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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-264.251266
Energy at 298.15K-264.255183
Nuclear repulsion energy179.743298
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 B1B95/6-311G*
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 3083 2955 0.00      
2 Ag 2386 2287 0.00      
3 Ag 1478 1417 0.00      
4 Ag 1392 1334 0.00      
5 Ag 1047 1003 0.00      
6 Ag 982 941 0.00      
7 Ag 524 502 0.00      
8 Ag 226 216 0.00      
9 Au 3141 3011 1.22      
10 Au 1225 1174 0.13      
11 Au 769 737 3.93      
12 Au 411 394 0.01      
13 Au 79 76 20.94      
14 Bg 3121 2992 0.00      
15 Bg 1329 1274 0.00      
16 Bg 1037 994 0.00      
17 Bg 371 356 0.00      
18 Bu 3092 2964 3.76      
19 Bu 2388 2289 9.92      
20 Bu 1486 1425 18.47      
21 Bu 1297 1243 1.46      
22 Bu 952 913 4.91      
23 Bu 536 514 1.29      
24 Bu 131 125 21.93      

Unscaled Zero Point Vibrational Energy (zpe) 16240.8 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 15568.4 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 B1B95/6-311G*
ABC
0.86205 0.04988 0.04798

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.422 0.643 0.000
C2 -0.422 -0.643 0.000
C3 -0.422 1.827 0.000
C4 0.422 -1.827 0.000
N5 1.106 -2.752 0.000
N6 -1.106 2.752 0.000
H7 1.071 0.669 0.877
H8 1.071 0.669 -0.877
H9 -1.071 -0.669 0.877
H10 -1.071 -0.669 -0.877

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.53741.45382.46933.46312.60461.09141.09142.17192.1719
C21.53742.46931.45382.60463.46312.17192.17191.09141.0914
C31.45382.46933.74954.82701.15092.08262.08262.72372.7237
C42.46931.45383.74951.15094.82702.72372.72372.08262.0826
N53.46312.60464.82701.15095.93213.53203.53203.13793.1379
N62.60463.46311.15094.82705.93213.13793.13793.53203.5320
H71.09142.17192.08262.72373.53203.13791.75452.52483.0746
H81.09142.17192.08262.72373.53203.13791.75453.07462.5248
H92.17191.09142.72372.08263.13793.53202.52483.07461.7545
H102.17191.09142.72372.08263.13793.53203.07462.52481.7545

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.252 C1 C2 H9 110.264
C1 C2 H10 110.264 C1 C3 N6 179.000
C2 C1 C3 111.252 C2 C1 H7 110.264
C2 C1 H8 110.264 C2 C4 N5 179.000
C3 C1 H7 108.984 C3 C1 H8 108.984
C4 C2 H9 108.984 C4 C2 H10 108.984
H7 C1 H8 106.982 H9 C2 H10 106.982
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.489      
2 C -0.489      
3 C 0.143      
4 C 0.143      
5 N -0.238      
6 N -0.238      
7 H 0.292      
8 H 0.292      
9 H 0.292      
10 H 0.292      


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 -37.074 11.265 0.000
y 11.265 -55.367 0.000
z 0.000 0.000 -32.742
Traceless
 xyz
x 6.980 11.265 0.000
y 11.265 -20.459 0.000
z 0.000 0.000 13.479
Polar
3z2-r226.957
x2-y218.293
xy11.265
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.637 -2.268 0.000
y -2.268 9.440 0.000
z 0.000 0.000 4.882


<r2> (average value of r2) Å2
<r2> 208.002
(<r2>)1/2 14.422