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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: TPSSh/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/3-21G
 hartrees
Energy at 0K-154.186334
Energy at 298.15K-154.192979
HF Energy-154.186334
Nuclear repulsion energy80.696106
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at TPSSh/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3451 3343 2.19 145.20 0.32 0.48
2 A' 3128 3031 28.59 57.88 0.75 0.86
3 A' 3057 2962 14.19 105.84 0.01 0.03
4 A' 2978 2886 62.89 105.72 0.15 0.25
5 A' 1593 1543 1.48 4.25 0.65 0.79
6 A' 1573 1524 6.25 34.27 0.75 0.86
7 A' 1463 1417 10.97 4.85 0.69 0.82
8 A' 1454 1408 4.50 1.71 0.59 0.74
9 A' 1287 1247 65.33 10.98 0.75 0.86
10 A' 1107 1072 1.74 6.69 0.44 0.61
11 A' 994 963 55.20 2.64 0.23 0.37
12 A' 890 862 11.54 7.15 0.34 0.51
13 A' 387 375 14.22 0.30 0.74 0.85
14 A" 3135 3038 32.60 43.93 0.75 0.86
15 A" 3003 2910 79.85 93.02 0.75 0.86
16 A" 1552 1503 5.45 21.46 0.75 0.86
17 A" 1322 1280 1.95 15.18 0.75 0.86
18 A" 1172 1136 2.80 8.77 0.75 0.86
19 A" 853 827 0.25 0.05 0.75 0.86
20 A" 309 300 121.71 9.12 0.75 0.86
21 A" 236 229 19.38 0.90 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17472.0 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 16926.9 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at TPSSh/3-21G
ABC
1.09998 0.31166 0.26748

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.181 -0.386 0.000
C2 0.000 0.588 0.000
O3 -1.197 -0.266 0.000
H4 -1.990 0.341 0.000
H5 2.134 0.156 0.000
H6 1.125 -1.023 0.889
H7 1.125 -1.023 -0.889
H8 0.046 1.233 0.892
H9 0.046 1.233 -0.892

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.53102.38123.25391.09621.09511.09512.16952.1695
C21.53101.46972.00562.17702.15652.15651.10211.1021
O32.38121.46970.99853.35732.59882.59882.14202.1420
H43.25392.00560.99854.12833.51483.51482.39612.3961
H51.09622.17703.35734.12831.78881.78882.51262.5126
H61.09512.15652.59883.51481.78881.77772.50113.0703
H71.09512.15652.59883.51481.78881.77773.07032.5011
H82.16951.10212.14202.39612.51262.50113.07031.7838
H92.16951.10212.14202.39612.51263.07032.50111.7838

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 105.018 C1 C2 H8 109.887
C1 C2 H9 109.887 C2 C1 H5 110.838
C2 C1 H6 109.282 C2 C1 H7 109.282
C2 O3 H4 107.143 O3 C2 H8 111.991
O3 C2 H9 111.991 H5 C1 H6 109.441
H5 C1 H7 109.441 H6 C1 H7 108.518
H8 C2 H9 108.044
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.596      
2 C -0.185      
3 O -0.550      
4 H 0.335      
5 H 0.192      
6 H 0.218      
7 H 0.218      
8 H 0.184      
9 H 0.184      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.068 1.691 0.000 1.692
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.332 -0.126 0.000
y -0.126 3.627 0.000
z 0.000 0.000 3.224


<r2> (average value of r2) Å2
<r2> 54.682
(<r2>)1/2 7.395