Results 11 to 20 of about 75,364 (265)

Self-assembly of new cobalt complexes based on [Co (SCN)4], synthesis, empirical, antioxidant activity, and quantum theory investigations

open access: yesScientific Reports, 2022
The cobalt (II) complexes have been synthesized from the reaction of the cationic entities (3,4-dimethylaniline (1) and histamine (2)) with metallic salt CoCl2⋅6H2O and thiocyanate ion (SCN−) as a ligand in H2O/ethanolic solution and processing by the ...
Amal Ferchichi   +7 more
doaj   +1 more source

Crystal structure and intermolecular interaction energy calculation in N,N′-bis(4-iodobenzylidene)-ethane-1,2-diamine [PDF]

open access: yesشیمی کاربردی روز, 2019
A new potentially bidentate Schiff base ligand was synthesized from condensation reaction between ethylenediamine and 4-iodobenzaldehyde. The crystal structure of the compound was studied by single-crystal X-ray diffraction and it was shown that the ...
reza kia, Soheil Mahmoudi
doaj   +1 more source

An X-Ray Investigation of the Nickel-Boron System. The Crystal Structures of Orthorhombic and Monoclinic Ni4B3. [PDF]

open access: yesActa Chemica Scandinavica, 1959
The Ni-B system was investigated with x-ray powder and single-crystal methods in the range Ni/sub 3/B to NiB. In addition to the previously known intermediate phases, Ni/sub3/B, Ni/sub 2/B, and NiB, the existence of two other phases, both with the ideal compositions Ni/sub 4/B/sub 3/ but one orthorhombic and the other monoclinic, was established.
Stig Rundqvist   +5 more
openaire   +1 more source

Synthesis and Catalytic Application of Two Mononuclear Complexes Bearing Diethylenetriamine Derivative Ligand

open access: yesMolecules, 2020
Two mononuclear zero-dimensional Ni(II) and Zn(II) complexes bearing diethylenetriamine derivative ligand, namely [NiL(CH3COO)2(H2O)] (1) and [ZnL(CH3COO)2] (2) [L = N, N’-bis(2-hydroxybenzyl)diethylenetriamine], were synthesized under reflux conditions.
Chao Liu   +3 more
doaj   +1 more source

An orthorhombic polymorph of 1-benzyl-1H-benzimidazole

open access: yesActa Crystallographica Section E, 2010
The title compound, C14H12N2, in contrast to the previously reported monoclinic polymorph [Lei et al. (2009). Acta Cryst. E65, o2613], crystallizes in the orthorhombic crystal system.
Ying-jun Zhang   +4 more
doaj   +1 more source

Kinetic studies of oxidative coupling of methane on samarium oxide [PDF]

open access: yes, 1995
Kinetic behaviour of three samples of samarium oxide (cubic (Sm-1 ), monoclinic (Sm-3) and mixed cubic-monoclinic (Sm 2) ) were studied in the oxidative coupling of methane using a gradientless flow circulation system.
Ross, J.R.H., Vereshchagin, S.N.
core   +2 more sources

Synthesis of chemically pure b-phase powders of gallium(III) oxide

open access: yesКонденсированные среды и межфазные границы, 2022
The purpose of our study was to develop an optimal procedure for the synthesis of the b-phase of gallium(III) oxide with a high degree of chemical purity.
Alexander M. Samoylov   +3 more
doaj   +1 more source

Anisotropy, phonon modes, and lattice anharmonicity from dielectric function tensor analysis of monoclinic cadmium tungstate [PDF]

open access: yes, 2017
We determine the frequency dependence of four independent CdWO$_4$ Cartesian dielectric function tensor elements by generalized spectroscopic ellipsometry within mid-infrared and far-infrared spectral regions.
Knight, S.   +3 more
core   +3 more sources

Monoclinic polymorph of 2,5-bis[4-(dimethylamino)styryl]-3,6-dimethylpyrazine

open access: yesActa Crystallographica Section E, 2011
The title compound, C26H30N4, was prepared by condensation of tetramethylpyrazine and dimethylaminobenzaldehyde and crystallizes from chloroform/methanol in two different forms.
Janina Fischer   +3 more
doaj   +1 more source

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

open access: yesIUCrData, 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   +2 more
doaj   +1 more source

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