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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: B3PW91/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/cc-pVDZ
 hartrees
Energy at 0K-264.210161
Energy at 298.15K-264.214064
Nuclear repulsion energy178.552333
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/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 3070 2963 0.00      
2 Ag 2375 2292 0.00      
3 Ag 1439 1389 0.00      
4 Ag 1373 1325 0.00      
5 Ag 1047 1011 0.00      
6 Ag 977 943 0.00      
7 Ag 519 501 0.00      
8 Ag 225 217 0.00      
9 Au 3135 3025 0.02      
10 Au 1192 1151 0.00      
11 Au 767 740 3.96      
12 Au 408 393 0.00      
13 Au 80 77 19.50      
14 Bg 3117 3008 0.00      
15 Bg 1299 1253 0.00      
16 Bg 1018 982 0.00      
17 Bg 367 354 0.00      
18 Bu 3078 2971 1.93      
19 Bu 2376 2293 11.13      
20 Bu 1445 1394 16.23      
21 Bu 1269 1224 2.91      
22 Bu 952 919 3.81      
23 Bu 529 511 1.48      
24 Bu 131 127 20.09      

Unscaled Zero Point Vibrational Energy (zpe) 16093.5 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 15530.3 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/cc-pVDZ
ABC
0.85718 0.04919 0.04734

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.771 0.000
C2 0.000 -0.771 0.000
C3 -1.359 1.306 0.000
C4 1.359 -1.306 0.000
N5 2.446 -1.716 0.000
N6 -2.446 1.716 0.000
H7 0.531 1.153 0.886
H8 0.531 1.153 -0.886
H9 -0.531 -1.153 0.886
H10 -0.531 -1.153 -0.886

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.54151.46102.48223.48812.62231.10131.10132.18342.1834
C21.54152.48221.46102.62233.48812.18342.18341.10131.1013
C31.46102.48223.77034.85941.16142.09312.09312.74202.7420
C42.48221.46103.77031.16144.85942.74202.74202.09312.0931
N53.48812.62234.85941.16145.97583.56143.56143.15653.1565
N62.62233.48811.16144.85945.97583.15653.15653.56143.5614
H71.10132.18342.09312.74203.56143.15651.77212.53843.0958
H81.10132.18342.09312.74203.56143.15651.77213.09582.5384
H92.18341.10132.74202.09313.15653.56142.53843.09581.7721
H102.18341.10132.74202.09313.15653.56143.09582.53841.7721

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.494 C1 C2 H9 110.305
C1 C2 H10 110.305 C1 C3 N6 179.166
C2 C1 C3 111.494 C2 C1 H7 110.305
C2 C1 H8 110.305 C2 C4 N5 179.166
C3 C1 H7 108.738 C3 C1 H8 108.738
C4 C2 H9 108.738 C4 C2 H10 108.738
H7 C1 H8 107.138 H9 C2 H10 107.138
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.020      
2 C -0.020      
3 C -0.081      
4 C -0.081      
5 N -0.120      
6 N -0.120      
7 H 0.111      
8 H 0.111      
9 H 0.111      
10 H 0.111      


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 -51.952 12.607 0.000
y 12.607 -39.265 0.000
z 0.000 0.000 -32.574
Traceless
 xyz
x -16.032 12.607 0.000
y 12.607 2.998 0.000
z 0.000 0.000 13.034
Polar
3z2-r226.068
x2-y2-12.687
xy12.607
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 210.116
(<r2>)1/2 14.495