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All results from a given calculation for C8H6 (Calicene)

using model chemistry: QCISD/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 QCISD/3-21G
 hartrees
Energy at 0K-305.299453
Energy at 298.15K-305.303958
HF Energy-304.547279
Nuclear repulsion energy295.552658
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 QCISD/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 3300 3199 2.82      
2 A1 3217 3118 17.14      
3 A1 3188 3090 1.76      
4 A1 1794 1739 405.35      
5 A1 1543 1496 15.08      
6 A1 1498 1452 39.96      
7 A1 1395 1352 40.66      
8 A1 1183 1147 25.48      
9 A1 1109 1075 0.03      
10 A1 976 946 7.12      
11 A1 927 899 2.54      
12 A1 877 850 58.85      
13 A1 469 454 4.63      
14 A2 865 838 0.00      
15 A2 839 813 0.00      
16 A2 695 673 0.00      
17 A2 570 552 0.00      
18 A2 222 215 0.00      
19 B1 883 856 0.29      
20 B1 716 694 116.02      
21 B1 627 608 52.75      
22 B1 584 566 18.55      
23 B1 366 354 4.73      
24 B1 124 120 5.35      
25 B2 3259 3159 2.73      
26 B2 3205 3106 22.42      
27 B2 3181 3083 0.14      
28 B2 1575 1526 0.01      
29 B2 1344 1302 0.14      
30 B2 1189 1152 0.11      
31 B2 1127 1093 21.79      
32 B2 1120 1085 1.41      
33 B2 886 859 1.80      
34 B2 855 829 0.60      
35 B2 482 467 1.57      
36 B2 151 146 1.21      

Unscaled Zero Point Vibrational Energy (zpe) 23169.6 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 22456.0 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 QCISD/3-21G
ABC
0.21870 0.04610 0.03807

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.035
C2 0.000 0.000 1.304
C3 0.000 0.671 2.617
C4 0.000 -0.671 2.617
C5 0.000 1.191 -0.934
C6 0.000 -1.191 -0.934
C7 0.000 0.749 -2.229
C8 0.000 -0.749 -2.229
H9 0.000 1.590 3.179
H10 0.000 -1.590 3.179
H11 0.000 2.220 -0.586
H12 0.000 -2.220 -0.586
H13 0.000 1.363 -3.125
H14 0.000 -1.363 -3.125

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14
C11.33942.73592.73591.49201.49202.31772.31773.58643.58642.28782.28783.37663.3766
C21.33941.47431.47432.53522.53523.61123.61122.45862.45862.91622.91624.63374.6337
C32.73591.47431.34133.58894.00944.84635.04941.07762.32953.55864.31525.78326.0912
C42.73591.47431.34134.00943.58895.04944.84632.32951.07764.31523.55866.09125.7832
C51.49202.53523.58894.00942.38211.36822.33234.13264.96521.08653.42922.19743.3649
C61.49202.53524.00943.58892.38212.33231.36824.96524.13263.42921.08653.36492.1974
C72.31773.61124.84635.04941.36822.33231.49775.47305.89212.20523.39321.08622.2941
C82.31773.61125.04944.84632.33231.36821.49775.89215.47303.39322.20522.29411.0862
H93.58642.45861.07762.32954.13264.96525.47305.89213.17983.81825.35726.30806.9613
H103.58642.45862.32951.07764.96524.13265.89215.47303.17985.35723.81826.96136.3080
H112.28782.91623.55864.31521.08653.42922.20523.39323.81825.35724.44092.67914.3914
H122.28782.91624.31523.55863.42921.08653.39322.20525.35723.81824.44094.39142.6791
H133.37664.63375.78326.09122.19743.36491.08622.29416.30806.96132.67914.39142.7261
H143.37664.63376.09125.78323.36492.19742.29411.08626.96136.30804.39142.67912.7261

picture of Calicene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 152.942 C1 C2 C4 152.942
C1 C5 C7 108.176 C1 C5 H11 124.311
C1 C6 C8 108.176 C1 C6 H12 124.311
C2 C1 C5 127.033 C2 C1 C6 127.033
C2 C3 C4 62.942 C2 C3 H9 148.511
C2 C4 C3 62.942 C2 C4 H10 148.511
C3 C2 C4 54.115 C3 C4 H10 148.546
C4 C3 H9 148.546 C5 C1 C6 105.934
C5 C7 C8 108.857 C5 C7 H13 126.709
C6 C8 C7 108.857 C6 C8 H14 126.709
C7 C5 H11 127.513 C7 C8 H14 124.434
C8 C6 H12 127.513 C8 C7 H13 124.434
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability