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

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-230.720052
Energy at 298.15K-230.720933
HF Energy-230.720052
Nuclear repulsion energy 
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 B97D3/6-31G*
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 3445 3377 51.16      
2 A1 3120 3059 21.40      
3 A1 2148 2106 3.00      
4 A1 1594 1563 5.15      
5 A1 1230 1206 0.06      
6 A1 892 875 3.40      
7 A1 580 569 25.65      
8 A1 429 421 2.34      
9 A1 103 101 0.10      
10 A2 915 897 0.00      
11 A2 593 582 0.00      
12 A2 496 487 0.00      
13 A2 222 218 0.00      
14 B1 750 735 20.93      
15 B1 530 519 105.70      
16 B1 359 352 5.02      
17 B2 3445 3377 51.76      
18 B2 3104 3044 0.07      
19 B2 2169 2126 0.05      
20 B2 1405 1378 1.61      
21 B2 1035 1014 13.47      
22 B2 729 715 4.91      
23 B2 572 561 59.25      
24 B2 244 240 2.33      

Unscaled Zero Point Vibrational Energy (zpe) 15053.7 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 14758.6 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 B97D3/6-31G*
ABC
0.23888 0.08289 0.06154

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.683 1.089
C2 0.000 -0.683 1.089
C3 0.000 1.493 -0.070
C4 0.000 -1.493 -0.070
H5 0.000 1.197 2.054
H6 0.000 -1.197 2.054
C7 0.000 2.230 -1.043
C8 0.000 -2.230 -1.043
H9 0.000 2.852 -1.914
H10 0.000 -2.852 -1.914

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 C7 C8 H9 H10
C11.36561.41442.46551.09312.11302.63443.60993.70454.6382
C21.36562.46551.41442.11301.09313.60992.63444.63823.7045
C31.41442.46552.98652.14423.42761.22053.84852.29044.7203
C42.46551.41442.98653.42762.14423.84851.22054.72032.2904
H51.09312.11302.14423.42762.39443.26434.61914.29875.6690
H62.11301.09313.42762.14422.39444.61913.26435.66904.2987
C72.63443.60991.22053.84853.26434.61914.46061.07015.1565
C83.60992.63443.84851.22054.61913.26434.46065.15651.0701
H93.70454.63822.29044.72034.29875.66901.07015.15655.7043
H104.63823.70454.72032.29045.66904.29875.15651.07015.7043

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 123.670 C1 C2 H6 119.019
C1 C3 C7 178.752 C2 C1 C3 123.670
C2 C1 H5 119.019 C2 C4 C8 178.752
C3 C1 H5 117.311 C3 C7 H9 178.241
C4 C2 H6 117.311 C4 C8 H10 178.241
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.260      
2 C -0.260      
3 C 0.406      
4 C 0.406      
5 H 0.171      
6 H 0.171      
7 C -0.520      
8 C -0.520      
9 H 0.203      
10 H 0.203      


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 0.026 0.026
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.577 0.000 0.000
y 0.000 -29.796 0.000
z 0.000 0.000 -26.277
Traceless
 xyz
x -8.540 0.000 0.000
y 0.000 1.631 0.000
z 0.000 0.000 6.909
Polar
3z2-r213.818
x2-y2-6.781
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.091 0.000 0.000
y 0.000 14.212 0.000
z 0.000 0.000 9.947


<r2> (average value of r2) Å2
<r2> 173.572
(<r2>)1/2 13.175