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

using model chemistry: B2PLYP=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULL/3-21G
 hartrees
Energy at 0K-305.324219
Energy at 298.15K-305.330940
HF Energy-305.098793
Nuclear repulsion energy267.235135
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 B2PLYP=FULL/3-21G
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 3233 3078 0.22      
2 A1 3193 3040 5.22      
3 A1 3039 2893 5.20      
4 A1 1715 1633 64.54      
5 A1 1648 1569 66.07      
6 A1 1518 1445 16.05      
7 A1 1453 1383 1.00      
8 A1 1249 1189 6.36      
9 A1 982 935 4.49      
10 A1 869 827 6.63      
11 A1 757 721 1.74      
12 A1 519 495 2.05      
13 A2 1274 1213 0.00      
14 A2 1055 1004 0.00      
15 A2 777 740 0.00      
16 A2 377 359 0.00      
17 B1 3056 2910 5.77      
18 B1 1063 1012 1.45      
19 B1 989 942 25.18      
20 B1 893 850 43.07      
21 B1 602 573 35.82      
22 B1 327 311 2.05      
23 B1 132 125 0.35      
24 B2 3231 3076 16.84      
25 B2 3192 3038 12.58      
26 B2 1665 1585 4.64      
27 B2 1439 1370 13.19      
28 B2 1391 1324 5.10      
29 B2 1294 1232 26.67      
30 B2 1170 1114 26.56      
31 B2 991 943 11.91      
32 B2 591 562 2.07      
33 B2 441 420 11.58      

Unscaled Zero Point Vibrational Energy (zpe) 23062.6 cm-1
Scaled (by 0.952) Zero Point Vibrational Energy (zpe) 21955.6 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 B2PLYP=FULL/3-21G
ABC
0.17461 0.08721 0.05879

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.120
C2 0.000 0.000 -1.843
C3 0.000 1.252 0.326
C4 0.000 -1.252 0.326
C5 0.000 1.261 -1.016
C6 0.000 -1.261 -1.016
O7 0.000 0.000 2.370
H8 0.000 2.171 0.897
H9 0.000 -2.171 0.897
H10 0.000 2.200 -1.560
H11 0.000 -2.200 -1.560
H12 0.877 0.000 -2.507
H13 -0.877 0.000 -2.507

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.96281.48231.48232.48002.48001.25042.18232.18233.46723.46723.73183.7318
C22.96282.50382.50381.50801.50804.21323.49613.49612.21772.21771.10021.1002
C31.48232.50382.50301.34142.84802.39721.08273.46992.11083.93283.21903.2190
C41.48232.50382.50302.84801.34142.39723.46991.08273.93282.11083.21903.2190
C52.48001.50801.34142.84802.52173.61302.11853.92901.08533.50302.14102.1410
C62.48001.50802.84801.34142.52173.61303.92902.11853.50301.08532.14102.1410
O71.25044.21322.39722.39723.61303.61302.62342.62344.50414.50414.95594.9559
H82.18233.49611.08273.46992.11853.92902.62344.34192.45785.01424.13224.1322
H92.18233.49613.46991.08273.92902.11852.62344.34195.01422.45784.13224.1322
H103.46722.21772.11083.93281.08533.50304.50412.45785.01424.39922.55042.5504
H113.46722.21773.93282.11083.50301.08534.50415.01422.45784.39922.55042.5504
H123.73181.10023.21903.21902.14102.14104.95594.13224.13222.55042.55041.7538
H133.73181.10023.21903.21902.14102.14104.95594.13224.13222.55042.55041.7538

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 122.797 C1 C3 H8 115.727
C1 C4 C6 122.797 C1 C4 H9 115.727
C2 C5 C3 122.872 C2 C5 H10 116.612
C2 C6 C4 122.872 C2 C6 H11 116.612
C3 C1 C4 115.202 C3 C1 O7 122.399
C3 C5 H10 120.517 C4 C1 O7 122.399
C4 C6 H11 120.517 C5 C2 C6 113.461
C5 C2 H12 109.349 C5 C2 H13 109.349
C5 C3 H8 121.476 C6 C2 H12 109.349
C6 C2 H13 109.349 C6 C4 H9 121.476
H12 C2 H13 105.692
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability