return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: B1B95/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-264.209807
Energy at 298.15K-264.213701
Nuclear repulsion energy178.946810
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/cc-pVDZ
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 3086 2966 0.00      
2 Ag 2388 2296 0.00      
3 Ag 1437 1381 0.00      
4 Ag 1372 1319 0.00      
5 Ag 1054 1013 0.00      
6 Ag 979 941 0.00      
7 Ag 520 500 0.00      
8 Ag 223 215 0.00      
9 Au 3151 3028 0.01      
10 Au 1190 1143 0.00      
11 Au 764 734 3.75      
12 Au 408 392 0.00      
13 Au 80 76 19.24      
14 Bg 3132 3011 0.00      
15 Bg 1297 1247 0.00      
16 Bg 1015 976 0.00      
17 Bg 367 353 0.00      
18 Bu 3094 2973 1.79      
19 Bu 2390 2297 10.96      
20 Bu 1443 1387 15.54      
21 Bu 1265 1215 3.21      
22 Bu 956 919 3.85      
23 Bu 527 507 1.38      
24 Bu 129 124 19.88      

Unscaled Zero Point Vibrational Energy (zpe) 16132.7 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 15506.7 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/cc-pVDZ
ABC
0.86023 0.04943 0.04757

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.421 0.642 0.000
C2 -0.421 -0.642 0.000
C3 -0.421 1.833 0.000
C4 0.421 -1.833 0.000
N5 1.106 -2.768 0.000
N6 -1.106 2.768 0.000
H7 1.073 0.671 0.884
H8 1.073 0.671 -0.884
H9 -1.073 -0.671 0.884
H10 -1.073 -0.671 -0.884

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.53681.45842.47503.47862.61771.09891.09892.17762.1776
C21.53682.47501.45842.61773.47862.17762.17761.09891.0989
C31.45842.47503.76084.84771.15942.08912.08912.73432.7343
C42.47501.45843.76081.15944.84772.73432.73432.08912.0891
N53.47862.61774.84771.15945.96193.55143.55143.15093.1509
N62.61773.47861.15944.84775.96193.15093.15093.55143.5514
H71.09892.17762.08912.73433.55143.15091.76882.53153.0882
H81.09892.17762.08912.73433.55143.15091.76883.08822.5315
H92.17761.09892.73432.08913.15093.55142.53153.08821.7688
H102.17761.09892.73432.08913.15093.55143.08822.53151.7688

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.421 C1 C2 H9 110.317
C1 C2 H10 110.317 C1 C3 N6 179.100
C2 C1 C3 111.421 C2 C1 H7 110.317
C2 C1 H8 110.317 C2 C4 N5 179.100
C3 C1 H7 108.740 C3 C1 H8 108.740
C4 C2 H9 108.740 C4 C2 H10 108.740
H7 C1 H8 107.188 H9 C2 H10 107.188
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.004      
2 C 0.004      
3 C -0.097      
4 C -0.097      
5 N -0.106      
6 N -0.106      
7 H 0.099      
8 H 0.099      
9 H 0.099      
10 H 0.099      


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 -36.550 10.733 0.000
y 10.733 -54.324 0.000
z 0.000 0.000 -32.555
Traceless
 xyz
x 6.890 10.733 0.000
y 10.733 -19.771 0.000
z 0.000 0.000 12.882
Polar
3z2-r225.763
x2-y217.774
xy10.733
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.499 -2.206 0.000
y -2.206 9.328 0.000
z 0.000 0.000 4.829


<r2> (average value of r2) Å2
<r2> 209.155
(<r2>)1/2 14.462