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All results from a given calculation for C6H6O (2,5-Cyclohexadienone)

using model chemistry: CCD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/6-31G(2df,p)
 hartrees
Energy at 0K-306.715971
Energy at 298.15K-306.722626
HF Energy-305.571325
Nuclear repulsion energy269.077093
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/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3253 3081 0.06      
2 A1 3216 3047 3.08      
3 A1 3067 2905 8.67      
4 A1 1844 1746 222.56      
5 A1 1746 1654 0.02      
6 A1 1483 1405 9.43      
7 A1 1435 1360 2.68      
8 A1 1209 1145 3.60      
9 A1 970 919 3.18      
10 A1 900 852 6.50      
11 A1 781 740 2.24      
12 A1 501 475 1.67      
13 A2 1233 1168 0.00      
14 A2 1031 976 0.00      
15 A2 770 729 0.00      
16 A2 362 343 0.00      
17 B1 3094 2930 6.22      
18 B1 1048 992 0.36      
19 B1 980 928 22.19      
20 B1 875 829 31.83      
21 B1 590 559 16.23      
22 B1 312 295 2.49      
23 B1 122 116 1.28      
24 B2 3251 3080 10.26      
25 B2 3216 3046 10.65      
26 B2 1720 1629 2.33      
27 B2 1447 1371 34.64      
28 B2 1413 1338 1.77      
29 B2 1298 1230 24.78      
30 B2 1156 1095 7.34      
31 B2 1011 958 4.66      
32 B2 578 548 0.19      
33 B2 455 431 14.95      

Unscaled Zero Point Vibrational Energy (zpe) 23182.7 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 21958.7 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/6-31G(2df,p)
ABC
0.17447 0.08940 0.05975

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.115
C2 0.000 0.000 -1.824
C3 0.000 1.258 0.331
C4 0.000 -1.258 0.331
C5 0.000 1.256 -1.005
C6 0.000 -1.256 -1.005
O7 0.000 0.000 2.328
H8 0.000 2.175 0.907
H9 0.000 -2.175 0.907
H10 0.000 2.194 -1.551
H11 0.000 -2.194 -1.551
H12 0.869 0.000 -2.494
H13 -0.869 0.000 -2.494

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.93911.48271.48272.46482.46481.21272.18542.18543.45353.45353.71303.7130
C22.93912.49482.49481.49931.49934.15183.49123.49122.21122.21121.09781.0978
C31.48272.49482.51601.33602.84712.36051.08343.48152.10223.93213.21243.2124
C41.48272.49482.51602.84711.33602.36053.48151.08343.93212.10223.21243.2124
C52.46481.49931.33602.84712.51243.56222.12163.92841.08553.49352.13332.1333
C62.46481.49932.84711.33602.51243.56223.92842.12163.49351.08552.13332.1333
O71.21274.15182.36052.36053.56223.56222.59852.59854.45714.45714.90024.9002
H82.18543.49121.08343.48152.12163.92842.59854.35092.45835.01384.13004.1300
H92.18543.49123.48151.08343.92842.12162.59854.35095.01382.45834.13004.1300
H103.45352.21122.10223.93211.08553.49354.45712.45835.01384.38872.54162.5416
H113.45352.21123.93212.10223.49351.08554.45715.01382.45834.38872.54162.5416
H123.71301.09783.21243.21242.13332.13334.90024.13004.13002.54162.54161.7381
H133.71301.09783.21243.21242.13332.13334.90024.13004.13002.54162.54161.7381

picture of 2,5-Cyclohexadienone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C5 121.875 C1 C3 H8 115.919
C1 C4 C6 121.875 C1 C4 H9 115.919
C2 C5 C3 123.163 C2 C5 H10 116.710
C2 C6 C4 123.163 C2 C6 H11 116.710
C3 C1 C4 116.094 C3 C1 O7 121.953
C3 C5 H10 120.126 C4 C1 O7 121.953
C4 C6 H11 120.126 C5 C2 C6 113.830
C5 C2 H12 109.483 C5 C2 H13 109.483
C5 C3 H8 122.207 C6 C2 H12 109.483
C6 C2 H13 109.483 C6 C4 H9 122.207
H12 C2 H13 104.679
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability