Results 21 to 30 of about 2,060,891 (297)

Synthesis and crystal structures of 1-benzoyl-4-(4-nitrophenyl)piperazine and 1-(4-bromobenzoyl)-4-phenylpiperazine at 90 K

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2022
Synthesis and crystal structures of 1-benzoyl-4-(4-nitrophenyl)piperazine, C17H17N3O3, (I) and 1-(4-bromobenzoyl)-4-phenylpiperazine, C17H17BrN2O, (II) are described.
Sreeramapura D. Archana   +4 more
doaj   +1 more source

Crystal structure of 9-methacryloylanthracene [PDF]

open access: yes, 2015
The authors would like to thank the Graduate College and Chemistry Department at Cleveland State University for support, the Ohio Supercomputing Center for a grant of computer time, and the National Science Foundation (CHE-0840446) for funds used to ...
Agrahari, Aditya   +4 more
core   +3 more sources

A temperature-dependent phase transformation of (E)-2-[(4-chloro-phen-yl)imino]-ace-naphthylen-1-one. [PDF]

open access: yes, 2017
The crystal structure determination based on 90 K data of the title imine ligand, C18H10ClNO, revealed non-merohedral twinning with three twin domains. In our experience, this is an indication of an ordering phase transition.
Bao, Lipiao, Olmstead, Marilyn M
core   +1 more source

Crystal structure and high-field magnetism of La2CuO4 [PDF]

open access: yes, 2006
Neutron diffraction was used to determine the crystal structure and magnetic ordering pattern of a La2CuO4 single crystal, with and without applied magnetic field.
A. Gozar   +16 more
core   +3 more sources

X‐ray diffraction characterization of multilayer semiconductor structures [PDF]

open access: yes, 1986
The analysis of double‐crystal x‐ray rocking curves of single‐crystal layered structures can give valuable information on layer strains, displacement of atoms from normal lattice sites (which reduces the structure factor), crystallographic ...
Paine, Bruce M., Vreeland, Thad, Jr.
core   +1 more source

Crystal structure of flucetosulfuron [PDF]

open access: yesActa Crystallographica Section E Crystallographic Communications, 2017
The title compound, {systematic name: 1-[3-({[(4,6-dimethoxypyrimidin-2-yl)carbamoyl]amino}sulfonyl)pyridin-2-yl]-2-fluoropropyl 2-methoxyacetate}, C18H22FN5O8S, is used as a herbicide (pyrimidinylsulfonylurea herbicide). The dihedral angle between the mean planes of the pyridine and pyrimidine rings is 86.90 (7)°.
Hyunjin Park   +3 more
openaire   +3 more sources

Electrical and Vibrational Studies of Na2K2Cu(MoO4)3

open access: yesAdvances in Materials Science and Engineering, 2017
The complex impedance of Na2K2Cu(MoO4)3 material has been investigated in the temperature range of 653–753 K and in the frequency range of 40 Hz–5 MHz.
Wassim Dridi   +2 more
doaj   +1 more source

Photonic Crystal Laser Accelerator Structures [PDF]

open access: yes, 2003
Photonic crystals have great potential for use as laser-driven accelerator structures. A photonic crystal is a dielectric structure arranged in a periodic geometry.
Cowan, Benjamin   +2 more
core   +2 more sources

The crystal structure of ruthenocene [PDF]

open access: yesActa Crystallographica, 1959
>Dicyclopentadienylruthenium, or ruthenocene, crystallizes in the orthorhombic space group Pnma with a = 7.13, b = 8.99, c = 12.81 A. There are four Ru(C/sub 5/H/sub 5/)/sub 2/ molecules per unit cell. The ruthenium atoms form approximately a face-centered lattice, and the cyclopentadienyl rings lie in an eclipsed configuration with respect to each ...
Hardgrove, George L.   +1 more
openaire   +2 more sources

Tamm states in one dimensional photonic crystals containing left-handed materials [PDF]

open access: yes, 2006
We present a theoretical study of electromagnetic surface waves localized at an interface separating a conventional uniform medium and a semi-infinite 1-D photonic crystal made of alternate left-handed metamaterial and right-handed material which we ...
Abdolrahman Namdar   +18 more
core   +2 more sources

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