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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: B3PW91/aug-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 B3PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-264.224051
Energy at 298.15K-264.227910
Nuclear repulsion energy178.668951
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 B3PW91/aug-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 3072 2963 0.00      
2 Ag 2360 2276 0.00      
3 Ag 1441 1390 0.00      
4 Ag 1363 1315 0.00      
5 Ag 1042 1005 0.00      
6 Ag 973 938 0.00      
7 Ag 515 497 0.00      
8 Ag 221 213 0.00      
9 Au 3136 3025 0.08      
10 Au 1191 1149 0.00      
11 Au 759 732 3.09      
12 Au 393 379 0.16      
13 Au 77 74 22.82      
14 Bg 3118 3007 0.00      
15 Bg 1296 1250 0.00      
16 Bg 1017 981 0.00      
17 Bg 358 345 0.00      
18 Bu 3081 2972 1.57      
19 Bu 2361 2278 13.14      
20 Bu 1447 1396 16.75      
21 Bu 1262 1218 2.61      
22 Bu 946 912 3.40      
23 Bu 523 505 1.08      
24 Bu 130 125 23.80      

Unscaled Zero Point Vibrational Energy (zpe) 16040.0 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 15472.2 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 B3PW91/aug-cc-pVDZ
ABC
0.85528 0.04928 0.04742

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.423 0.645 0.000
C2 -0.423 -0.645 0.000
C3 -0.423 1.836 0.000
C4 0.423 -1.836 0.000
N5 1.111 -2.771 0.000
N6 -1.111 2.771 0.000
H7 1.073 0.673 0.885
H8 1.073 0.673 -0.885
H9 -1.073 -0.673 0.885
H10 -1.073 -0.673 -0.885

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.54261.46142.48033.48382.62181.09841.09842.18172.1817
C21.54262.48031.46142.62183.48382.18172.18171.09841.0984
C31.46142.48033.76774.85511.16052.09162.09162.73862.7386
C42.48031.46143.76771.16054.85512.73862.73862.09162.0916
N53.48382.62184.85511.16055.97013.55603.55603.15473.1547
N62.62183.48381.16054.85515.97013.15473.15473.55603.5560
H71.09842.18172.09162.73863.55603.15471.77062.53343.0908
H81.09842.18172.09162.73863.55603.15471.77063.09082.5334
H92.18171.09842.73862.09163.15473.55602.53343.09081.7706
H102.18171.09842.73862.09163.15473.55603.09082.53341.7706

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.282 C1 C2 H9 110.265
C1 C2 H10 110.265 C1 C3 N6 179.098
C2 C1 C3 111.282 C2 C1 H7 110.265
C2 C1 H8 110.265 C2 C4 N5 179.098
C3 C1 H7 108.756 C3 C1 H8 108.756
C4 C2 H9 108.756 C4 C2 H10 108.756
H7 C1 H8 107.414 H9 C2 H10 107.414
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.671      
2 C 0.671      
3 C -0.087      
4 C -0.087      
5 N -0.266      
6 N -0.266      
7 H -0.159      
8 H -0.159      
9 H -0.159      
10 H -0.159      


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 -37.596 11.862 0.000
y 11.862 -56.760 0.000
z 0.000 0.000 -33.034
Traceless
 xyz
x 7.301 11.862 0.000
y 11.862 -21.445 0.000
z 0.000 0.000 14.144
Polar
3z2-r228.289
x2-y219.164
xy11.862
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.815 -2.250 0.000
y -2.250 10.969 0.000
z 0.000 0.000 6.166


<r2> (average value of r2) Å2
<r2> 210.548
(<r2>)1/2 14.510