return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3CHOH (1-hydroxy-ethyl radical)

using model chemistry: CISD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at CISD/6-31G
 hartrees
Energy at 0K-153.676313
Energy at 298.15K-153.681312
HF Energy-153.389853
Nuclear repulsion energy73.959409
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 CISD/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 3776 3541 20.18      
2 A 3188 2990 55.08      
3 A 3159 2963 10.92      
4 A 3121 2927 25.17      
5 A 3045 2856 28.13      
6 A 1577 1479 2.95      
7 A 1553 1457 7.22      
8 A 1513 1419 16.89      
9 A 1476 1384 3.90      
10 A 1315 1233 96.74      
11 A 1201 1127 51.63      
12 A 1114 1045 16.06      
13 A 1095 1026 44.54      
14 A 946 887 14.59      
15 A 638 598 14.76      
16 A 416 390 16.17      
17 A 359 336 200.56      
18 A 178 167 5.87      

Unscaled Zero Point Vibrational Energy (zpe) 14834.7 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 13912.0 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 CISD/6-31G
ABC
1.48569 0.30754 0.26923

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.077 0.528 -0.101
C2 1.240 -0.177 0.010
O3 -1.186 -0.338 0.028
H4 -0.205 1.546 0.269
H5 1.269 -1.027 -0.682
H6 2.058 0.508 -0.240
H7 1.416 -0.567 1.025
H8 -2.031 0.131 -0.054

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.49761.41281.09022.13752.13972.16711.9948
C21.49762.43092.26311.09651.09611.10183.2859
O31.41282.43092.13702.64713.36312.79570.9698
H41.09022.26312.13703.11412.54132.76862.3325
H52.13751.09652.64713.11411.78161.77353.5536
H62.13971.09613.36312.54131.78161.78044.1109
H72.16711.10182.79572.76861.77351.78043.6788
H81.99483.28590.96982.33253.55364.11093.6788

picture of 1-hydroxy-ethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.010 C1 C2 H6 110.206
C1 C2 H7 112.067 C1 O3 H8 112.369
C2 C1 O3 113.256 C2 C1 H4 121.178
O3 C1 H4 116.658 H5 C2 H6 108.688
H5 C2 H7 107.565 H6 C2 H7 108.202
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability