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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-230.232171
Energy at 298.15K-230.235183
Nuclear repulsion energy186.113916
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 MP4/6-31G*
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 3210 3064        
2 A1 3186 3042        
3 A1 1891 1805        
4 A1 1495 1427        
5 A1 1356 1294        
6 A1 1185 1132        
7 A1 1065 1017        
8 A1 1007 962        
9 A1 610 583        
10 A2 875 835        
11 A2 837 799        
12 A2 538 514        
13 A2 448 428        
14 B1 863 824        
15 B1 733 700        
16 B1 383 365        
17 B2 3206 3061        
18 B2 3171 3028        
19 B2 1502 1435        
20 B2 1429 1364        
21 B2 1276 1218        
22 B2 1124 1073        
23 B2 855 817        
24 B2 522 498        

Unscaled Zero Point Vibrational Energy (zpe) 16382.3 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 15641.8 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 MP4/6-31G*
ABC
0.23046 0.18789 0.10350

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.638 -1.251
C2 0.000 -0.638 -1.251
C3 0.000 1.468 -0.129
C4 0.000 -1.468 -0.129
C5 0.000 0.707 1.064
C6 0.000 -0.707 1.064
H7 0.000 2.557 -0.127
H8 0.000 -2.557 -0.127
H9 0.000 1.233 2.021
H10 0.000 -1.233 2.021

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.27581.39552.38592.31512.67672.22383.38683.32483.7684
C21.27582.38591.39552.67672.31513.38682.22383.76843.3248
C31.39552.38592.93531.41382.48031.08964.02502.16173.4516
C42.38591.39552.93532.48031.41384.02501.08963.45162.1617
C52.31512.67671.41382.48031.41492.20013.47521.09202.1639
C62.67672.31512.48031.41381.41493.47522.20012.16391.0920
H72.22383.38681.08964.02502.20013.47525.11462.52324.3569
H83.38682.22384.02501.08963.47522.20015.11464.35692.5232
H93.32483.76842.16173.45161.09202.16392.52324.35692.4666
H103.76843.32483.45162.16172.16391.09204.35692.52322.4666

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 126.484 C1 C3 C5 110.987
C1 C3 H7 126.539 C2 C1 C3 126.484
C2 C4 C6 110.987 C2 C4 H8 126.539
C3 C5 C6 122.529 C3 C5 H9 118.682
C4 C6 C5 122.529 C4 C6 H10 118.682
C5 C3 H7 122.474 C5 C6 H10 118.789
C6 C4 H8 122.474 C6 C5 H9 118.789
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability