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All results from a given calculation for CH3CH2OH (Ethanol)

using model chemistry: QCISD/6-31G**

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/6-31G**
 hartrees
Energy at 0K-154.604427
Energy at 298.15K-154.611159
HF Energy-154.089177
Nuclear repulsion energy81.849120
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/6-31G**
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' 3908 3679 14.50      
2 A' 3199 3012 30.73      
3 A' 3115 2932 15.00      
4 A' 3057 2877 65.47      
5 A' 1594 1501 3.10      
6 A' 1560 1469 2.25      
7 A' 1514 1425 15.76      
8 A' 1454 1369 0.02      
9 A' 1311 1235 86.69      
10 A' 1148 1080 21.26      
11 A' 1076 1013 49.24      
12 A' 933 879 10.64      
13 A' 424 399 11.23      
14 A" 3208 3020 32.54      
15 A" 3091 2910 69.53      
16 A" 1544 1453 3.06      
17 A" 1335 1257 0.02      
18 A" 1222 1151 4.94      
19 A" 841 792 0.15      
20 A" 304 286 97.84      
21 A" 260 245 36.30      

Unscaled Zero Point Vibrational Energy (zpe) 18048.2 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 16990.5 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/6-31G**
ABC
1.16693 0.31439 0.27293

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.171 -0.405 0.000
C2 0.000 0.558 0.000
O3 -1.194 -0.221 0.000
H4 -1.942 0.385 0.000
H5 2.116 0.139 0.000
H6 1.131 -1.041 0.884
H7 1.131 -1.041 -0.884
H8 0.046 1.206 0.884
H9 0.046 1.206 -0.884

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8 H9
C11.51602.37183.21091.09081.08961.08962.15452.1545
C21.51601.42581.94942.15722.14902.14901.09691.0969
O32.37181.42580.96223.32962.61912.61912.08702.0870
H43.21091.94940.96224.06513.50083.50082.32522.3252
H51.09082.15723.32964.06511.77311.77312.49092.4909
H61.08962.14902.61913.50081.77311.76782.49523.0581
H71.08962.14902.61913.50081.77311.76783.05812.4952
H82.15451.09692.08702.32522.49092.49523.05811.7681
H92.15451.09692.08702.32522.49093.05812.49521.7681

picture of Ethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.420 C1 C2 H8 110.050
C1 C2 H9 110.050 C2 C1 H5 110.624
C2 C1 H6 110.048 C2 C1 H7 110.048
C2 O3 H4 107.858 O3 C2 H8 110.968
O3 C2 H9 110.968 H5 C1 H6 108.818
H5 C1 H7 108.818 H6 C1 H7 108.436
H8 C2 H9 107.401
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability