Zobrazeno 1 - 10
of 27
pro vyhledávání: '"M. Knidiri"'
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy [1994-...]
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy [1994-..], Elsevier, 2005, 61, pp.419. ⟨10.1016/j.saa.2004.03.042⟩
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy [1994-..], 2005, 61, pp.419. ⟨10.1016/j.saa.2004.03.042⟩
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy [1994-..], Elsevier, 2005, 61, pp.419. ⟨10.1016/j.saa.2004.03.042⟩
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy [1994-..], 2005, 61, pp.419. ⟨10.1016/j.saa.2004.03.042⟩
The monoclinic phosphates with K3Ln(PO4)2 (Ln=rare earth) formula were synthesized. Their infrared and Raman spectra have been reported and analysed. The results of a force field calculation for K3Nd(PO4)2 are presented.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42a9a68acbd2cc8bd251e9f9f1f041de
https://doi.org/10.1016/j.saa.2004.03.042
https://doi.org/10.1016/j.saa.2004.03.042
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 58:2951-2960
Resume Ce travail porte sur l’etude experimentale et theorique des spectres de vibration des phosphates SrM 2 (PO 4 ) 2 avec M=Ni, Co synthetises par nous meme. Une attribution des raies et des bandes de vibration a ete proposee et confirmee par un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9755d001f955a2d0adb864ea05836bf4
https://doi.org/10.1016/s1386-1425(02)00039-2
https://doi.org/10.1016/s1386-1425(02)00039-2
Publikováno v:
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 61(3)
The monoclinic phosphates with K3Ln(PO4)2 (Ln=rare earth) formula were synthesized. Their infrared and Raman spectra have been reported and analysed. The results of a force field calculation for K3Nd(PO4)2 are presented.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::d7f52b548a708d459157c47d9a2f38c1
https://pubmed.ncbi.nlm.nih.gov/15582809
https://pubmed.ncbi.nlm.nih.gov/15582809
Autor:
Nguyen Quy Dao, M. Knidiri
Publikováno v:
Spectrochimica Acta Part A: Molecular Spectroscopy. 32:1113-1118
Normal coordinate analysis of the UO 2 F 5 3− ion using the Wilson-Decius GF matrix method was carried out. Good agreement with the observed spectra was obtained. Discussions are given on the force constants obtained for UO and UF bonds and o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0de290135423de1ce8abb43400813dc
https://doi.org/10.1016/0584-8539(76)80296-6
https://doi.org/10.1016/0584-8539(76)80296-6
Autor:
M. Knidiri, Nguyen Quy Dao
Publikováno v:
Spectrochimica Acta Part A: Molecular Spectroscopy. 31:1829-1838
Infrared and Raman spectra of the complex K5(UO2)2F9 were recorded in the region 4000-80 cm−1. Factor group analysis was used to classify the internal vibrations of the binuclear ion (UO2)2F95−. Infrared and Raman spectra were assigned and splitt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d440ae879646bd2fa6fb4bcc48f19766
https://doi.org/10.1016/0584-8539(75)80238-8
https://doi.org/10.1016/0584-8539(75)80238-8
Publikováno v:
Spectrochimica Acta Part A: Molecular Spectroscopy. 31:1819-1827
Unpolarized Raman spectra of the compounds M 3 UO 2 F 5 ( M = K, Rb, Cs, NH 4 ) were recorded in the region 1000-100 cm −1 at room and liquid nitrogen temperatures. Polarized Raman spectra of single crystals K 3 UO 2 F 5 , Rb 3 UO 3 F 5 were measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f2d55ed08aa99a3d5aab67316b7f3ac
https://doi.org/10.1016/0584-8539(75)80237-6
https://doi.org/10.1016/0584-8539(75)80237-6
Autor:
Nguyen Quy Dao, M. Knidiri
Publikováno v:
Spectrochimica Acta Part A: Molecular Spectroscopy. 32:481-486
Resume Infrared spectra of the compound M3UO2F5 (M = K, Rb, Cs, NH4) were recorded in the region 4000-140 cm−1. Factor group analysis was applied to the interpretation of the spectra. Site and correlation splitting of the internal modes of the UO2F
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b6169b4f86768bd3a3254002d9f7b1a
https://doi.org/10.1016/0584-8539(76)80107-9
https://doi.org/10.1016/0584-8539(76)80107-9
Publikováno v:
Phase Transitions. 13:33-37
This study by Raman spectrometry of double orthophosphates of lutetium and potassium consists of a systematic analysis of double orthophosphates of the potassium and lanthanide family. In the 10-300 K temperature range three solid-solid phase transit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2009d07c5999c222a1f5a1bb5b0c8a3b
https://doi.org/10.1080/01411598808206811
https://doi.org/10.1080/01411598808206811
Publikováno v:
Spectroscopy Letters. 7:277-283
Polarized Raman spectra of Cs3UO2F5 in which the UO2F5 3− ion is in its statistical position have made it possible to assign definitely the Raman fundamental vibration modes as follows : v1(A′1) = 784, v2(A′1) = 423, v8(E′2) = 325, v8(E′2)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::806d2a87e902765950e290a2d59aa2a3
https://doi.org/10.1080/00387017408067248
https://doi.org/10.1080/00387017408067248
Publikováno v:
Spectrochimica Acta Part A: Molecular Spectroscopy. 34:185-193
Infrared (4000-100 cm −1 ) and Raman (1000-100 cm −1 ) spectra of the complexes M 4 (UO 2 ) 2 F 8 -2H 2 O (M = Rb, Cs) were reported. Factor group analysis was used to classify the normal vibration modes of the binuclear ion (UO 2 ) 2 F 4− 8 an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::696b449f8714257055528152fb4e3684
https://doi.org/10.1016/0584-8539(78)80115-9
https://doi.org/10.1016/0584-8539(78)80115-9