Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Hans-Georg Kuball"'
Autor:
Claudia Romano, Pasqualino Maddalena, Fabio Borbone, Matthias Stolte, Antonio Roviello, Roberto Centore, Antonio Ambrosio, Antonio Carella, Sandra Fusco, Hans-Georg Kuball
Publikováno v:
Optical Materials. 34:724-728
Three new azo-polyurethanes containing the s-triazolo[3,4-b]thiadiazole heterocycle have been prepared and characterized. The polymers showed glass transition temperatures between 183 °C and 232 °C and a moderate to good thermal stability in air. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f872598fc2297782427581807ac425cb
https://doi.org/10.1016/j.optmat.2011.10.009
https://doi.org/10.1016/j.optmat.2011.10.009
Publikováno v:
Chemistry - A European Journal. 17:9984-9998
Phenothiazinyl merocyanine dyes with variable substitution patterns on the peripheral benzene ring were synthesized in good yields by Knoevenagel condensation of the corresponding phenothiazinyl aldehydes and N-methylrhodanine or indan-1,3-dione. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dfe44a57720767e027de09f58f6e8cda
https://doi.org/10.1002/chem.201100592
https://doi.org/10.1002/chem.201100592
Autor:
Alessia Quatela, Glauco Stracci, Graziano Archetti, Sandra Fusco, Roberto Centore, Hans-Georg Kuball, Pierluigi Riccio
Publikováno v:
Polymer. 49:186-191
Polymethacrylate and polycondensated polymers based on chromophores containing the s-triazolo[3,4-b]-thiadiazole heterocycle were synthesized. Chromophore and polymer preparations are described. Second order NLO measurements are reported for polymers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::328cf7ba92e1022047f0cfeb2f7b1a91
https://doi.org/10.1016/j.polymer.2007.11.016
https://doi.org/10.1016/j.polymer.2007.11.016
Publikováno v:
Liquid Crystals. 34:73-77
We report the use of chiral bis‐chelated imine‐alkoxytitanium complexes as dopants for the conversion of a nematic into a cholesteric phase. High helical twisting power (HTP) is obtained in the liquid crystalline mixture ZLI‐1695 (Merck, Darmst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aeb53832dc7159773074090ffe6cb1af
https://doi.org/10.1080/02678290601061496
https://doi.org/10.1080/02678290601061496
Publikováno v:
Monatshefte f�r Chemie - Chemical Monthly. 136:289-324
The results of the theory of the anisotropy of optical activity (ACD), especially of the circular dichroism (CD), in view of its application to the exciton chirality method was presented. In order to introduce the phenomenology some typical experimen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69acb12df3d2848ecafad332f8c040b3
https://doi.org/10.1007/s00706-005-0282-2
https://doi.org/10.1007/s00706-005-0282-2
Autor:
Hans-Georg Kuball
Publikováno v:
Enantiomer: A Journal of Sterochemistry. 7:197-205
Chiral anisotropic phases exhibit an elliptical birefringence and dichroism instead of the circular effects of isotropic dissymmetric and the linear effects of achiral anisotropic phases. Therefore, techniques to determine chiral effects of chiral an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02447a97c26292f8b191f6222440469f
https://doi.org/10.1080/10242430212880
https://doi.org/10.1080/10242430212880
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 365:867-874
The anisotropic circular dichroism (ACD) and the chiral induction (HTP) are two chirality measurements of very different kind. For two binaphthyls diagonal elements of the circular dichroism (CD) t...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::539d6466a46d7fcd59f13866712dcc51
https://doi.org/10.1080/10587250108025366
https://doi.org/10.1080/10587250108025366
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 352:195-204
For a description of the HTP with quantities determined by structural elements of a molecule, the chirality interaction tensor has been introduced. The diagonal elements of with respect to the prin...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb61005170bf0266908b9a66f5e82d2d
https://doi.org/10.1080/10587250008023177
https://doi.org/10.1080/10587250008023177
Publikováno v:
Liquid Crystals. 27:1357-1367
The polarized absorption spectra of derivatives of 3,4,9-perylenetricarboxylic acid and of 3,4,9,10-perylenetetracarboxylic acid dissolved in the nematic liquid crystal mixture ZLI 1695 have been recorded as a function of temperature. On the basis of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53982ac752cd0ff3f3bee195c0cb92e2
https://doi.org/10.1080/026782900423412
https://doi.org/10.1080/026782900423412
Autor:
Stefan Jorda, Max Rauner, Rainer Scharf, Thomas Otto, Hans-Georg Kuball, Jörg Wrachtrup, Bernd Gotsmann, Christoph Bruder
Publikováno v:
Physikalische Blätter. 56:6-19
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c278c18fb5e5b0c58e03d34d8cfe15c
https://doi.org/10.1002/phbl.20000561003
https://doi.org/10.1002/phbl.20000561003