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: CCSD(T)=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at CCSD(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-154.179857
Energy at 298.15K-154.184865
HF Energy-153.518517
Nuclear repulsion energy75.219507
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 CCSD(T)=FULL/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 3878 3715        
2 A 3171 3038        
3 A 3126 2995        
4 A 3080 2951        
5 A 2999 2873        
6 A 1512 1448        
7 A 1488 1426        
8 A 1476 1414        
9 A 1403 1344        
10 A 1296 1241        
11 A 1228 1177        
12 A 1074 1029        
13 A 1037 994        
14 A 941 901        
15 A 605 580        
16 A 410 393        
17 A 370 355        
18 A 193 185        

Unscaled Zero Point Vibrational Energy (zpe) 14644.3 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 14029.2 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 CCSD(T)=FULL/cc-pVTZ
ABC
1.53992 0.31797 0.27874

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.091 0.508 -0.104
C2 1.223 -0.165 0.013
O3 -1.162 -0.341 0.020
H4 -0.229 1.518 0.254
H5 1.278 -1.007 -0.675
H6 2.025 0.530 -0.225
H7 1.397 -0.552 1.022
H8 -1.966 0.182 0.010

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.48051.37331.07982.12052.11892.14631.9069
C21.48052.39182.23531.08901.08701.09503.2075
O31.37332.39182.09342.62323.31302.75710.9589
H41.07982.23532.09343.08372.50692.74212.2049
H52.12051.08902.62323.08371.76691.76103.5221
H62.11891.08703.31302.50691.76691.76614.0126
H72.14631.09502.75712.74211.76101.76613.5883
H81.90693.20750.95892.20493.52214.01263.5883

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 110.298 C1 C2 H6 110.287
C1 C2 H7 112.018 C1 O3 H8 108.389
C2 C1 O3 113.825 C2 C1 H4 120.830
O3 C1 H4 116.655 H5 C2 H6 108.581
H5 C2 H7 107.476 H6 C2 H7 108.063
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability