return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C8H6 (Calicene)

using model chemistry: CCSD(T)=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD(T)=FULL/6-31G*
 hartrees
Energy at 0K-307.424107
Energy at 298.15K-307.428528
HF Energy-306.287513
Nuclear repulsion energy298.558963
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 CCSD(T)=FULL/6-31G*
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 3311 3214        
2 A1 3233 3138        
3 A1 3209 3115        
4 A1 1838 1784        
5 A1 1588 1542        
6 A1 1528 1483        
7 A1 1430 1388        
8 A1 1222 1186        
9 A1 1101 1069        
10 A1 1029 998        
11 A1 962 934        
12 A1 887 861        
13 A1 486 471        
14 A2 846 821        
15 A2 811 787        
16 A2 668 648        
17 A2 545 529        
18 A2 215 209        
19 B1 839 814        
20 B1 710 690        
21 B1 632 613        
22 B1 561 545        
23 B1 375 364        
24 B1 115 112        
25 B2 3273 3177        
26 B2 3225 3130        
27 B2 3201 3107        
28 B2 1604 1557        
29 B2 1364 1324        
30 B2 1245 1209        
31 B2 1123 1090        
32 B2 1115 1082        
33 B2 946 919        
34 B2 832 808        
35 B2 494 479        
36 B2 143 139        

Unscaled Zero Point Vibrational Energy (zpe) 23352.4 cm-1
Scaled (by 0.9707) Zero Point Vibrational Energy (zpe) 22668.1 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 CCSD(T)=FULL/6-31G*
ABC
0.22379 0.04713 0.03893

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.045
C2 0.000 0.000 1.306
C3 0.000 0.666 2.581
C4 0.000 -0.666 2.581
C5 0.000 1.176 -0.916
C6 0.000 -1.176 -0.916
C7 0.000 0.732 -2.209
C8 0.000 -0.732 -2.209
H9 0.000 1.591 3.146
H10 0.000 -1.591 3.146
H11 0.000 2.207 -0.568
H12 0.000 -2.207 -0.568
H13 0.000 1.353 -3.103
H14 0.000 -1.353 -3.103

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14
C11.35102.70932.70931.46351.46352.28492.28493.56563.56562.26822.26823.34433.3443
C21.35101.43871.43872.51412.51413.59083.59082.43242.43242.89562.89564.61224.6122
C32.70931.43871.33293.53403.95284.79084.99041.08342.32703.50614.26335.72566.0324
C42.70931.43871.33293.95283.53404.99044.79082.32701.08344.26333.50616.03245.7256
C51.46352.51413.53403.95282.35201.36732.30524.08334.91491.08793.40082.19433.3438
C61.46352.51413.95283.53402.35202.30521.36734.91494.08333.40081.08793.34382.1943
C72.28493.59084.79084.99041.36732.30521.46445.42385.83762.20623.36611.08852.2689
C82.28493.59084.99044.79082.30521.36731.46445.83765.42383.36612.20622.26891.0885
H93.56562.43241.08342.32704.08334.91495.42385.83763.18183.76535.31246.25386.9081
H103.56562.43242.32701.08344.91494.08335.83765.42383.18185.31243.76536.90816.2538
H112.26822.89563.50614.26331.08793.40082.20623.36613.76535.31244.41392.67464.3703
H122.26822.89564.26333.50613.40081.08793.36612.20625.31243.76534.41394.37032.6746
H133.34434.61225.72566.03242.19433.34381.08852.26896.25386.90812.67464.37032.7065
H143.34434.61226.03245.72563.34382.19432.26891.08856.90816.25384.37032.67462.7065

picture of Calicene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 152.404 C1 C2 C4 152.404
C1 C5 C7 107.586 C1 C5 H11 124.841
C1 C6 C8 107.586 C1 C6 H12 124.841
C2 C1 C5 126.527 C2 C1 C6 126.527
C2 C3 C4 62.404 C2 C3 H9 149.030
C2 C4 C3 62.404 C2 C4 H10 149.030
C3 C2 C4 55.193 C3 C4 H10 148.566
C4 C3 H9 148.566 C5 C1 C6 106.945
C5 C7 C8 108.942 C5 C7 H13 126.266
C6 C8 C7 108.942 C6 C8 H14 126.266
C7 C5 H11 127.573 C7 C8 H14 124.792
C8 C6 H12 127.573 C8 C7 H13 124.792
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability