Research output: Contribution to journal › Article › peer-review
The gas phase FTIR studies of chloroform + B and halothane + B (B = TMA, FCD3) mixtures. / Rutkowski, K.S.; Melikova, S.M.; Asfin, R.E.; Czarnik-Matusewicz, B.; Rospenk, M.
In: Journal of Molecular Structure, Vol. 1072, No. 1, 2014, p. 32-37.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - The gas phase FTIR studies of chloroform + B and halothane + B (B = TMA, FCD3) mixtures.
AU - Rutkowski, K.S.
AU - Melikova, S.M.
AU - Asfin, R.E.
AU - Czarnik-Matusewicz, B.
AU - Rospenk, M.
PY - 2014
Y1 - 2014
N2 - An infrared and ab initio (MP2/6-311++G(2d,2p)) study of complexes of chloroform (Cl3CH(D)) and halothane (CHClBrCF3) with weak - methyl fluoride (FCD3) and strong - trimethylamine (N(CH(D) 3)3 TMA) proton acceptors in the gas phase near the room temperature is presented. The so called blue shifting hydrogen bond has been identified in the former case and the formation of conventional H-bond with the red frequency shift of CH stretching vibration of the proton donors was observed in the latter case. An attempt of temperature spectroscopic measurements has been made for the systems studied to estimate the formation energy. In the case of Cl3CD...N(CH3)3 complex this value equals -23(2) kJ/mol. The results obtained in ab inito calculations generally agree with those obtained in IR spectroscopic measurements, however they overestimate the frequency shift caused by the complex formation, especially in the case of the red-shifting H-bonds. Possible origin of such overestimation is discussed shortly. © 2013 Elsevie
AB - An infrared and ab initio (MP2/6-311++G(2d,2p)) study of complexes of chloroform (Cl3CH(D)) and halothane (CHClBrCF3) with weak - methyl fluoride (FCD3) and strong - trimethylamine (N(CH(D) 3)3 TMA) proton acceptors in the gas phase near the room temperature is presented. The so called blue shifting hydrogen bond has been identified in the former case and the formation of conventional H-bond with the red frequency shift of CH stretching vibration of the proton donors was observed in the latter case. An attempt of temperature spectroscopic measurements has been made for the systems studied to estimate the formation energy. In the case of Cl3CD...N(CH3)3 complex this value equals -23(2) kJ/mol. The results obtained in ab inito calculations generally agree with those obtained in IR spectroscopic measurements, however they overestimate the frequency shift caused by the complex formation, especially in the case of the red-shifting H-bonds. Possible origin of such overestimation is discussed shortly. © 2013 Elsevie
U2 - 10.1016/j.molstruc.2013.12.014
DO - 10.1016/j.molstruc.2013.12.014
M3 - Article
VL - 1072
SP - 32
EP - 37
JO - Journal of Molecular Structure
JF - Journal of Molecular Structure
SN - 0022-2860
IS - 1
ER -
ID: 7004879