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All results from a given calculation for C2H5OO (ethylperoxy radical)

using model chemistry: CCD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at CCD/cc-pVTZ
 hartrees
Energy at 0K-229.144620
Energy at 298.15K-229.150673
HF Energy-228.331927
Nuclear repulsion energy124.869069
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 CCD/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' 3161 2951 15.60      
2 A' 3102 2897 14.30      
3 A' 3078 2874 9.72      
4 A' 1539 1437 4.81      
5 A' 1522 1421 1.98      
6 A' 1447 1351 18.19      
7 A' 1410 1316 2.70      
8 A' 1259 1176 112.07      
9 A' 1173 1095 12.05      
10 A' 1076 1005 15.07      
11 A' 894 834 2.88      
12 A' 524 490 9.21      
13 A' 316 295 1.20      
14 A" 3171 2961 30.40      
15 A" 3149 2940 0.27      
16 A" 1508 1408 5.73      
17 A" 1306 1219 0.42      
18 A" 1186 1107 4.30      
19 A" 818 764 0.64      
20 A" 236 220 0.47      
21 A" 88 82 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 15981.5 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 14921.9 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 CCD/cc-pVTZ
ABC
1.12710 0.15002 0.13932

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.494 0.892 0.000
C2 0.000 0.667 0.000
O3 -0.216 -0.761 0.000
O4 -1.485 -1.035 0.000
H5 1.701 1.961 0.000
H6 1.951 0.452 0.884
H7 1.951 0.452 -0.884
H8 -0.479 1.075 -0.887
H9 -0.479 1.075 0.887

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8 H9
C11.51082.37863.54781.08891.08851.08852.17122.1712
C21.51081.44412.25882.13752.15302.15301.08801.0880
O32.37861.44411.29753.32972.63672.63672.05612.0561
O43.54782.25881.29754.37373.84703.84702.50062.5006
H51.08892.13753.32974.37371.76681.76682.51532.5153
H61.08852.15302.63673.84701.76681.76843.07152.5092
H71.08852.15302.63673.84701.76681.76842.50923.0715
H82.17121.08802.05612.50062.51533.07152.50921.7745
H92.17121.08802.05612.50062.51532.50923.07151.7745

picture of ethylperoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.197 C1 C2 H8 112.314
C1 C2 H9 112.314 C2 C1 H5 109.553
C2 C1 H6 110.809 C2 C1 H7 110.809
C2 O3 O4 110.841 O3 C2 H8 107.757
O3 C2 H9 107.757 H5 C1 H6 108.480
H5 C1 H7 108.480 H6 C1 H7 108.646
H8 C2 H9 109.279
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability