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 C6H6 (Benzvalene)

using model chemistry: CCSD(T)=FULL/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-231.477893
Energy at 298.15K-231.484237
HF Energy-230.585563
Nuclear repulsion energy212.196407
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/cc-pVDZ
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 3261 3141        
2 A1 3247 3127        
3 A1 3209 3090        
4 A1 1597 1539        
5 A1 1409 1357        
6 A1 1180 1137        
7 A1 1100 1060        
8 A1 981 945        
9 A1 916 882        
10 A1 760 732        
11 A1 668 643        
12 A2 1113 1072        
13 A2 909 876        
14 A2 858 826        
15 A2 792 762        
16 A2 530 511        
17 B1 3229 3110        
18 B1 1124 1083        
19 B1 987 950        
20 B1 755 727        
21 B1 628 605        
22 B1 509 490        
23 B2 3235 3116        
24 B2 3208 3090        
25 B2 1341 1292        
26 B2 1273 1226        
27 B2 1215 1171        
28 B2 981 945        
29 B2 854 822        
30 B2 815 785        

Unscaled Zero Point Vibrational Energy (zpe) 21340.3 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 20555.0 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 CCSD(T)=FULL/cc-pVDZ
ABC
0.24221 0.17305 0.12782

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.737 0.000 -1.013
C2 -0.737 0.000 -1.013
C3 0.000 1.082 -0.207
C4 0.000 -1.082 -0.207
C5 0.000 0.679 1.260
C6 0.000 -0.679 1.260
H7 1.497 0.000 -1.799
H8 -1.497 0.000 -1.799
H9 0.000 2.123 -0.549
H10 0.000 -2.123 -0.549
H11 0.000 1.365 2.111
H12 0.000 -1.365 2.111

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.47471.53791.53792.48402.48401.09292.36842.29502.29503.48823.4882
C21.47471.53791.53792.48402.48402.36841.09292.29502.29503.48823.4882
C31.53791.53792.16481.52102.29222.43862.43861.09573.22392.33513.3710
C41.53791.53792.16482.29221.52102.43862.43863.22391.09573.37102.3351
C52.48402.48401.52102.29221.35853.47233.47232.31473.33571.09332.2146
C62.48402.48402.29221.52101.35853.47233.47233.33572.31472.21461.0933
H71.09292.36842.43862.43863.47233.47232.99372.88272.88274.40364.4036
H82.36841.09292.43862.43863.47233.47232.99372.88272.88274.40364.4036
H92.29502.29501.09573.22392.31473.33572.88272.88274.24652.76634.3871
H102.29502.29503.22391.09573.33572.31472.88272.88274.24654.38712.7663
H113.48823.48822.33513.37101.09332.21464.40364.40362.76634.38712.7303
H123.48823.48823.37102.33512.21461.09334.40364.40364.38712.76632.7303

picture of Benzvalene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 61.351 C1 C2 C4 61.351
C1 C2 H8 134.025 C1 C3 C2 57.298
C1 C3 C5 108.595 C1 C3 H9 120.313
C1 C4 C2 57.298 C1 C4 C6 108.595
C1 C4 H10 120.313 C2 C1 C3 61.351
C2 C1 C4 61.351 C2 C1 H7 134.025
C2 C3 C5 108.595 C2 C3 H9 120.313
C2 C4 C6 108.595 C2 C4 H10 120.313
C3 C1 C4 89.468 C3 C1 H7 135.244
C3 C2 C4 89.468 C3 C2 H8 135.244
C3 C5 C6 105.372 C3 C5 H11 125.772
C4 C1 H7 135.244 C4 C2 H8 135.244
C4 C6 C5 105.372 C4 C6 H12 125.772
C5 C3 H9 123.585 C5 C6 H12 128.856
C6 C4 H10 123.585 C6 C5 H11 128.856
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability