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

using model chemistry: QCISD/TZVP

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/TZVP
 hartrees
Energy at 0K-154.015194
Energy at 298.15K 
HF Energy-153.504017
Nuclear repulsion energy74.677520
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/TZVP
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' 3861 3689 13.92      
2 A' 3187 3045 8.40      
3 A' 3040 2904 58.42      
4 A' 1548 1478 0.41      
5 A' 1522 1454 5.04      
6 A' 1469 1403 5.84      
7 A' 1265 1208 59.59      
8 A' 1074 1026 79.21      
9 A' 1006 961 33.08      
10 A' 639 611 19.36      
11 A' 393 376 31.69      
12 A" 3297 3149 11.31      
13 A" 3079 2941 50.47      
14 A" 1321 1262 0.36      
15 A" 1203 1149 1.14      
16 A" 828 791 1.14      
17 A" 251 239 129.79      
18 A" 71i 68i 1.53      

Unscaled Zero Point Vibrational Energy (zpe) 14455.3 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 13809.1 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/TZVP
ABC
1.26030 0.32721 0.28944

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.114 -0.373 0.000
C2 0.000 0.538 0.000
C3 1.264 -0.249 0.000
H4 -1.912 0.164 0.000
H5 -0.039 1.178 0.888
H6 -0.039 1.178 -0.888
H7 1.658 -0.638 -0.928
H8 1.658 -0.638 0.928

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8
O11.43862.38040.96202.08562.08562.93542.9354
C21.43861.48871.94861.09561.09562.23512.2351
C32.38041.48873.20262.12662.12661.08121.0812
H40.96201.94863.20262.30842.30843.77553.7755
H52.08561.09562.12662.30841.77653.07892.4864
H62.08561.09562.12662.30841.77652.48643.0789
H72.93542.23511.08123.77553.07892.48641.8564
H82.93542.23511.08123.77552.48643.07891.8564

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 108.808 O1 C2 H5 110.031
O1 C2 H6 110.031 C2 O1 H4 106.849
C2 C3 H7 120.020 C2 C3 H8 120.020
C3 C2 H5 109.817 C3 C2 H6 109.817
H5 C2 H6 108.330 H7 C3 H8 118.301
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD/TZVP
 hartrees
Energy at 0K-154.015744
Energy at 298.15K-154.020415
HF Energy-153.504775
Nuclear repulsion energy74.927030
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/TZVP
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 3882 3709 20.57      
2 A 3308 3160 7.35      
3 A 3194 3051 6.36      
4 A 3039 2903 55.23      
5 A 2969 2836 59.45      
6 A 1535 1466 5.41      
7 A 1506 1439 4.87      
8 A 1458 1393 2.78      
9 A 1308 1249 51.69      
10 A 1246 1190 17.42      
11 A 1140 1089 13.81      
12 A 1106 1056 62.27      
13 A 986 942 10.25      
14 A 871 832 14.28      
15 A 484 463 26.85      
16 A 392 374 34.68      
17 A 262 250 118.27      
18 A 150 143 9.79      

Unscaled Zero Point Vibrational Energy (zpe) 14417.6 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 13773.1 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/TZVP
ABC
1.33291 0.33266 0.28395

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.107 -0.382 -0.059
C2 -0.012 0.524 0.036
C3 1.250 -0.254 -0.020
H4 -1.904 0.125 0.111
H5 -0.069 1.093 0.979
H6 -0.038 1.259 -0.780
H7 2.186 0.246 -0.222
H8 1.251 -1.289 0.290

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8
O11.42442.36010.96022.08122.08683.35582.5503
C21.42441.48311.93561.10291.09872.23012.2236
C32.36011.48313.17922.13382.12721.08041.0799
H40.96021.93563.17922.24932.35874.10543.4622
H52.08121.10292.13382.24931.76702.69192.8091
H62.08681.09872.12722.35871.76702.50653.0491
H73.35582.23011.08044.10542.69192.50651.8681
H82.55032.22361.07993.46222.80913.04911.8681

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 108.513 O1 C2 H5 110.221
O1 C2 H6 110.941 C2 O1 H4 106.913
C2 C3 H7 120.085 C2 C3 H8 119.535
C3 C2 H5 110.344 C3 C2 H6 110.067
H5 C2 H6 106.757 H7 C3 H8 119.709
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability