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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: QCISD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/cc-pVTZ
 hartrees
Energy at 0K-154.774076
Energy at 298.15K-154.780761
HF Energy-154.142800
Nuclear repulsion energy81.993586
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 QCISD/cc-pVTZ
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' 3894 3721 27.57      
2 A' 3137 2998 27.78      
3 A' 3061 2925 14.60      
4 A' 3019 2885 60.92      
5 A' 1553 1484 1.36      
6 A' 1522 1454 2.32      
7 A' 1485 1419 10.71      
8 A' 1419 1356 1.74      
9 A' 1298 1240 74.62      
10 A' 1138 1087 33.29      
11 A' 1063 1015 43.87      
12 A' 920 879 9.82      
13 A' 419 400 10.21      
14 A" 3142 3002 30.95      
15 A" 3050 2914 47.42      
16 A" 1503 1436 4.80      
17 A" 1320 1262 0.00      
18 A" 1200 1147 3.95      
19 A" 827 790 0.00      
20 A" 287 275 76.20      
21 A" 243 232 39.55      

Unscaled Zero Point Vibrational Energy (zpe) 17749.5 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 16959.7 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 QCISD/cc-pVTZ
ABC
1.17607 0.31464 0.27361

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.167 -0.411 0.000
C2 0.000 0.554 0.000
O3 -1.193 -0.211 0.000
H4 -1.938 0.389 0.000
H5 2.112 0.132 0.000
H6 1.129 -1.047 0.884
H7 1.129 -1.047 -0.884
H8 0.056 1.199 0.884
H9 0.056 1.199 -0.884

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.51402.36773.20581.09031.08961.08962.14652.1465
C21.51401.41721.94512.15372.14932.14931.09541.0954
O32.36771.41720.95653.32262.62102.62102.08052.0805
H43.20581.94510.95654.05813.49963.49962.32652.3265
H51.09032.15373.32264.05811.77151.77152.47962.4796
H61.08962.14932.62103.49961.77151.76752.48963.0531
H71.08962.14932.62103.49961.77151.76753.05312.4896
H82.14651.09542.08052.32652.47962.48963.05311.7673
H92.14651.09542.08052.32652.47963.05312.48961.7673

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.712 C1 C2 H8 109.650
C1 C2 H9 109.650 C2 C1 H5 110.529
C2 C1 H6 110.216 C2 C1 H7 110.216
C2 O3 H4 108.495 O3 C2 H8 111.142
O3 C2 H9 111.142 H5 C1 H6 108.714
H5 C1 H7 108.714 H6 C1 H7 108.398
H8 C2 H9 107.542
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability