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All results from a given calculation for C6H4 (Benzyne)

using model chemistry: LSDA/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 LSDA/cc-pVTZ
 hartrees
Energy at 0K-229.650767
Energy at 298.15K-229.653819
Nuclear repulsion energy188.799460
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 LSDA/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 3127 3093 4.30      
2 A1 3107 3073 0.03      
3 A1 2001 1980 0.01      
4 A1 1470 1454 1.35      
5 A1 1315 1301 0.92      
6 A1 1119 1106 0.16      
7 A1 1089 1077 19.54      
8 A1 992 981 11.15      
9 A1 608 602 0.22      
10 A2 943 933 0.00      
11 A2 841 832 0.00      
12 A2 610 603 0.00      
13 A2 463 458 0.00      
14 B1 891 882 0.04      
15 B1 721 713 81.35      
16 B1 381 377 6.32      
17 B2 3124 3090 12.00      
18 B2 3093 3059 0.03      
19 B2 1453 1437 5.90      
20 B2 1408 1393 11.24      
21 B2 1227 1214 0.80      
22 B2 1079 1067 2.67      
23 B2 827 818 31.49      
24 B2 448 443 99.23      

Unscaled Zero Point Vibrational Energy (zpe) 16168.3 cm-1
Scaled (by 0.9891) Zero Point Vibrational Energy (zpe) 15992.0 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 LSDA/cc-pVTZ
ABC
0.23908 0.19241 0.10661

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.623 -1.223
C2 0.000 -0.623 -1.223
C3 0.000 1.453 -0.135
C4 0.000 -1.453 -0.135
C5 0.000 0.695 1.045
C6 0.000 -0.695 1.045
H7 0.000 2.544 -0.128
H8 0.000 -2.544 -0.128
H9 0.000 1.224 2.003
H10 0.000 -1.224 2.003

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10
C11.24561.36882.34372.26982.62362.21083.35023.28133.7168
C21.24562.34371.36882.62362.26983.35022.21083.71683.2813
C31.36882.34372.90561.40262.45071.09073.99632.14973.4251
C42.34371.36882.90562.45071.40263.99631.09073.42512.1497
C52.26982.62361.40262.45071.39002.18973.44471.09342.1441
C62.62362.26982.45071.40261.39003.44472.18972.14411.0934
H72.21083.35021.09073.99632.18973.44475.08702.50674.3280
H83.35022.21083.99631.09073.44472.18975.08704.32802.5067
H93.28133.71682.14973.42511.09342.14412.50674.32802.4470
H103.71683.28133.42512.14972.14411.09344.32802.50672.4470

picture of Benzyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 127.330 C1 C3 C5 109.965
C1 C3 H7 127.664 C2 C1 C3 127.330
C2 C4 C6 109.965 C2 C4 H8 127.664
C3 C5 C6 122.705 C3 C5 H9 118.390
C4 C6 C5 122.705 C4 C6 H10 118.390
C5 C3 H7 122.371 C5 C6 H10 118.905
C6 C4 H8 122.371 C6 C5 H9 118.905
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.011      
2 C 0.011      
3 C -0.150      
4 C -0.150      
5 C -0.111      
6 C -0.111      
7 H 0.127      
8 H 0.127      
9 H 0.123      
10 H 0.123      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.666 1.666
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.646 0.000 0.000
y 0.000 -29.259 0.000
z 0.000 0.000 -34.577
Traceless
 xyz
x -5.727 0.000 0.000
y 0.000 6.852 0.000
z 0.000 0.000 -1.125
Polar
3z2-r2-2.250
x2-y2-8.386
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.739 0.000 0.000
y 0.000 12.132 0.000
z 0.000 0.000 10.342


<r2> (average value of r2) Å2
<r2> 112.181
(<r2>)1/2 10.592