Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Karsten Pelz"'
Autor:
Martin W. Schröder, J. Lorenzo Chao, Wolfgang Weissflog, Ute Baumeister, Zinaida Vakhovskaya, Horst Kresse, Karsten Pelz
Publikováno v:
Phase Transitions. 82:470-484
Three new homologous bent-shaped mesogens with terminal octyloxy P8, decyloxy P10 and dodecyloxy P12 groups were synthesized. Calorimetric, X-ray and electro-optic investigations prove the existence of two mesophases of the SmCPA type for compound P1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03e83e83c2fc2487925dcfc8e4c7cda9
https://doi.org/10.1080/01411590902910380
https://doi.org/10.1080/01411590902910380
Publikováno v:
Liquid Crystals. 33:803-809
Kojic acid was used to synthesize bent‐core mesogens. Antiferroelectric polar smectic mesophases, an oblique and a rectangular columnar mesophase were found. The mesophases were characterized by X‐ray scattering, electro‐optical measurements, p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cddc5d0a232097afb8f849bc7f8a712
https://doi.org/10.1080/02678290600723112
https://doi.org/10.1080/02678290600723112
Autor:
Natalia Boiko, Ute Baumeister, Karsten Pelz, Giancarlo Galli, Wolfgang Weissflog, Siegmar Diele, Bedrich Kosata, Elena V. Agina, Valery Shibaev, Gerhard Pelzl, Simona Samaritani, G. M. Tamba
Publikováno v:
Università di Pisa-IRIS
Systematic studies on symmetric twin molecules composed of two bent-core mesogenic units are reported for the first time. It is shown that the formation of mesophases mainly depends on the chemical structure of the spacer. A sufficiently flexible spa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3537042c094e6d0e0ff8539469c0ab49
https://doi.org/10.1021/cm051918y
https://doi.org/10.1021/cm051918y
Autor:
Horst Kresse, Karsten Pelz, Wolfgang Weissflog, Siegmar Diele, Maria Gabriela Tamba, Zinaida Vakhovskaya, Bedrich Kosata, Gerhard Pelzl
Publikováno v:
Soft Matter. 2:60-65
Three mesogenic dimers have been synthesized in which a five-ring bent-core moiety is connected with different calamitic units via flexible spacers. The mesophase behavior of the dimers have been investigated by polarizing microscopy, differential sc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbe90ad6dc9de182d4562d6c674e7431
https://doi.org/10.1039/b511140d
https://doi.org/10.1039/b511140d
Publikováno v:
Liquid Crystals. 30:1151-1158
Two new compounds containing bent-core mesogens are presented in which a flexible central methyleneoxycarbonyl unit acts as the bent fragment. The compounds form different two-dimensional columnar (‘B1’) phases both with a rectangular lattice but
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d2d30cb7e41d5cdc2b004602bceeb7e
https://doi.org/10.1080/02678290310001601987
https://doi.org/10.1080/02678290310001601987
Publikováno v:
ResearcherID
New homologous symmetric dimers are presented in which two-ring monomers are connected by a flexible spacer and perfluorinated chains are introduced in terminal positions. The mesophase behaviour depends on the length and structure of the spacer and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2a359a5c6b07c4b079cd5be4dfe28c2
https://doi.org/10.1080/02678290110058614
https://doi.org/10.1080/02678290110058614
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 364:279-288
A new homologous series of mesogenic dimers with an odd-numbered flexible spacer is presented. It is shown that the short-chained members of the series form a SmC phase, only, whereas the longer-chained homologues exhibit a SmA phase. The layer spaci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c64041f7e85925c07e9da8facda9e66
https://doi.org/10.1080/10587250108024996
https://doi.org/10.1080/10587250108024996
Autor:
Horst Bögel, Karsten Pelz, Henrik Junicke, Frank W. Heinemann, Karla Schenzel, Dirk Steinborn
Publikováno v:
Zeitschrift f�r anorganische und allgemeine Chemie. 623:603-607
[Na(15-cr-5)]2[PtCl6] · 2 H2O reacts with pyridine in water as solvent to give cis-[PtCl4(py)2] (1) and in MeCN, DMF or in CH2Cl2 to give trans-[PtCl4(py)2] (2). The substitution reaction can be accelerated by irradiation with visible light. 1 isome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d570788e1112dbd6c8b1da572353db2d
https://doi.org/10.1002/zaac.19976230194
https://doi.org/10.1002/zaac.19976230194
Autor:
Kurt Merzweiler, Jörg Magull, Karla Schenzel, Michael Gerisch, Horst Bögel, and Karsten Pelz, Dirk Steinborn
Publikováno v:
Organometallics. 15:2454-2457
Summary: Hexachloroplatinic acid reacts with n-butanol to give the but-2-ene complex H[PtCl3(η2-C4H8)] (3) as intermediate, which reacts with trimethylsilyl-substituted acetylenes R‘C⋮CSiMe3 (R‘ = H, Me, SiMe3) with cleavage of the silyl group
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0535cd54d21d83c55470543a1f023268
https://doi.org/10.1021/om950963k
https://doi.org/10.1021/om950963k
Autor:
Xiangbing Zeng, Robert Kieffer, Marko Prehm, Goran Ungar, Carsten Tschierske, Karsten Pelz, Feng Liu
Publikováno v:
Nature communications. 3
Nanopatterning by molecular self-assembly has been a topic of intense research in pursuit of 'bottom-up' methods of generating structures for use in nanotechnology. The systems most widely studied have been two- and three-dimensional morphologies of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc63ed4bdc9b068fc17aa1930d7c8d3c
https://pubmed.ncbi.nlm.nih.gov/23033080
https://pubmed.ncbi.nlm.nih.gov/23033080