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101 0 _aeng
102 _aCH
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aPhotochemistry of the а-Al[2]O[3]-PETN Interface
_fR. V. Tsyshevsky [et al.]
203 _aText
_celectronic
320 _a[References: 58 tit.]
330 _aOptical absorption measurements are combined with electronic structure calculations to explore photochemistry of an a-Al2O3-PETN interface formed by a nitroester (pentaerythritol tetranitrate, PETN, C5H5N5O12) and a wide band gap aluminum oxide (a-Al2O3) substrate. The first principles modeling is used to deconstruct and interpret the a-Al2O3-PETN absorption spectrum that has distinct peaks attributed to surface F0-centers and surface-PETN transitions. We predict the low energy a-Al2O3 F0-center-PETN transition, producing the excited triplet state, and a-Al2O3 F0-center-PETN charge transfer, generating the PETN anion radical. This implies that irradiation by commonly used lasers can easily initiate photodecomposition of both excited and charged PETN at the interface. The feasible mechanism of the photodecomposition is proposed.
461 _tMolecules
463 _tVol. 21, iss. 3
_v[13 p.]
_d2016
610 1 _aтруды учёных ТПУ
610 1 _aэлектронный ресурс
610 1 _aфотохимия
610 1 _aоптическое поглощение
610 1 _aмоделирование
701 1 _aTsyshevsky
_bR. V.
_gRoman Vitaljevich
701 1 _aZverev
_bA. S.
_cChemist
_cAssistant of Yurga Technological Institute (branch) of Tomsk Polytechnic University
_f1987-
_gAnton Sergeevich
_2stltpush
_3(RuTPU)RU\TPU\pers\36704
701 1 _aMitrofanov
_bA. Yu.
_cChemist
_cAssociate Professor of Yurga Technological Institute (branch) of Tomsk Polytechnic University, Candidate of physical and mathematical sciences
_f1976-
_gAnatoliy Yuryevich
_2stltpush
_3(RuTPU)RU\TPU\pers\36705
701 1 _aRashkeev
_bS. N.
_gSergey Nikolaevich
701 1 _aKuklya
_bM. M.
_gMayya Mikhaylovna
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bЮргинский технологический институт (филиал) (ЮТИ)
_bКафедра естественного научного образования (ЕНО)
_h7134
_2stltpush
_3(RuTPU)RU\TPU\col\18894
801 2 _aRU
_b63413507
_c20160523
_gRCR
856 4 0 _uhttp://dx.doi.org/10.3390/molecules21030289
942 _cCF