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The infrared study of fluoroform + methyl fluoride mixtures in argon and nitrogen matrices. Evidence of nonlinear blue-shifting complex formation. / Asfin, R.E.; Melikova, S.M.; Rutkowski, K.S.
в: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, Том 203, 05.10.2018, стр. 185-194.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - The infrared study of fluoroform + methyl fluoride mixtures in argon and nitrogen matrices. Evidence of nonlinear blue-shifting complex formation
AU - Asfin, R.E.
AU - Melikova, S.M.
AU - Rutkowski, K.S.
PY - 2018/10/5
Y1 - 2018/10/5
N2 - The FTIR spectra of fluoroform + methyl fluoride mixtures trapped in argon and nitrogen matrices are studied at T~10–30 K. Spectroscopic changes observed in the region of the CH stretching mode of fluoroform are typical for weak blue shifting H – bonds of C–H⋯F type. The degeneracy lifting effect found on E – type bands of fluoroform interacted with methyl fluoride suggests the complex formation of a nonlinear form. The experimental results are confirmed by ab initio calculations of fluoroform + methyl fluoride based on the second order Møller-Plesset theory of perturbations utilizing advanced basis set. Nonlinear complexes are stabilized by the basic C–H⋯F interaction and additionally by van der Waals-type C–D⋯F–C contacts between deuterated methyl fluoride and fluoroform.
AB - The FTIR spectra of fluoroform + methyl fluoride mixtures trapped in argon and nitrogen matrices are studied at T~10–30 K. Spectroscopic changes observed in the region of the CH stretching mode of fluoroform are typical for weak blue shifting H – bonds of C–H⋯F type. The degeneracy lifting effect found on E – type bands of fluoroform interacted with methyl fluoride suggests the complex formation of a nonlinear form. The experimental results are confirmed by ab initio calculations of fluoroform + methyl fluoride based on the second order Møller-Plesset theory of perturbations utilizing advanced basis set. Nonlinear complexes are stabilized by the basic C–H⋯F interaction and additionally by van der Waals-type C–D⋯F–C contacts between deuterated methyl fluoride and fluoroform.
KW - AIM
KW - Ab initio calculations
KW - Ar and N matrices
KW - Blue-shifting H - bond
KW - FTIR spectra
KW - Fluoroform
KW - Methyl fluoride
KW - Self-associates
KW - HYDROGEN-BONDED COMPLEXES
KW - AMMONIA
KW - ACETYLENE
KW - Blue-shifting H
KW - AB-INITIO
KW - bond
KW - ORIGIN
KW - F3CH-CENTER-DOT-CENTER-DOT-CENTER-DOT-FCD3
KW - IMPROPER
KW - GAS-PHASE
KW - Ar and N-2 matrices
KW - VIBRATIONAL SPECTROSCOPY
KW - LOW-TEMPERATURE MATRICES
UR - http://www.scopus.com/inward/record.url?scp=85048497394&partnerID=8YFLogxK
U2 - 10.1016/j.saa.2018.05.105
DO - 10.1016/j.saa.2018.05.105
M3 - Article
VL - 203
SP - 185
EP - 194
JO - SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
JF - SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
SN - 1386-1425
ER -
ID: 28262610