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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: QCISD/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-154.787073
Energy at 298.15K-154.793737
HF Energy-154.145589
Nuclear repulsion energy81.900313
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/aug-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' 3879 3733 29.44      
2 A' 3134 3016 25.90      
3 A' 3058 2943 14.25      
4 A' 3022 2908 57.40      
5 A' 1552 1493 1.47      
6 A' 1524 1467 2.33      
7 A' 1476 1420 12.06      
8 A' 1423 1369 0.93      
9 A' 1290 1241 69.03      
10 A' 1128 1086 35.25      
11 A' 1061 1021 46.33      
12 A' 917 882 11.17      
13 A' 418 402 10.56      
14 A" 3139 3021 29.03      
15 A" 3054 2939 38.32      
16 A" 1507 1450 5.20      
17 A" 1318 1269 0.00      
18 A" 1197 1152 3.03      
19 A" 826 795 0.04      
20 A" 282 271 72.32      
21 A" 236 227 41.68      

Unscaled Zero Point Vibrational Energy (zpe) 17718.8 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 17052.6 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/aug-cc-pVTZ
ABC
1.17489 0.31371 0.27291

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.170 -0.404 0.000
C2 0.000 0.556 0.000
O3 -1.192 -0.220 0.000
H4 -1.942 0.377 0.000
H5 2.111 0.148 0.000
H6 1.138 -1.041 0.884
H7 1.138 -1.041 -0.884
H8 0.037 1.200 0.886
H9 0.037 1.200 -0.886

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.51322.36893.20801.09101.09051.09052.15352.1535
C21.51321.42271.95022.15022.15112.15111.09531.0953
O32.36891.42270.95843.32362.62362.62362.07652.0765
H43.20801.95020.95844.05943.50363.50362.31922.3192
H51.09102.15023.32364.05941.77271.77272.48832.4883
H61.09052.15112.62363.50361.77271.76882.49613.0601
H71.09052.15112.62363.50361.77271.76883.06012.4961
H82.15351.09532.07652.31922.48832.49613.06011.7715
H92.15351.09532.07652.31922.48833.06012.49611.7715

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.542 C1 C2 H8 110.264
C1 C2 H9 110.264 C2 C1 H5 110.261
C2 C1 H6 110.364 C2 C1 H7 110.364
C2 O3 H4 108.400 O3 C2 H8 110.427
O3 C2 H9 110.427 H5 C1 H6 108.704
H5 C1 H7 108.704 H6 C1 H7 108.390
H8 C2 H9 107.929
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability