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Publikováno v:
ACS Omega, Vol 6, Iss 8, Pp 5255-5265 (2021)
ACS Omega
ACS Omega
Ultraviolet photoelectron spectroscopy (UPS) investigations of several gas-phase ionic liquid (IL) ion pairs have been conducted. [EMIM][OTF], [PYR14][OTF], [EMIM][DCA], [PYR14][DCA], [PYR14][TCM], [PYR14][FSI], [PYR14][PF6], [S222][TFSI], [P4441][TF
Autor:
M. Berholts, Vambola Kisand, Jaanus Kruusma, I. Kuusik, Arvo Tõnisoo, Enn Lust, Ergo Nõmmiste
Publikováno v:
RSC Advances. 9:33140-33146
The ultraviolet photoelectron spectrum of the [EMIM][B(CN)4] ionic liquid was recorded and analyzed. Together with different ab initio calculation methods, detailed insight into the electronic structure of this simple room temperature ionic liquid is
Publikováno v:
npj Computational Materials, Vol 6, Iss 1, Pp 1-7 (2020)
Ionic liquids play an important role in many technological applications and a detailed understanding of their frontier molecular orbitals is required to optimize interfacial barriers, reactivity and stability with respect to electron injection and re
Autor:
Arvo Tõnisoo, Arvo Kikas, J.M. Kahk, Antti Kivimäki, I. Kuusik, Mati Kook, Vambola Kisand, Liis Reisberg, Rainer Pärna, Tanel Käämbre
Publikováno v:
International Journal of Mass Spectrometry. 471:116732
The ionic liquids (ILs) 1-Ethyl-2,3-dimethylimidazolium bis(trifluoromethylsulfonyl)imide [EMMIM][TFSI], 1-Ethyl-3-methylimidazolium trifluoromethanesulfonate [EMIM][OTf] and 1-Ethyl-3-methylimidazolium dicyanamide [EMIM][DCA] were evaporated by effu
Autor:
M. Berholts, Jaanus Kruusma, Arvo Tõnisoo, Vambola Kisand, Ergo Nõmmiste, Enn Lust, I. Kuusik
Publikováno v:
RSC Advances. 8:30298-30304
The ultraviolet photoelectron spectrum (UPS) of the [EMIM][BF4] ionic liquid was recorded and analyzed. Together with the gas-phase UPS spectrum of the [EMIM][BF4] vapor and ab initio calculation methods, detailed insight into the electronic structur
Publikováno v:
RSC advances. 9(57)
The ultraviolet photoelectron spectrum of the [EMIM][B(CN)
Autor:
Marta Tarkanovskaja, Enn Lust, I. Kuusik, Arvo Tõnisoo, Vambola Kisand, Jaanus Kruusma, Ergo Nõmmiste
Publikováno v:
Journal of Molecular Liquids. 223:939-942
Experimental ultraviolet photoelectron spectra of [EMIM][BF 4 ] molecules were recorded and analyzed. The low binding energy tail of the HOMO peak in the UPS spectrum is about 7.5 eV, in agreement with previous estimations of the liquid phase HOMO-LU
Publikováno v:
RSC advances. 8(53)
The ultraviolet photoelectron spectrum (UPS) of the [EMIM][BF
Autor:
I. Kuusik, Tanel Käämbre, Andris Šutka, Santa Lagzdina, Rainer Pärna, Vambola Kisand, Janis Kleperis, Mikhail Maiorov, Dmitrijs Jakovlevs, Arvo Kikas
Publikováno v:
Materials Chemistry and Physics. :473-479
Magnetite nanoparticles were precipitated from a pure aqueous ferrous salt solution in an air atmosphere. The influence of the solution molarity, the rate of precipitator agent addition, stirring time and annealing temperature was studied. The morpho