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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: MP2/STO-3G

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/STO-3G
 hartrees
Energy at 0K-226.953592
Energy at 298.15K-226.956762
Nuclear repulsion energy183.802204
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/STO-3G
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 3521 3070 0.80      
2 A1 3506 3057 7.85      
3 A1 1923 1677 22.03      
4 A1 1562 1362 1.35      
5 A1 1417 1235 0.00      
6 A1 1236 1078 0.72      
7 A1 1065 929 2.03      
8 A1 1029 898 1.98      
9 A1 635 554 0.07      
10 A2 1055 920 0.00      
11 A2 943 822 0.00      
12 A2 806 702 0.00      
13 A2 511 445 0.00      
14 B1 1007 878 0.06      
15 B1 791 689 18.77      
16 B1 421 367 1.11      
17 B2 3515 3065 3.65      
18 B2 3499 3051 0.14      
19 B2 1642 1432 0.96      
20 B2 1502 1310 24.78      
21 B2 1322 1152 10.79      
22 B2 1197 1044 2.81      
23 B2 1023 892 1.50      
24 B2 691 603 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 17909.2 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 15615.0 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 MP2/STO-3G
ABC
0.22429 0.18337 0.10089

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.641 -1.275
C2 0.000 -0.641 -1.275
C3 0.000 1.483 -0.119
C4 0.000 -1.483 -0.119
C5 0.000 0.726 1.072
C6 0.000 -0.726 1.072
H7 0.000 2.586 -0.115
H8 0.000 -2.586 -0.115
H9 0.000 1.249 2.042
H10 0.000 -1.249 2.042

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.28111.43072.41812.34832.71582.26493.42863.37243.8175
C21.28112.41811.43072.71582.34833.42862.26493.81753.3724
C31.43072.41812.96661.41082.51001.10254.06902.17363.4835
C42.41811.43072.96662.51001.41084.06901.10253.48352.1736
C52.34832.71581.41082.51001.45272.20573.51821.10212.2007
C62.71582.34832.51001.41081.45273.51822.20572.20071.1021
H72.26493.42861.10254.06902.20573.51825.17152.53754.3996
H83.42862.26494.06901.10253.51822.20575.17154.39962.5375
H93.37243.81752.17363.48351.10212.20072.53754.39962.4979
H103.81753.37243.48352.17362.20071.10214.39962.53752.4979

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 126.088 C1 C3 C5 111.465
C1 C3 H7 126.298 C2 C1 C3 126.088
C2 C4 C6 111.465 C2 C4 H8 126.298
C3 C5 C6 122.447 C3 C5 H9 119.246
C4 C6 C5 122.447 C4 C6 H10 119.246
C5 C3 H7 122.237 C5 C6 H10 118.307
C6 C4 H8 122.237 C6 C5 H9 118.307
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability