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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: CISD/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 CISD/6-31G
 hartrees
Energy at 0K-229.775626
Energy at 298.15K-229.778917
Nuclear repulsion energy186.608690
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 CISD/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 3304 3098 4.55      
2 A1 3269 3065 7.92      
3 A1 2070 1941 1.70      
4 A1 1542 1446 0.44      
5 A1 1356 1272 0.85      
6 A1 1232 1155 0.01      
7 A1 1084 1017 24.90      
8 A1 1041 976 3.78      
9 A1 659 618 0.24      
10 A2 960 900 0.00      
11 A2 899 843 0.00      
12 A2 599 562 0.00      
13 A2 477 448 0.00      
14 B1 950 891 0.26      
15 B1 782 733 89.30      
16 B1 410 384 6.95      
17 B2 3298 3093 33.09      
18 B2 3250 3048 2.26      
19 B2 1567 1469 11.19      
20 B2 1490 1397 6.46      
21 B2 1323 1240 0.28      
22 B2 1172 1099 0.59      
23 B2 915 858 28.37      
24 B2 550 516 60.43      

Unscaled Zero Point Vibrational Energy (zpe) 17098.6 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 16035.1 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 CISD/6-31G
ABC
0.23153 0.18867 0.10396

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.626 -1.247
C2 0.000 -0.626 -1.247
C3 0.000 1.467 -0.129
C4 0.000 -1.467 -0.129
C5 0.000 0.711 1.062
C6 0.000 -0.711 1.062
H7 0.000 2.549 -0.134
H8 0.000 -2.549 -0.134
H9 0.000 1.231 2.014
H10 0.000 -1.231 2.014

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.25281.39882.37342.31052.66812.22093.36423.31623.7527
C21.25282.37341.39882.66812.31053.36422.22093.75273.3162
C31.39882.37342.93441.41112.48221.08134.01572.15563.4458
C42.37341.39882.93442.48221.41114.01571.08133.44582.1556
C52.31052.66811.41112.48221.42122.19303.47171.08482.1626
C62.66812.31052.48221.41111.42123.47172.19302.16261.0848
H72.22093.36421.08134.01572.19303.47175.09702.51964.3475
H83.36422.22094.01571.08133.47172.19305.09704.34752.5196
H93.31623.75272.15563.44581.08482.16262.51964.34752.4627
H103.75273.31623.44582.15562.16261.08484.34752.51962.4627

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 126.948 C1 C3 C5 110.626
C1 C3 H7 126.670 C2 C1 C3 126.948
C2 C4 C6 110.626 C2 C4 H8 126.670
C3 C5 C6 122.425 C3 C5 H9 118.885
C4 C6 C5 122.425 C4 C6 H10 118.885
C5 C3 H7 122.704 C5 C6 H10 118.689
C6 C4 H8 122.704 C6 C5 H9 118.689
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability