\\ Species Tag:        &   46004 & Name:&  C2H5OH         
\\ Version:            &       4 & & Ethyl alcohol,
\\ Date:       &  April 2008     & & {\it trans, \ gauche} states
\\ Contributor:&  J. C. Pearson  & & 
\\             &                 & & 
\\ Lines Listed:       &   52180 & Q(300.0)=&    45583.6606     
\\ Freq. (GHz) $<$     &    2000 & Q(225.0)=&    28437.8924   
\\ Max. J:             &      80 & Q(150.0)=&    14312.2584   
\\ LOGSTR0=            &   -10.0 & Q(75.00)=&     4106.4006    
\\ LOGSTR1=            &    -8.0 & Q(37.50)=&     1072.4178     
\\ Isotope Corr.:      &     0.0 & Q(18.75)=&      290.9463    
\\ Egy. (cm$^{-1}$) $>$&     0.0 & Q(9.375)=&       95.5970    
\\ $\mu_a$ = & 0.046             & A=& 34891.7707
\\ $\mu_b$ = & 1.462             & B=&  9350.6776
\\ $\mu_c$ = & 0.000             & C=&  8135.2352
\headend 

{\bf Trans State:}
The experimental measurements were analyzed using the methods described in W. H.
Kirchhoff, 1972, J. Mol. Spect. {\bf 41}, 333.  The measurements were taken 
from:
J. Michielson-Effinger, 1969, J. Phys. (Paris) {\bf 30}, 333,
Y. Sasada, M. Takano, and T. Satoh, 1971, J. Mol. Spect. {\bf 38}, 33,
H. Takano, Y. Sasada, and T. Satoh, 1968, J. Mol. Spect. {\bf 26}, 157,
F. J. Lovas, 1982, J. Phys. Chem. Ref. Data {\bf 11}, 251, and
J. C. Pearson, K. V. L. N. Sastry, M. Winnewisser, E. Herbst, and F. De Lucia, 1995,
J. Phys.  Chem. Ref. Data {\bf 24}, 1-32.
J. C. Pearson, C.S. Brauer \& B.J. Drouin, J. Mol. Spectrosc., in press, 2008
The dipole moment was reported by Takano {\it et al.}, above.  The {\it trans}
state transitions are designated as v = 2.  The dipoles and rotation constants 
listed are for the {\it trans} state.

{\bf Gauche States:}
The analysis used here is based on a modified Fixed Frame Axis Method (FFAM) which is
described in C. R. Quade and Chun C. Lin, 1963, J. Chem. Phys. {\bf 38}, 
540-550 with the addition of a periodic Ecos(pK) with equal and opposite signs for the
two gauche states.
Measurements were taken from:
E. A. Cohen, 1979, unpublished,
R. K. Kakar and C. R. Quade, 1980, J. Chem. Phys. {\bf 78}, 4300-4307, and
J. C. Pearson, K. V. L. N. Sastry, E. Herbst and F. C. De Lucia, 1995,
submitted to J. Mol. Spect.
J. C. Pearson, K. V. L. N. Sastry, E. Herbst and F. C. De Lucia, 1996, 
J. C. Pearson, C.S. Brauer \& B.J. Drouin, J. Mol. Spectrosc., in press, 2008
The dipole moment was reported by Kakar and Quade, above. The dipoles are 
$\mu_a$ = 1.264, $\mu_b$ = 0.104, and $\mu_c$ = 1.101.  
The vibrational quantum number v = 0 is used to designate the lower 
{\it gauche+} state and v = 1 to designate the {\it gauche-} state.

{\bf Both States:}
The analysis is described in Pearson et al. 2008. It includes both substates as well as several thousand transitions between the two.  Intensities were calculated from the fixed dipole moments with no knowledge of the torsional overlaps.  It is known that the intensities of A-type Delta K not zero transitions, X-type, and preturbed transitions including almost all trans to gauche can have differences in intensity from the calculation by an order of magnitude.  Fortunately the strongest lines are generally in excellent agreement with the predicted intensites.   The existing data effectively ends at K=26 and any higher K will be wrong by significantly more than the calculated value.  The J range extends to 53 for K>10 and increases to 71 for K<4.  Q branches to 76 were in the analysis at K=0 and 1.