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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: MP2=FULL/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-230.502769
Energy at 298.15K-230.506095
Nuclear repulsion energy188.216457
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/cc-pVTZ
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 3263 3098 6.06      
2 A1 3232 3068 1.49      
3 A1 1960 1861 2.00      
4 A1 1510 1433 0.79      
5 A1 1388 1318 1.13      
6 A1 1184 1124 0.66      
7 A1 1080 1025 18.81      
8 A1 1011 960 4.61      
9 A1 611 580 0.08      
10 A2 978 929 0.00      
11 A2 888 843 0.00      
12 A2 685 650 0.00      
13 A2 491 466 0.00      
14 B1 937 890 0.08      
15 B1 770 731 79.84      
16 B1 401 381 5.47      
17 B2 3259 3094 11.57      
18 B2 3210 3047 0.27      
19 B2 1495 1419 1.51      
20 B2 1428 1356 9.98      
21 B2 1276 1211 0.00      
22 B2 1125 1068 0.97      
23 B2 880 835 13.71      
24 B2 584 554 13.63      

Unscaled Zero Point Vibrational Energy (zpe) 16821.4 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 15970.2 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/cc-pVTZ
ABC
0.23672 0.19132 0.10581

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.629 -1.233
C2 0.000 -0.629 -1.233
C3 0.000 1.457 -0.128
C4 0.000 -1.457 -0.128
C5 0.000 0.701 1.050
C6 0.000 -0.701 1.050
H7 0.000 2.531 -0.124
H8 0.000 -2.531 -0.124
H9 0.000 1.218 1.995
H10 0.000 -1.218 1.995

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.25751.38052.36002.28412.64182.20223.34903.28153.7192
C21.25752.36001.38052.64182.28413.34902.20223.71923.2815
C31.38052.36002.91361.40002.45821.07473.98822.13683.4155
C42.36001.38052.91362.45821.40003.98821.07473.41552.1368
C52.28412.64181.40002.45821.40132.17503.43881.07762.1391
C62.64182.28412.45821.40001.40133.43882.17502.13911.0776
H72.20223.34901.07473.98822.17503.43885.06292.49324.3073
H83.34902.20223.98821.07473.43882.17505.06294.30732.4932
H93.28153.71922.13683.41551.07762.13912.49324.30732.4367
H103.71923.28153.41552.13682.13911.07764.30732.49322.4367

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 126.856 C1 C3 C5 110.456
C1 C3 H7 127.074 C2 C1 C3 126.856
C2 C4 C6 110.456 C2 C4 H8 127.074
C3 C5 C6 122.688 C3 C5 H9 118.602
C4 C6 C5 122.688 C4 C6 H10 118.602
C5 C3 H7 122.471 C5 C6 H10 118.710
C6 C4 H8 122.471 C6 C5 H9 118.710
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability