Research output: Contribution to journal › Article › peer-review
Infrared spectra and relative stability of the F3CH/NH 3 H-bonded complex in liquefied Xe. / Rutkowski, K. S.; Herrebout, W. A.; Melikova, S. M.; Rodziewicz, P.; Van Der Veken, B. J.; Koll, A.
In: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, Vol. 61, No. 7, 01.05.2005, p. 1595-1602.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Infrared spectra and relative stability of the F3CH/NH 3 H-bonded complex in liquefied Xe
AU - Rutkowski, K. S.
AU - Herrebout, W. A.
AU - Melikova, S. M.
AU - Rodziewicz, P.
AU - Van Der Veken, B. J.
AU - Koll, A.
PY - 2005/5/1
Y1 - 2005/5/1
N2 - FTIR spectra of mixtures of fluoroform (F3CH) and ammonia (NH3), have been studied in liquid xenon between 5400 and 500 cm -1. Spectroscopic evidence for the formation of a hydrogen bonded complex has been found and the complexation enthalpy ΔLXeH° in the temperature interval between 173 and 215 K, was determined to be 14.4 (7) kJ mol-1. The parallel fundamentals ν1 and ν2 of ammonia reveal a strong narrowing effect upon complex formation, whereas the perpendicular fundamentals ν3 and ν4 show a modest decrease of their width. CP corrected ab initio calculations at the MP2(FULL)/6-311++G(3df,2pd) level predict a linear geometry for the complex, characterized by a small red shift of the CH stretch frequency of fluoroform. The ab initio interaction energy was found to be compatible with the isolated molecule complexation energy extrapolated from the experimental ΔLXeH°.
AB - FTIR spectra of mixtures of fluoroform (F3CH) and ammonia (NH3), have been studied in liquid xenon between 5400 and 500 cm -1. Spectroscopic evidence for the formation of a hydrogen bonded complex has been found and the complexation enthalpy ΔLXeH° in the temperature interval between 173 and 215 K, was determined to be 14.4 (7) kJ mol-1. The parallel fundamentals ν1 and ν2 of ammonia reveal a strong narrowing effect upon complex formation, whereas the perpendicular fundamentals ν3 and ν4 show a modest decrease of their width. CP corrected ab initio calculations at the MP2(FULL)/6-311++G(3df,2pd) level predict a linear geometry for the complex, characterized by a small red shift of the CH stretch frequency of fluoroform. The ab initio interaction energy was found to be compatible with the isolated molecule complexation energy extrapolated from the experimental ΔLXeH°.
KW - Ammonia
KW - CH⋯B interactions
KW - Cryosolutions
KW - Fluoroform
KW - Hydrogen bond
KW - Liquid xenon
KW - Relative stability
UR - http://www.scopus.com/inward/record.url?scp=16244367408&partnerID=8YFLogxK
U2 - 10.1016/j.saa.2004.11.063
DO - 10.1016/j.saa.2004.11.063
M3 - Article
C2 - 15820893
AN - SCOPUS:16244367408
VL - 61
SP - 1595
EP - 1602
JO - SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
JF - SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
SN - 1386-1425
IS - 7
ER -
ID: 36462630