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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: MP2=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-230.349871
Energy at 298.15K-230.352972
Nuclear repulsion energy186.798308
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 MP2=FULL/6-311G*
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 3240 3069 6.05      
2 A1 3216 3046 3.51      
3 A1 1934 1832 3.39      
4 A1 1504 1425 0.19      
5 A1 1383 1310 1.94      
6 A1 1181 1119 0.61      
7 A1 1067 1011 22.10      
8 A1 1008 954 4.44      
9 A1 610 577 0.07      
10 A2 868 823 0.00      
11 A2 830 786 0.00      
12 A2 532 504 0.00      
13 A2 471 446 0.00      
14 B1 859 813 0.72      
15 B1 734 695 96.21      
16 B1 383 363 6.75      
17 B2 3237 3066 17.94      
18 B2 3202 3032 0.48      
19 B2 1497 1418 1.66      
20 B2 1424 1349 12.89      
21 B2 1272 1205 0.01      
22 B2 1124 1064 1.11      
23 B2 874 828 10.84      
24 B2 589 558 9.93      

Unscaled Zero Point Vibrational Energy (zpe) 16519.1 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 15645.3 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 MP2=FULL/6-311G*
ABC
0.23295 0.18866 0.10424

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.633 -1.244
C2 0.000 -0.633 -1.244
C3 0.000 1.466 -0.128
C4 0.000 -1.466 -0.128
C5 0.000 0.706 1.058
C6 0.000 -0.706 1.058
H7 0.000 2.551 -0.126
H8 0.000 -2.551 -0.126
H9 0.000 1.229 2.011
H10 0.000 -1.229 2.011

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.26661.39212.37742.30252.66272.21983.37493.30913.7502
C21.26662.37741.39212.66272.30253.37492.21983.75023.3091
C31.39212.37742.93241.40862.47501.08504.01742.15273.4415
C42.37741.39212.93242.47501.40864.01741.08503.44152.1527
C52.30252.66271.40862.47501.41232.19213.46581.08772.1577
C62.66272.30252.47501.40861.41233.46582.19212.15771.0877
H72.21983.37491.08504.01742.19213.46585.10242.51304.3430
H83.37492.21984.01741.08503.46582.19215.10244.34302.5130
H93.30913.75022.15273.44151.08772.15772.51304.34302.4588
H103.75023.30913.44152.15272.15771.08774.34302.51302.4588

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 126.752 C1 C3 C5 110.594
C1 C3 H7 126.872 C2 C1 C3 126.752
C2 C4 C6 110.594 C2 C4 H8 126.872
C3 C5 C6 122.654 C3 C5 H9 118.592
C4 C6 C5 122.654 C4 C6 H10 118.592
C5 C3 H7 122.534 C5 C6 H10 118.753
C6 C4 H8 122.534 C6 C5 H9 118.753
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability