Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Valentina Closca"'
Autor:
Dana Ortansa Dorohoi, Dan Gheorghe Dimitriu, Ana Cezarina Morosanu, Nicoleta Puica Melniciuc, Ion Hurjui, Mihaela Miron, Gabriel Grigore Mariciuc, Valentina Closca, Corina Cheptea
Publikováno v:
Symmetry, Vol 13, Iss 9, p 1656 (2021)
Four carbanion monosubstituted p-aryl-1,2,4-triazol-1-ium methylids are subjected to a comparative study between their spectral and quantum-mechanical parameters in order to obtain more information about their structural features in hydroxyl solvents
Externí odkaz:
https://doaj.org/article/faea21de8d544c66a79518b14ff817b7
Autor:
Nicoleta Melniciuc Puica, Dan Gheorghe Dimitriu, Valentina Closca, Leonas Dumitrascu, Dana-Ortansa Dorohoi
Publikováno v:
Molecular Crystals and Liquid Crystals. 748:112-121
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b77cd5733062f001d6c196900a36eec3
https://doi.org/10.1080/15421406.2022.2067666
https://doi.org/10.1080/15421406.2022.2067666
Publikováno v:
In Journal of Molecular Liquids December 2014 200 Part B:431-438
Autor:
Mihai Postolache, Dan Gheorghe Dimitriu, Cristina Delia Nechifor, Simona Condurache Bota, Valentina Closca, Dana Ortansa Dorohoi
Publikováno v:
Polymers; Volume 14; Issue 5; Pages: 1063
A simple method for determining the linear birefringence of the thin layers based on the determination of the orientation of the polarization ellipse of totally polarized light is proposed and it is applied to PVA thin foils. Theoretical notions and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c90962c51a310b59e082ebb18dcb7b6
Autor:
Valentina Closca, Valeriu Sunel, Cristina-Maria Pavel, Marcel Popa, Corina Popovici, Dan Gheorghe Dimitriu, Dana Ortansa Dorohoi, Diana David, Corina Cheptea
Publikováno v:
International Journal of Molecular Sciences
Volume 22
Issue 22
International Journal of Molecular Sciences, Vol 22, Iss 12139, p 12139 (2021)
Volume 22
Issue 22
International Journal of Molecular Sciences, Vol 22, Iss 12139, p 12139 (2021)
Original results are presented in the field of research that addresses the extension of the reaction of residue of acyl-thiosemicarbazide fixation on the structure of 5-nitrobenzimidazole by a sulphonic group. The aim of the study is the increase of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b3e8c560850c68d1ff991ac01bb8b9d
Publikováno v:
Revista de Chimie. 70:956-960
Some electro-optical characteristics of four carbanion monosubstituted triazolium ylids - precursors in obtaining new heterocycle derivatives with pharmaceutical and industrial applications - were evaluated by spectral and quantum-mechanics studies.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8ea3761ce7ec327c7313742940cfd04
https://doi.org/10.37358/rc.19.3.7039
https://doi.org/10.37358/rc.19.3.7039
Autor:
Dan Gheorghe Dimitriu, Valentina Closca, I. Hurjui, Gabriel Grigore Mariciuc, Dana Ortansa Dorohoi, Nicoleta Puica Melniciuc, Corina Cheptea, Ana Cezarina Morosanu, Mihaela Miron
Publikováno v:
Symmetry
Volume 13
Issue 9
Symmetry, Vol 13, Iss 1656, p 1656 (2021)
Volume 13
Issue 9
Symmetry, Vol 13, Iss 1656, p 1656 (2021)
Four carbanion monosubstituted p-aryl-1,2,4-triazol-1-ium methylids are subjected to a comparative study between their spectral and quantum-mechanical parameters in order to obtain more information about their structural features in hydroxyl solvents
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::656d7a015292db896a6a0b16a030ca93
https://doi.org/10.3390/sym13091656
https://doi.org/10.3390/sym13091656
Autor:
Cristina-Delia Nechifor, Dana Ortansa Dorohoi, Valentina Closca, Andreea Irina Barzic, Iuliana Stoica
Publikováno v:
Polymer Bulletin. 72:549-563
Drug delivery systems based on different glucose and hydroxypropyl cellulose (HPC) ratios were prepared and characterized to check their suitability as controlled drug delivery carriers. The surface polarity and topography were analyzed and correlate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f354f65746499995454ffb5e72329302
https://doi.org/10.1007/s00289-014-1291-2
https://doi.org/10.1007/s00289-014-1291-2
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 122:670-675
Two cycloimmonium ylids with pyridinium and iso-quinolinium as heterocycle and having common carbanion were studied from the point of view of the solvent influence on electronic absorption spectra in binary and ternary solutions. The supplies of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46d4f548535a069dd00f5e2ef409402b
https://doi.org/10.1016/j.saa.2013.11.026
https://doi.org/10.1016/j.saa.2013.11.026