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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: PBEPBEultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-263.973154
Energy at 298.15K-263.976918
HF Energy-263.973154
Nuclear repulsion energy177.583535
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 PBEPBEultrafine/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 Ag 3002 2952 0.00      
2 Ag 2289 2251 0.00      
3 Ag 1445 1421 0.00      
4 Ag 1344 1322 0.00      
5 Ag 1008 991 0.00      
6 Ag 954 939 0.00      
7 Ag 504 495 0.00      
8 Ag 215 212 0.00      
9 Au 3059 3009 0.59      
10 Au 1180 1161 0.24      
11 Au 754 741 4.43      
12 Au 397 390 0.00      
13 Au 77 76 19.34      
14 Bg 3041 2991 0.00      
15 Bg 1283 1262 0.00      
16 Bg 1009 992 0.00      
17 Bg 356 351 0.00      
18 Bu 3011 2962 3.01      
19 Bu 2291 2253 6.95      
20 Bu 1451 1427 15.44      
21 Bu 1257 1236 1.58      
22 Bu 930 914 2.19      
23 Bu 514 505 2.11      
24 Bu 126 124 20.00      

Unscaled Zero Point Vibrational Energy (zpe) 15748.4 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 15488.6 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 PBEPBEultrafine/6-31G*
ABC
0.84301 0.04876 0.04691

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.426 0.648 0.000
C2 -0.426 -0.648 0.000
C3 -0.426 1.844 0.000
C4 0.426 -1.844 0.000
N5 1.122 -2.784 0.000
N6 -1.122 2.784 0.000
H7 1.079 0.675 0.888
H8 1.079 0.675 -0.888
H9 -1.079 -0.675 0.888
H10 -1.079 -0.675 -0.888

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.55131.46882.49233.50162.63791.10241.10242.19182.1918
C21.55132.49231.46882.63793.50162.19182.19181.10241.1024
C31.46882.49233.78574.88011.16922.10252.10252.74982.7498
C42.49231.46883.78571.16924.88012.74982.74982.10252.1025
N53.50162.63794.88011.16926.00273.57123.57123.17473.1747
N62.63793.50161.16924.88016.00273.17473.17473.57123.5712
H71.10242.19182.10252.74983.57123.17471.77642.54483.1035
H81.10242.19182.10252.74983.57123.17471.77643.10352.5448
H92.19181.10242.74982.10253.17473.57122.54483.10351.7764
H102.19181.10242.74982.10253.17473.57123.10352.54481.7764

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.193 C1 C2 H9 110.221
C1 C2 H10 110.221 C1 C3 N6 178.941
C2 C1 C3 111.193 C2 C1 H7 110.221
C2 C1 H8 110.221 C2 C4 N5 178.941
C3 C1 H7 108.875 C3 C1 H8 108.875
C4 C2 H9 108.875 C4 C2 H10 108.875
H7 C1 H8 107.357 H9 C2 H10 107.357
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.389      
2 C -0.389      
3 C 0.370      
4 C 0.370      
5 N -0.449      
6 N -0.449      
7 H 0.234      
8 H 0.234      
9 H 0.234      
10 H 0.234      


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 -36.641 11.031 0.000
y 11.031 -54.500 0.000
z 0.000 0.000 -32.460
Traceless
 xyz
x 6.839 11.031 0.000
y 11.031 -19.949 0.000
z 0.000 0.000 13.110
Polar
3z2-r226.220
x2-y217.858
xy11.031
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.531 -2.542 0.000
y -2.542 9.654 0.000
z 0.000 0.000 4.711


<r2> (average value of r2) Å2
<r2> 211.750
(<r2>)1/2 14.552