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

using model chemistry: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-51.947272
Energy at 298.15K-51.954258
HF Energy-51.947272
Nuclear repulsion energy136.786010
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 HF/CEP-31G
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 3420 3083 0.34      
2 A1 3370 3038 14.75      
3 A1 3206 2890 32.71      
4 A1 1884 1698 287.75      
5 A1 1788 1612 182.96      
6 A1 1601 1443 17.03      
7 A1 1533 1382 0.04      
8 A1 1302 1174 13.62      
9 A1 1033 931 2.84      
10 A1 939 846 7.56      
11 A1 824 743 0.41      
12 A1 532 480 4.58      
13 A2 1323 1192 0.00      
14 A2 1127 1016 0.00      
15 A2 843 760 0.00      
16 A2 393 354 0.00      
17 B1 3242 2922 33.43      
18 B1 1146 1033 1.58      
19 B1 1061 956 39.40      
20 B1 932 840 70.80      
21 B1 646 582 25.00      
22 B1 339 306 4.18      
23 B1 137 124 2.05      
24 B2 3417 3080 44.81      
25 B2 3369 3036 26.64      
26 B2 1814 1635 2.59      
27 B2 1552 1399 32.99      
28 B2 1519 1369 1.54      
29 B2 1411 1272 35.92      
30 B2 1250 1127 10.16      
31 B2 1075 969 10.91      
32 B2 619 558 0.06      
33 B2 477 430 22.13      

Unscaled Zero Point Vibrational Energy (zpe) 24560.5 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 22138.8 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 HF/CEP-31G
ABC
0.17111 0.08760 0.05855

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

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 -1.846
C3 0.000 1.274 0.337
C4 0.000 -1.274 0.337
C5 0.000 1.269 -1.017
C6 0.000 -1.269 -1.017
O7 0.000 0.000 2.356
H8 0.000 2.185 0.910
H9 0.000 -2.185 0.910
H10 0.000 2.204 -1.557
H11 0.000 -2.204 -1.557
H12 0.870 0.000 -2.507
H13 -0.870 0.000 -2.507

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.96111.49251.49252.48102.48101.24062.19452.19453.46353.46353.72513.7251
C22.96112.52742.52741.51611.51614.20173.51653.51652.22282.22281.09241.0924
C31.49252.52742.54721.35372.88062.38681.07613.50552.10993.95973.23533.2353
C41.49252.52742.54722.88061.35372.38683.50551.07613.95972.10993.23533.2353
C52.48101.51611.35372.88062.53823.60332.13273.95471.07963.51482.14202.1420
C62.48101.51612.88061.35372.53823.60333.95472.13273.51481.07962.14202.1420
O71.24064.20172.38682.38683.60333.60332.62012.62014.49044.49044.93984.9398
H82.19453.51651.07613.50552.13273.95472.62014.36962.46625.03424.14754.1475
H92.19453.51653.50551.07613.95472.13272.62014.36965.03422.46624.14754.1475
H103.46352.22282.10993.95971.07963.51484.49042.46625.03424.40782.55282.5528
H113.46352.22283.95972.10993.51481.07964.49045.03422.46624.40782.55282.5528
H123.72511.09243.23533.23532.14202.14204.93984.14754.14752.55282.55281.7396
H133.72511.09243.23533.23532.14202.14204.93984.14754.14752.55282.55281.7396

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 121.232 C1 C3 H8 116.442
C1 C4 C6 121.232 C1 C4 H9 116.442
C2 C5 C3 123.353 C2 C5 H10 116.823
C2 C6 C4 123.353 C2 C6 H11 116.823
C3 C1 C4 117.156 C3 C1 O7 121.422
C3 C5 H10 119.824 C4 C1 O7 121.422
C4 C6 H11 119.824 C5 C2 C6 113.674
C5 C2 H12 109.327 C5 C2 H13 109.327
C5 C3 H8 122.325 C6 C2 H12 109.327
C6 C2 H13 109.327 C6 C4 H9 122.325
H12 C2 H13 105.539
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.195      
2 C -0.014      
3 C -0.091      
4 C -0.091      
5 C -0.330      
6 C -0.330      
7 O -0.215      
8 H 0.281      
9 H 0.281      
10 H 0.233      
11 H 0.233      
12 H 0.120      
13 H 0.120      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -5.736 5.736
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.368 0.000 0.000
y 0.000 -36.457 0.000
z 0.000 0.000 -48.925
Traceless
 xyz
x -0.677 0.000 0.000
y 0.000 9.690 0.000
z 0.000 0.000 -9.013
Polar
3z2-r2-18.025
x2-y2-6.911
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.598 0.000 0.000
y 0.000 7.795 0.000
z 0.000 0.000 14.423


<r2> (average value of r2) Å2
<r2> 153.590
(<r2>)1/2 12.393