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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: MP2=FULL/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-230.239395
Energy at 298.15K-230.242284
Nuclear repulsion energy186.921644
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/6-31+G**
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 3288 3088 6.85      
2 A1 3263 3065 2.79      
3 A1 1953 1834 1.32      
4 A1 1518 1426 1.49      
5 A1 1402 1316 0.60      
6 A1 1190 1118 0.69      
7 A1 1080 1014 22.71      
8 A1 1015 954 3.29      
9 A1 612 575 0.03      
10 A2 885 831 0.00      
11 A2 846 795 0.00      
12 A2 458 430 0.00      
13 A2 304 285 0.00      
14 B1 880 826 0.70      
15 B1 739 694 98.23      
16 B1 372 349 5.91      
17 B2 3286 3086 15.96      
18 B2 3249 3051 0.43      
19 B2 1514 1422 0.58      
20 B2 1439 1352 9.99      
21 B2 1290 1212 0.01      
22 B2 1133 1064 1.15      
23 B2 874 821 11.28      
24 B2 586 551 11.16      

Unscaled Zero Point Vibrational Energy (zpe) 16586.8 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 15578.3 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/6-31+G**
ABC
0.23292 0.18906 0.10436

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.635 -1.244
C2 0.000 -0.635 -1.244
C3 0.000 1.464 -0.128
C4 0.000 -1.464 -0.128
C5 0.000 0.706 1.058
C6 0.000 -0.706 1.058
H7 0.000 2.545 -0.125
H8 0.000 -2.545 -0.125
H9 0.000 1.227 2.007
H10 0.000 -1.227 2.007

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.26981.39082.37762.30322.66402.21353.37083.30503.7469
C21.26982.37761.39082.66402.30323.37082.21353.74693.3050
C31.39082.37762.92841.40762.47261.08054.00892.14813.4354
C42.37761.39082.92842.47261.40764.00891.08053.43542.1481
C52.30322.66401.40762.47261.41122.18673.45891.08322.1534
C62.66402.30322.47261.40761.41123.45892.18672.15341.0832
H72.21353.37081.08054.00892.18673.45895.08942.50644.3329
H83.37082.21354.00891.08053.45892.18675.08944.33292.5064
H93.30503.74692.14813.43541.08322.15342.50644.33292.4545
H103.74693.30503.43542.14812.15341.08324.33292.50642.4545

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 126.604 C1 C3 C5 110.784
C1 C3 H7 126.747 C2 C1 C3 126.604
C2 C4 C6 110.784 C2 C4 H8 126.747
C3 C5 C6 122.612 C3 C5 H9 118.599
C4 C6 C5 122.612 C4 C6 H10 118.599
C5 C3 H7 122.469 C5 C6 H10 118.789
C6 C4 H8 122.469 C6 C5 H9 118.789
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability