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All results from a given calculation for CH2CH2OH (2-hydroxy ethyl radical)

using model chemistry: QCISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS 2A'
1 2 yes C1 2A

Conformer 1 (CS)

Jump to S1C2
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-153.888629
Energy at 298.15K 
HF Energy-153.439235
Nuclear repulsion energy74.477558
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' 3746 3567 8.70      
2 A' 3187 3035 8.44      
3 A' 3024 2880 59.02      
4 A' 1578 1503 1.69      
5 A' 1524 1451 4.12      
6 A' 1472 1401 7.20      
7 A' 1270 1210 70.95      
8 A' 1090 1038 79.89      
9 A' 1023 974 26.71      
10 A' 621 591 16.93      
11 A' 380 362 33.79      
12 A" 3291 3134 13.70      
13 A" 3059 2913 61.71      
14 A" 1316 1253 0.15      
15 A" 1199 1142 1.51      
16 A" 827 788 0.43      
17 A" 277 263 139.12      
18 A" 79i 76i 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 14401.8 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 13714.8 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
1.24020 0.32794 0.28907

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)
O1 -1.110 -0.373 0.000
C2 0.000 0.543 0.000
C3 1.263 -0.251 0.000
H4 -1.923 0.161 0.000
H5 -0.038 1.192 0.890
H6 -0.038 1.192 -0.890
H7 1.651 -0.657 -0.930
H8 1.651 -0.657 0.930

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8
O11.44002.37700.97242.09562.09562.92752.9275
C21.44001.49221.96051.10181.10182.24322.2432
C32.37701.49223.21272.13692.13691.08651.0865
H40.97241.96053.21272.32522.32523.78233.7823
H52.09561.10182.13692.32521.77993.09582.5046
H62.09561.10182.13692.32521.77992.50463.0958
H72.92752.24321.08653.78233.09582.50461.8602
H82.92752.24321.08653.78232.50463.09581.8602

picture of 2-hydroxy ethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 108.308 O1 C2 H5 110.363
O1 C2 H6 110.363 C2 O1 H4 107.119
C2 C3 H7 120.069 C2 C3 H8 120.069
C3 C2 H5 110.026 C3 C2 H6 110.026
H5 C2 H6 107.757 H7 C3 H8 117.749
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-153.889839
Energy at 298.15K-153.894521
HF Energy-153.440177
Nuclear repulsion energy74.747737
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 3770 3590 14.53      
2 A 3307 3149 7.69      
3 A 3196 3044 6.05      
4 A 3009 2866 64.80      
5 A 2951 2811 65.91      
6 A 1562 1487 3.13      
7 A 1515 1443 8.07      
8 A 1465 1395 2.17      
9 A 1309 1247 76.75      
10 A 1251 1192 6.17      
11 A 1148 1093 30.64      
12 A 1104 1051 34.32      
13 A 1005 957 8.53      
14 A 893 851 15.73      
15 A 459 437 20.77      
16 A 396 377 43.58      
17 A 287 274 114.70      
18 A 156 148 18.91      

Unscaled Zero Point Vibrational Energy (zpe) 14391.7 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 13705.2 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
1.31585 0.33471 0.28290

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.104 -0.385 -0.058
C2 -0.012 0.529 0.036
C3 1.250 -0.255 -0.019
H4 -1.917 0.119 0.104
H5 -0.072 1.108 0.979
H6 -0.039 1.267 -0.786
H7 2.195 0.240 -0.218
H8 1.246 -1.297 0.285

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8
O11.42722.35770.97002.09062.09673.36182.5440
C21.42721.48701.94921.10901.10492.24072.2317
C32.35771.48703.19092.14582.13711.08581.0849
H40.97001.94923.19092.26862.37414.12623.4701
H52.09061.10902.14582.26861.77312.70732.8295
H62.09671.10492.13712.37411.77312.52363.0615
H73.36182.24071.08584.12622.70732.52361.8750
H82.54402.23171.08493.47012.82953.06151.8750

picture of 2-hydroxy ethyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 107.988 O1 C2 H5 110.408
O1 C2 H6 111.162 C2 O1 H4 107.265
C2 C3 H7 120.327 C2 C3 H8 119.566
C3 C2 H5 110.656 C3 C2 H6 110.214
H5 C2 H6 106.435 H7 C3 H8 119.491
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability