-triazole-3-thione

Acta Crystallographica Section E: Crystallographic Communications
The title compound, C15H19N5OS, crystallizes in the monoclinic crystal system, space group P21/c. The molecule adopts a non-planar geometry. A significant feature of the structure is the puckered six-membered morpholine ring, which adopts a chair ...
Syed Nizamuddin, T. N. Mahadeva Prasad, N. R. Sreenatha, C. L. Sharath, B. N. Lakshminarayana, K. A. Vishnumurthy   +5 more
doaj   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source