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All results from a given calculation for C6H4 ((E)-Hexa-1,5-diyne-3-ene)

using model chemistry: B1B95/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1Ag
Energy calculated at B1B95/cc-pVDZ
 hartrees
Energy at 0K-230.792152
Energy at 298.15K-230.793251
Nuclear repulsion energy161.474247
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 B1B95/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3497 3361 0.00      
2 Ag 3184 3061 0.00      
3 Ag 2213 2127 0.00      
4 Ag 1675 1610 0.00      
5 Ag 1299 1249 0.00      
6 Ag 1032 992 0.00      
7 Ag 676 649 0.00      
8 Ag 532 511 0.00      
9 Ag 242 232 0.00      
10 Au 967 930 39.18      
11 Au 649 624 77.24      
12 Au 532 512 4.01      
13 Au 122 118 1.28      
14 Bg 858 825 0.00      
15 Bg 646 621 0.00      
16 Bg 364 350 0.00      
17 Bu 3497 3361 191.91      
18 Bu 3191 3067 7.87      
19 Bu 2236 2149 0.10      
20 Bu 1261 1212 0.94      
21 Bu 1061 1020 15.53      
22 Bu 677 651 78.85      
23 Bu 509 489 12.51      
24 Bu 128 123 1.03      

Unscaled Zero Point Vibrational Energy (zpe) 15523.7 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 14921.4 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 B1B95/cc-pVDZ
ABC
1.52523 0.04855 0.04705

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.564 0.373 0.000
C2 0.564 -0.373 0.000
C3 -0.564 1.788 0.000
C4 0.564 -1.788 0.000
H5 -1.535 -0.126 0.000
H6 1.535 0.126 0.000
C7 -0.564 3.003 0.000
C8 0.564 -3.003 0.000
H9 -0.564 4.075 0.000
H10 0.564 -4.075 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 C7 C8 H9 H10
C11.35101.41602.43721.09252.11332.63063.55883.70214.5877
C21.35102.43721.41602.11331.09253.55882.63064.58773.7021
C31.41602.43723.75032.14742.67731.21474.92242.28625.9704
C42.43721.41603.75032.67732.14744.92241.21475.97042.2862
H51.09252.11332.14742.67733.08123.27703.56114.31204.4715
H62.11331.09252.67732.14743.08123.56113.27704.47154.3120
C72.63063.55881.21474.92243.27703.56116.11111.07157.1670
C83.55882.63064.92241.21473.56113.27706.11117.16701.0715
H93.70214.58772.28625.97044.31204.47151.07157.16708.2268
H104.58773.70215.97042.28624.47154.31207.16701.07158.2268

picture of (E)-Hexa-1,5-diyne-3-ene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 123.467 C1 C2 H6 119.359
C1 C3 C7 180.000 C2 C1 C3 123.467
C2 C1 H5 119.359 C2 C4 C8 180.000
C3 C1 H5 117.174 C3 C7 H9 180.000
C4 C2 H6 117.174 C4 C8 H10 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.052      
2 C -0.052      
3 C 0.475      
4 C 0.475      
5 H 0.039      
6 H 0.039      
7 C -0.458      
8 C -0.458      
9 H -0.005      
10 H -0.005      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.873 0.033 0.000
y 0.033 -23.520 0.000
z 0.000 0.000 -37.234
Traceless
 xyz
x -3.496 0.033 0.000
y 0.033 12.033 0.000
z 0.000 0.000 -8.537
Polar
3z2-r2-17.074
x2-y2-10.353
xy0.033
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.404 -2.929 0.000
y -2.929 20.480 0.000
z 0.000 0.000 3.600


<r2> (average value of r2) Å2
<r2> 217.996
(<r2>)1/2 14.765