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All results from a given calculation for C6H4 ((Z)-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 C2V 1A1
Energy calculated at B1B95/cc-pVDZ
 hartrees
Energy at 0K-230.791085
Energy at 298.15K-230.792328
Nuclear repulsion energy165.706120
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 A1 3492 3356 73.87      
2 A1 3199 3075 5.76      
3 A1 2214 2128 3.21      
4 A1 1667 1602 3.93      
5 A1 1219 1172 0.14      
6 A1 911 875 3.56      
7 A1 669 643 22.06      
8 A1 437 420 5.49      
9 A1 101 97 0.18      
10 A2 967 929 0.00      
11 A2 649 623 0.00      
12 A2 593 570 0.00      
13 A2 225 216 0.00      
14 B1 769 739 19.00      
15 B1 653 627 75.36      
16 B1 359 345 17.39      
17 B2 3491 3356 76.62      
18 B2 3182 3058 2.46      
19 B2 2233 2146 0.05      
20 B2 1398 1343 2.13      
21 B2 1041 1001 13.69      
22 B2 731 703 5.79      
23 B2 666 640 45.68      
24 B2 246 237 4.65      

Unscaled Zero Point Vibrational Energy (zpe) 15555.5 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 14951.9 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
0.24023 0.08342 0.06192

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.676 1.087
C2 0.000 -0.676 1.087
C3 0.000 1.489 -0.071
C4 0.000 -1.489 -0.071
H5 0.000 1.194 2.049
H6 0.000 -1.194 2.049
C7 0.000 2.223 -1.040
C8 0.000 -2.223 -1.040
H9 0.000 2.856 -1.904
H10 0.000 -2.856 -1.904

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 C7 C8 H9 H10
C11.35181.41552.45571.09242.10282.62953.59493.70094.6278
C21.35182.45571.41552.10281.09243.59492.62954.62783.7009
C31.41552.45572.97902.14043.41991.21443.83632.28584.7158
C42.45571.41552.97903.41992.14043.83631.21444.71582.2858
H51.09242.10282.14043.41992.38813.25494.60554.28765.6588
H62.10281.09243.41992.14042.38814.60553.25495.65884.2876
C72.62953.59491.21443.83633.25494.60554.44541.07145.1514
C83.59492.62953.83631.21444.60553.25494.44545.15141.0714
H93.70094.62782.28584.71584.28765.65881.07145.15145.7113
H104.62783.70094.71582.28585.65884.28765.15141.07145.7113

picture of (Z)-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 125.085 C1 C2 H6 118.315
C1 C3 C7 177.948 C2 C1 C3 125.085
C2 C1 H5 118.315 C2 C4 C8 177.948
C3 C1 H5 116.600 C3 C7 H9 179.075
C4 C2 H6 116.600 C4 C8 H10 179.075
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 -0.068      
2 C -0.068      
3 C 0.505      
4 C 0.505      
5 H 0.037      
6 H 0.037      
7 C -0.468      
8 C -0.468      
9 H -0.006      
10 H -0.006      


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 0.099 0.099
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.230 0.000 0.000
y 0.000 -30.218 0.000
z 0.000 0.000 -26.594
Traceless
 xyz
x -8.824 0.000 0.000
y 0.000 1.694 0.000
z 0.000 0.000 7.130
Polar
3z2-r214.260
x2-y2-7.012
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.585 0.000 0.000
y 0.000 14.116 0.000
z 0.000 0.000 10.120


<r2> (average value of r2) Å2
<r2> 172.976
(<r2>)1/2 13.152