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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: B3LYP/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 B3LYP/6-31G
 hartrees
Energy at 0K-264.218969
Energy at 298.15K-264.222853
Nuclear repulsion energy177.700476
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 B3LYP/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 3065 2948 0.00      
2 Ag 2321 2233 0.00      
3 Ag 1521 1464 0.00      
4 Ag 1406 1353 0.00      
5 Ag 1028 989 0.00      
6 Ag 978 940 0.00      
7 Ag 511 491 0.00      
8 Ag 224 216 0.00      
9 Au 3124 3005 2.64      
10 Au 1246 1199 0.01      
11 Au 799 769 3.78      
12 Au 399 384 0.19      
13 Au 77 75 20.52      
14 Bg 3103 2985 0.00      
15 Bg 1340 1289 0.00      
16 Bg 1075 1034 0.00      
17 Bg 358 344 0.00      
18 Bu 3074 2958 5.61      
19 Bu 2324 2235 8.36      
20 Bu 1526 1468 20.92      
21 Bu 1342 1291 0.92      
22 Bu 945 909 7.18      
23 Bu 522 502 4.30      
24 Bu 133 128 19.81      

Unscaled Zero Point Vibrational Energy (zpe) 16220.0 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 15603.6 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 B3LYP/6-31G
ABC
0.85131 0.04866 0.04683

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.779 0.000
C2 0.000 -0.779 0.000
C3 -1.360 1.317 0.000
C4 1.360 -1.317 0.000
N5 2.455 -1.733 0.000
N6 -2.455 1.733 0.000
H7 0.537 1.149 0.881
H8 0.537 1.149 -0.881
H9 -0.537 -1.149 0.881
H10 -0.537 -1.149 -0.881

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.55721.46262.49793.51222.63421.09641.09642.18652.1865
C21.55722.49791.46262.63423.51222.18652.18651.09641.0964
C31.46262.49793.78594.88431.17172.09872.09872.74452.7445
C42.49791.46263.78591.17174.88432.74452.74452.09872.0987
N53.51222.63424.88431.17176.01043.57203.57203.17393.1739
N62.63423.51221.17174.88436.01043.17393.17393.57203.5720
H71.09642.18652.09872.74453.57203.17391.76172.53723.0888
H81.09642.18652.09872.74453.57203.17391.76173.08882.5372
H92.18651.09642.74452.09873.17393.57202.53723.08881.7617
H102.18651.09642.74452.09873.17393.57203.08882.53721.7617

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.581 C1 C2 H9 109.753
C1 C2 H10 109.753 C1 C3 N6 179.221
C2 C1 C3 111.581 C2 C1 H7 109.753
C2 C1 H8 109.753 C2 C4 N5 179.221
C3 C1 H7 109.362 C3 C1 H8 109.362
C4 C2 H9 109.362 C4 C2 H10 109.362
H7 C1 H8 106.916 H9 C2 H10 106.916
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.300      
2 C -0.300      
3 C 0.121      
4 C 0.121      
5 N -0.250      
6 N -0.250      
7 H 0.214      
8 H 0.214      
9 H 0.214      
10 H 0.214      


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 -53.811 13.516 0.000
y 13.516 -39.854 0.000
z 0.000 0.000 -32.738
Traceless
 xyz
x -17.515 13.516 0.000
y 13.516 3.420 0.000
z 0.000 0.000 14.094
Polar
3z2-r228.188
x2-y2-13.957
xy13.516
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.311 -2.336 0.000
y -2.336 5.983 0.000
z 0.000 0.000 4.449


<r2> (average value of r2) Å2
<r2> 212.566
(<r2>)1/2 14.580