Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Nisreen H. Karam"'
Autor:
Athraa J. Ali, Nisreen H. Karam
Publikováno v:
Ibn Al-Haitham Journal for Pure and Applied Sciences, Vol 36, Iss 2 (2023)
The characterization and design of this study of new liquid crystals with a V shape compounds containing thiazolidine-2,4-dione and 1,3-phenylene as a core unite with mesophase properties were reported. Preparation and characterization of chloroaceti
Externí odkaz:
https://doaj.org/article/99b98c0b8cc74366877c4feaea002c81
Autor:
Nisreen H. Karam, Alaa K. Shanshal
Publikováno v:
Ibn Al-Haitham Journal for Pure and Applied Sciences, Vol 30, Iss 3 (2017)
We described herein the synthesized and characterized of new bent and liner core compounds containing thiazolidin-4-one ring[XI-XIII] and [XIV-XVI] respectively. These compounds synthesized by sequence reactions starting from reaction resorcinol or h
Externí odkaz:
https://doaj.org/article/780d35a20725458bae2366caaecae7f2
Publikováno v:
Ibn Al-Haitham Journal for Pure and Applied Sciences, Vol 26, Iss 3 (2017)
Two series of Schiff Bases [VI]n and thiazolidin-4-one derivatives[VII]n were synthesized by many steps starting from cyclization of 4- hydroxyacetophenon with thiourea in iodine to yield 1,3-thiazole compound which was reacted with pentoxy bromide i
Externí odkaz:
https://doaj.org/article/c8b398d9195345dda870354f12e207c6
Publikováno v:
Ibn Al-Haitham Journal for Pure and Applied Sciences, Vol 29, Iss 1 (2017)
Two series of bent core mesogen containing 1,2,4-traizole ring [X]a-e and [XI]a-e were synthesized by many steps starting from esterification of isophthalic acid with methanol to yield diester compound [I] which was converted to their acid hydrazide
Externí odkaz:
https://doaj.org/article/d8dd975e8fc5457697eff1b35a2ae8e1
Publikováno v:
Phase Transitions. 95:634-641
A new four series of 2,2′-([1,1′- phenyl or biphenyl]-4,4′-diylbis(azanediyl)) bis(N′-((E)-1-(4-alkoxyphenyl) ethylidene) acetohydrazide) [V-XI]a,b and 1,1′-(2,2′-([1,1′- phenyl or biphenyl]-4,4′-diyl bis(azanediyl)) bis- (acetyl)) bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::972427acf39be80f52368f722e276a99
https://doi.org/10.1080/01411594.2022.2096024
https://doi.org/10.1080/01411594.2022.2096024
Autor:
Maha A. Jabar, Nisreen H. Karam
Publikováno v:
Bionatura. 7:1-4
A calamitic symmetric liquid crystalline consisting of an azo group containing 5H-Thiazolo[3,4-b][1,3,4]thiadiazole moiety compound[III] was synthesized via sequence reactions starting from reaction terephthaldehyde with mercaptoacetic acid and thios
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48d65e5c87a98e7a1c35e91f6d0144b6
https://doi.org/10.21931/rb/2022.07.02.17
https://doi.org/10.21931/rb/2022.07.02.17
Autor:
Maha A. Jabar, Nisreen H. Karam
Publikováno v:
THE SECOND INTERNATIONAL SCIENTIFIC CONFERENCE (SISC2021): College of Science, Al-Nahrain University.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e9a3688afe5478e05f3fa9374e185cd
https://doi.org/10.1063/5.0120896
https://doi.org/10.1063/5.0120896
Publikováno v:
Molecular Crystals and Liquid Crystals. 731:66-79
The article presents the synthesis and liquid crystalline properties of some of new bent and linear core compounds containing a 1,3,4-oxadiazole, piperazine and thiazolidin-4-one rings as a central...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96416226f8ad27228903a1ded8351577
https://doi.org/10.1080/15421406.2021.1966871
https://doi.org/10.1080/15421406.2021.1966871
Publikováno v:
Molecular Crystals and Liquid Crystals. 710:1-12
Twelve compounds containing a sulphur- or oxygen-based heterocyclic core, 1,3- oxazole or 1,3-thiazole ring with hydroxy, methoxy and methyl terminal substituent, were synthesized and characterized...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::274f6e975ccf6a62ae3029b68ed1de16
https://doi.org/10.1080/15421406.2020.1824152
https://doi.org/10.1080/15421406.2020.1824152
Publikováno v:
Molecular Crystals and Liquid Crystals. 675:39-48
The synthesis, characterization and mesomorphic properties of two new series of triazine-core based liquid crystals have been investigated. The amino triazine derivatives were characterized by elem...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7bb76c749a303f08bf57a84a78f79bc
https://doi.org/10.1080/15421406.2019.1624032
https://doi.org/10.1080/15421406.2019.1624032