Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Dietrich Prescher"'
Publikováno v:
Chinese Journal of Chemistry. 11:169-173
Radical addition of polyfluoroalkyl iodides to the CC double bond of diethyl allylphosphonate was carried out in CH2Cl2-H2O two-phase medium in the presence of sodium dithionite to give diethyl 3-polyfluoroalkyl-2-iodopropylphosphonates (3) in excell
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::191a546e707572f273b1b0120f03a212
https://doi.org/10.1002/cjoc.19930110211
https://doi.org/10.1002/cjoc.19930110211
Publikováno v:
Monatshefte f�r Chemie / Chemical Monthly. 134:1207-1213
Two ring-deuterated major metabolites of bis(2-ethylhexyl) phthalate were obtained in excellent yields by means of an improved oxidation procedure. The by-product of their interconversion by Swern oxidation is elucidated and a possible mechanism of i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ef28e42ca2fac287ca750bb0c11b8d6
https://doi.org/10.1007/s00706-003-0044-y
https://doi.org/10.1007/s00706-003-0044-y
Publikováno v:
Monatshefte f?r Chemie / Chemical Monthly. 133:1147-1155
The synthesis of two oxidized metabolites of bis-(2-ethylhexyl)-phthalate is described. The target structures were obtained by esterification of the appropriate alcohol carrying a protected hydroxy group with phthalic anhydride, followed by deprotect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38b4cd8f499534df24f9736b0b199688
https://doi.org/10.1007/s007060200084
https://doi.org/10.1007/s007060200084
Publikováno v:
Journal of Fluorine Chemistry. 113:85-91
Three new aromatic polyazomethines have been synthesized by solution polycondensation reactions of terephthalic dialdehyde with fluorine containing aromatic diamines. The polymers were obtained in high yields. The investigation of these polymers by m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70a58fe480bdc5d3f4fa5b27704ccdc2
https://doi.org/10.1016/s0022-1139(01)00498-5
https://doi.org/10.1016/s0022-1139(01)00498-5
Autor:
Gerald Knochenhauer, Peter Karageorgiev, Dietrich Prescher, Burkhard Stiller, Th. Jüngling, Ludwig Brehmer, Reinhard Dietel, Th. Zetzsche
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 355:401-411
The light induced switching of self-assembled monolayers containing azobenzenes is observed in situ by the Kelvin probe method. The switching process is optimized by preparing monolayers from mixed solutions of azobenzene thiols and n-alkylene thiols
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f95941ce03b7b7a8a04f837e52fbcd3
https://doi.org/10.1080/10587250108023673
https://doi.org/10.1080/10587250108023673
Autor:
and B. Schulz, Burkhard Stiller, Peter Karageorgiev, Ludwig Brehmer, Birgit Dietzel, Dietrich Prescher
Publikováno v:
Langmuir. 16:5515-5518
For the first time a light-induced local modification of the surface potential of an azobenzene-containing film in the near field of a scanning force microscope tip has been observed. The modification occurred when the tip was scanned a fixed distanc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::246c90d72387a82b901655583540ae81
https://doi.org/10.1021/la991517v
https://doi.org/10.1021/la991517v
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 633:1676-1678
Well crystallized diquaternary piperazinium salts of perfluorocarboxylic acids can be prepared by thermal rearrangement of a primary product obtained from the appropriate fluorinated acid chloride and N,N-dialkylamino-ethanol. The mechanism of the ri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b9e28f728a5ee2657d41851a8def066
https://doi.org/10.1002/zaac.200700102
https://doi.org/10.1002/zaac.200700102
Publikováno v:
Materials Science and Engineering: C. 5:307-310
We present ellipsometric measurements on photoisomerization processes, induced in Langmuir-Blodgett (LB) films of (co-PM-5AZ), a polymethacrylate copolymer with azobenzene sidegroups. Ellipsometry gives a value of n = 1.557 for the refractive index o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ebc7b84636fb3c7d5006ec3d1e30ef6
https://doi.org/10.1016/s0928-4931(97)00064-7
https://doi.org/10.1016/s0928-4931(97)00064-7
Publikováno v:
Journal of Fluorine Chemistry. 85:155-161
The synthesis and characterization of 4-(1H,1H-perfluoroalkoxy)-4′-(6-methacryloyloxy-hexyloxy)-azobenzenes with different lengths of the fluorinated tail group (C2-C8) and their liquid crystalline intermediates, starting from 1H,1H-perfluoroalkyl-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f91b3be2876dd0802cf83af7dcdb275
https://doi.org/10.1016/s0022-1139(97)00076-6
https://doi.org/10.1016/s0022-1139(97)00076-6
Publikováno v:
Journal of Fluorine Chemistry. 82:55-71
Applying ab initio and semiempirical quantum chemical methods, the proton affinities ( PA ) for some simple polytetrafluoroethylene ( PTFE ) models, and also for propane as a polyethylene ( PE ) model, have been estimated. Using AM1, a systematic (mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a638b612491b0e8e3e8386732fa1cccc
https://doi.org/10.1016/s0022-1139(99)60355-4
https://doi.org/10.1016/s0022-1139(99)60355-4