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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: B3LYP/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 B3LYP/cc-pVDZ
 hartrees
Energy at 0K-264.316657
Energy at 298.15K-264.320542
Nuclear repulsion energy178.191380
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/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 3057 2965 0.00      
2 Ag 2365 2294 0.00      
3 Ag 1443 1400 0.00      
4 Ag 1373 1332 0.00      
5 Ag 1031 1000 0.00      
6 Ag 970 941 0.00      
7 Ag 514 499 0.00      
8 Ag 225 218 0.00      
9 Au 3114 3021 0.69      
10 Au 1196 1160 0.00      
11 Au 769 746 3.08      
12 Au 405 393 0.00      
13 Au 79 77 19.04      
14 Bg 3096 3003 0.00      
15 Bg 1301 1262 0.00      
16 Bg 1024 993 0.00      
17 Bg 364 353 0.00      
18 Bu 3064 2972 3.08      
19 Bu 2367 2296 8.28      
20 Bu 1450 1407 13.29      
21 Bu 1276 1238 4.04      
22 Bu 939 911 4.79      
23 Bu 526 510 1.39      
24 Bu 131 127 19.61      

Unscaled Zero Point Vibrational Energy (zpe) 16040.0 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 15558.8 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/cc-pVDZ
ABC
0.85300 0.04895 0.04711

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.774 0.000
C2 0.000 -0.774 0.000
C3 -1.364 1.311 0.000
C4 1.364 -1.311 0.000
N5 2.451 -1.720 0.000
N6 -2.451 1.720 0.000
H7 0.532 1.154 0.887
H8 0.532 1.154 -0.887
H9 -0.532 -1.154 0.887
H10 -0.532 -1.154 -0.887

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.54761.46602.49133.49642.62711.10161.10162.18782.1878
C21.54762.49131.46602.62713.49642.18782.18781.10161.1016
C31.46602.49133.78374.87231.16122.09882.09882.74882.7488
C42.49131.46603.78371.16124.87232.74882.74882.09882.0988
N53.49642.62714.87231.16125.98823.56783.56783.16273.1627
N62.62713.49641.16124.87235.98823.16273.16273.56783.5678
H71.10162.18782.09882.74883.56783.16271.77312.54193.0992
H81.10162.18782.09882.74883.56783.16271.77313.09922.5419
H92.18781.10162.74882.09883.16273.56782.54193.09921.7731
H102.18781.10162.74882.09883.16273.56783.09922.54191.7731

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.493 C1 C2 H9 110.208
C1 C2 H10 110.208 C1 C3 N6 179.122
C2 C1 C3 111.493 C2 C1 H7 110.208
C2 C1 H8 110.208 C2 C4 N5 179.122
C3 C1 H7 108.823 C3 C1 H8 108.823
C4 C2 H9 108.823 C4 C2 H10 108.823
H7 C1 H8 107.171 H9 C2 H10 107.171
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.039      
2 C 0.039      
3 C -0.123      
4 C -0.123      
5 N -0.084      
6 N -0.084      
7 H 0.084      
8 H 0.084      
9 H 0.084      
10 H 0.084      


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 -52.051 12.500 0.000
y 12.500 -39.395 0.000
z 0.000 0.000 -32.752
Traceless
 xyz
x -15.978 12.500 0.000
y 12.500 3.007 0.000
z 0.000 0.000 12.971
Polar
3z2-r225.942
x2-y2-12.657
xy12.500
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.390 -2.186 0.000
y -2.186 6.497 0.000
z 0.000 0.000 4.864


<r2> (average value of r2) Å2
<r2> 211.101
(<r2>)1/2 14.529