Zobrazeno 1 - 10
of 1 464
pro vyhledávání: '"W. Weissflog"'
Publikováno v:
Journal of Materials Chemistry; Apr2006, Vol. 16 Issue 17, p1634-1643, 10p
Publikováno v:
Liquid Crystals. 33:1513-1523
A new smectic type mesophase without in-plane order is presented which is formed by nitro substituted banana-shaped compounds. The structure of this phase is not yet known in detail. The growth of germs and also the textures point to a helicoidal str
Autor:
N. Chattham, E. Korblova, Joseph E. Maclennan, Noel A. Clark, W. G. Jang, G. Pelzl, R.-F. Shao, Cyrille Boyer, David M. Walba, W. Weissflog, Joseph A. Zasadzinski, M. Nakata, Y. Takanishi, O. Mondainn-Monval, Hideo Takezoe, Junji Watanabe, Liang-Chy Chien, David A. Coleman, Darren R. Link, Jonathan Fernsler
Publikováno v:
Science. 301:1204-1211
Any polar-ordered material with a spatially uniform polarization field is internally frustrated: The symmetry-required local preference for polarization is to be nonuniform, i.e., to be locally bouquet-like or “splayed.” However, it is impossible
Publikováno v:
Liquid Crystals. 29:1101-1104
We have performed resonant X-ray scattering on two bent-core liquid crystal compounds exhibiting the B2 phase using three sample geometries: free-standing film and two others with free surface arrangements. The results conclusively demonstrate the tw
Manipulation of Supramolecular Chirality in Bicontinuous Networks of Bent-Shaped Polycatenar Dimers.
Autor:
Cao Y; Shaanxi International Research Center for Soft Matter, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.; Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, Guangzhou, 510641, China.; MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an, 710049, P. R. China., Zhao Y; Shaanxi International Research Center for Soft Matter, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, P. R. China., Tan T; Shaanxi International Research Center for Soft Matter, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, P. R. China., Liu F; Shaanxi International Research Center for Soft Matter, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, P. R. China., Alaasar M; Institute of Chemistry, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Street 2, Halle, 069120, Germany.; Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt.
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2024 Oct 21, pp. e202403586. Date of Electronic Publication: 2024 Oct 21.
Publikováno v:
Zeitschrift für Naturforschung A. 56:658-662
Thermodynamic measurements have been carried out on the binary system of a swallow-tailed liquid crystal A = bis{[2,2-di(n-hexyloxycarbonyl)ethenyl]phenyl} biphenyl-4,4'-dicarboxylate (4DS6) and B = 4-n-octyloxyphenyl 4-rc-pentyloxybenzoate (5O/O8).
Publikováno v:
Zeitschrift für Naturforschung A. 56:262-266
Densities have been determined for two 5-n-alkyl-2-(4-isothiocyanatophenyl)-1,3-dioxanes (6DBT, 10DBT), 4-n-tetradecyl-4'-cyanobiphenyl (14CB), 4-n-octyl-4'-thiocyanatobiphenyl (8BT) and two laterally aryl-branched mesogens 4-cyanobenzyl 5-(4-n-octyl
Autor:
A. Würflinger, W. Weissflog
Publikováno v:
Zeitschrift für Naturforschung A. 55:936-940
The phase diagram of 4-cyanobenzyl-5-(4-«-octyloxybenzoyloxy)-2-undecyloxybenzoate (4CNOUB) has been established with differential thermal analysis (DTA). The pressure range for the smectic A phase is limited, resulting in a triple point at 165 MPa
Publikováno v:
Zeitschrift für Naturforschung A. 55:823-827
P, Vm , T data have been measured for the nematic and isotropic phases of 3-cyanobenzyl 2,5-bis (4-n-octyloxybenzoyloxy)benzoate between 273 and 423 K and up to 250 MPa. The volume changes accompanying the crystal -nematic and nematic -isotropic tran
Publikováno v:
Journal of Molecular Structure. 415:205-214
The crystal and molecular structure of the title compound 1a has been determined by X-ray analysis. 1a crystallizes in space group PI with two molecules in a unit cell of dimensions: a = 5.516(1), b = 13.186(4), c = 18.364(5) A , α = 95.82(3), β =