Structural investigation of four-centre photopolymerisation of bis-phthalamic bis-chalcone derivative in the crystalline state

Author(s):  
Anatoli V. Dobrodumov ◽  
Alexander V. Yakimanski ◽  
Galina N. Matveeva ◽  
Ingrid G. Voigt-Martin ◽  
Galina I. Nosova ◽  
...  
1983 ◽  
Vol 61 (8) ◽  
pp. 1756-1759
Author(s):  
Lidia Prajer-Janczewski ◽  
Krystyna Rudolk ◽  
Tadeusz Lis ◽  
Marian Janczewski ◽  
Janina Biskup

The structure of 2,7-(11,22-diono-12, 15,18.21-tetroxa-9,24-dithia)-hexadecylene-naphthalene was investigated by 1H and 13C nmr and mass spectrometry. An X-ray structural investigation indicated the dissymmetric ansa structure of this compound in the crystalline state.


2021 ◽  
pp. 100821
Author(s):  
Nurul Husna Norwawi ◽  
Siti Nor Fatihah Johari ◽  
Siti Nabilla Aliya Mohd Nizar ◽  
Siti Noor Farhana Ab Rahman ◽  
Ainizatul Husna Anizaim ◽  
...  

Author(s):  
Alfred Baltz

As part of a program to develop iron particles for next generation recording disk medium, their structural properties were investigated using transmission electron microscopy and electron diffraction. Iron particles are a more desirable recording medium than iron oxide, the most widely used material in disk manufacturing, because they offer a higher magnetic output and a higher coercive force. The particles were prepared by a method described elsewhere. Because of their strong magnetic interaction, a method had to be developed to separate the particles on the electron microscope grids.


2003 ◽  
Vol 771 ◽  
Author(s):  
Pavel I. Lazarev ◽  
Michael V. Paukshto ◽  
Elena N. Sidorenko

AbstractWe report a new method of Thin Crystal Film deposition. In the present paper we describe the method of crystallization, structure, and optical properties of Bisbenzimidazo[2,1-a:1',2',b']anthra[2,1,9-def:6,5,10-d'e'f']-diisoquinoline-6,9-dion (mixture with cis-isomer) (abbreviated DBI PTCA) sulfonation product. The Thin Crystal Film has a thickness of 200-1000 nm, with anisotropic optical properties such as refraction and absorption indices. X-ray diffraction data evidences a lyotropic liquid crystalline state in liquid phase and crystalline state in solid film. Anisotropic optical properties of the film make it useful in optical devices, e.g. liquid crystal displays.


2017 ◽  
Vol 62 (2) ◽  
pp. 19-28
Author(s):  
Onuc Cozar ◽  
◽  
Nicolae Cioica ◽  
Elena Mihaela Nagy ◽  
Constantin Coţa ◽  
...  

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