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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: B3LYP/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-44.697160
Energy at 298.15K-44.700992
Nuclear repulsion energy90.303541
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/CEP-121G
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 3031 2954 0.00      
2 Ag 2242 2185 0.00      
3 Ag 1501 1463 0.00      
4 Ag 1386 1350 0.00      
5 Ag 1025 999 0.00      
6 Ag 954 930 0.00      
7 Ag 498 485 0.00      
8 Ag 220 214 0.00      
9 Au 3100 3021 8.31      
10 Au 1223 1192 0.12      
11 Au 783 763 2.94      
12 Au 386 376 1.17      
13 Au 74 72 21.50      
14 Bg 3077 2999 0.00      
15 Bg 1318 1284 0.00      
16 Bg 1055 1028 0.00      
17 Bg 348 339 0.00      
18 Bu 3038 2961 12.06      
19 Bu 2244 2187 7.37      
20 Bu 1508 1469 24.48      
21 Bu 1313 1280 0.35      
22 Bu 913 889 12.12      
23 Bu 509 496 6.32      
24 Bu 129 126 19.59      

Unscaled Zero Point Vibrational Energy (zpe) 15936.2 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 15529.8 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/CEP-121G
ABC
0.83754 0.04779 0.04599

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.783 0.000
C2 0.000 -0.783 0.000
C3 -1.383 1.317 0.000
C4 1.383 -1.317 0.000
N5 2.492 -1.730 0.000
N6 -2.492 1.730 0.000
H7 0.529 1.161 0.883
H8 0.529 1.161 -0.883
H9 -0.529 -1.161 0.883
H10 -0.529 -1.161 -0.883

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.56661.48282.51523.53902.66561.09671.09672.19982.1998
C21.56662.51521.48282.66563.53902.19982.19981.09671.0967
C31.48282.51523.82054.92971.18282.11242.11242.76602.7660
C42.51521.48283.82051.18284.92972.76602.76602.11242.1124
N53.53902.66564.92971.18286.06683.60373.60373.19863.1986
N62.66563.53901.18284.92976.06683.19863.19863.60373.6037
H71.09672.19982.11242.76603.60373.19861.76692.55103.1032
H81.09672.19982.11242.76603.60373.19861.76693.10322.5510
H92.19981.09672.76602.11243.19863.60372.55103.10321.7669
H102.19981.09672.76602.11243.19863.60373.10322.55101.7669

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.112 C1 C2 H9 110.124
C1 C2 H10 110.124 C1 C3 N6 179.281
C2 C1 C3 111.112 C2 C1 H7 110.124
C2 C1 H8 110.124 C2 C4 N5 179.281
C3 C1 H7 109.033 C3 C1 H8 109.033
C4 C2 H9 109.033 C4 C2 H10 109.033
H7 C1 H8 107.327 H9 C2 H10 107.327
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.318      
2 C -0.318      
3 C -0.368      
4 C -0.368      
5 N 0.266      
6 N 0.266      
7 H 0.210      
8 H 0.210      
9 H 0.210      
10 H 0.210      


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 -55.118 13.912 0.000
y 13.912 -40.507 0.000
z 0.000 0.000 -33.192
Traceless
 xyz
x -18.268 13.912 0.000
y 13.912 3.648 0.000
z 0.000 0.000 14.620
Polar
3z2-r229.240
x2-y2-14.611
xy13.912
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.005 -2.342 0.000
y -2.342 6.622 0.000
z 0.000 0.000 5.012


<r2> (average value of r2) Å2
<r2> 162.563
(<r2>)1/2 12.750