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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: HF/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-259.393480
Energy at 298.15K-259.397480
Nuclear repulsion energy177.537746
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 HF/STO-3G
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 3609 2946 0.00      
2 Ag 2761 2254 0.00      
3 Ag 1769 1444 0.00      
4 Ag 1666 1360 0.00      
5 Ag 1226 1001 0.00      
6 Ag 1103 901 0.00      
7 Ag 579 473 0.00      
8 Ag 262 214 0.00      
9 Au 3724 3040 7.65      
10 Au 1409 1150 0.00      
11 Au 898 733 3.92      
12 Au 456 373 1.57      
13 Au 80 66 14.38      
14 Bg 3715 3033 0.00      
15 Bg 1524 1244 0.00      
16 Bg 1228 1003 0.00      
17 Bg 421 344 0.00      
18 Bu 3611 2948 2.60      
19 Bu 2762 2255 24.53      
20 Bu 1783 1456 5.18      
21 Bu 1520 1241 10.76      
22 Bu 1048 856 14.61      
23 Bu 601 490 0.87      
24 Bu 150 123 16.01      

Unscaled Zero Point Vibrational Energy (zpe) 18952.2 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 15474.4 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 HF/STO-3G
ABC
0.85501 0.04827 0.04648

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.431 0.647 0.000
C2 -0.431 -0.647 0.000
C3 -0.431 1.863 0.000
C4 0.431 -1.863 0.000
N5 1.103 -2.802 0.000
N6 -1.103 2.802 0.000
H7 1.072 0.668 0.882
H8 1.072 0.668 -0.882
H9 -1.072 -0.668 0.882
H10 -1.072 -0.668 -0.882

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.55471.49042.51053.51402.64491.09091.09092.18332.1833
C21.55472.51051.49042.64493.51402.18332.18331.09091.0909
C31.49042.51053.82504.91091.15452.11282.11282.75682.7568
C42.51051.49043.82501.15454.91092.75682.75682.11282.1128
N53.51402.64494.91091.15456.02253.58103.58103.17183.1718
N62.64493.51401.15454.91096.02253.17183.17183.58103.5810
H71.09092.18332.11282.75683.58103.17181.76482.52643.0817
H81.09092.18332.11282.75683.58103.17181.76483.08172.5264
H92.18331.09092.75682.11283.17183.58102.52643.08171.7648
H102.18331.09092.75682.11283.17183.58103.08172.52641.7648

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.048 C1 C2 H9 109.993
C1 C2 H10 109.993 C1 C3 N6 179.691
C2 C1 C3 111.048 C2 C1 H7 109.993
C2 C1 H8 109.993 C2 C4 N5 179.691
C3 C1 H7 108.885 C3 C1 H8 108.885
C4 C2 H9 108.885 C4 C2 H10 108.885
H7 C1 H8 107.968 H9 C2 H10 107.968
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.092      
2 C -0.092      
3 C 0.069      
4 C 0.069      
5 N -0.187      
6 N -0.187      
7 H 0.105      
8 H 0.105      
9 H 0.105      
10 H 0.105      


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 -34.867 10.114 0.000
y 10.114 -51.182 0.000
z 0.000 0.000 -30.649
Traceless
 xyz
x 6.049 10.114 0.000
y 10.114 -18.425 0.000
z 0.000 0.000 12.376
Polar
3z2-r224.752
x2-y216.316
xy10.114
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.332 -1.612 0.000
y -1.612 5.041 0.000
z 0.000 0.000 2.266


<r2> (average value of r2) Å2
<r2> 211.879
(<r2>)1/2 14.556