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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: B2PLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-264.185342
Energy at 298.15K-264.189216
HF Energy-263.849011
Nuclear repulsion energy179.203586
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 B2PLYP/cc-pVTZ
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 3082 2957 0.00      
2 Ag 2295 2202 0.00      
3 Ag 1486 1426 0.00      
4 Ag 1392 1335 0.00      
5 Ag 1034 992 0.00      
6 Ag 971 932 0.00      
7 Ag 514 493 0.00      
8 Ag 221 212 0.00      
9 Au 3140 3012 0.33      
10 Au 1221 1172 0.00      
11 Au 776 745 2.51      
12 Au 394 378 0.10      
13 Au 78 75 21.54      
14 Bg 3121 2994 0.00      
15 Bg 1327 1274 0.00      
16 Bg 1046 1003 0.00      
17 Bg 354 340 0.00      
18 Bu 3092 2966 2.04      
19 Bu 2297 2204 1.80      
20 Bu 1495 1434 14.44      
21 Bu 1302 1249 2.30      
22 Bu 934 896 3.94      
23 Bu 523 502 0.81      
24 Bu 130 124 22.22      

Unscaled Zero Point Vibrational Energy (zpe) 16112.0 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 15457.9 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 B2PLYP/cc-pVTZ
ABC
0.85499 0.04961 0.04772

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.424 0.643 0.000
C2 -0.424 -0.643 0.000
C3 -0.424 1.829 0.000
C4 0.424 -1.829 0.000
N5 1.122 -2.753 0.000
N6 -1.122 2.753 0.000
H7 1.068 0.667 0.878
H8 1.068 0.667 -0.878
H9 -1.068 -0.667 0.878
H10 -1.068 -0.667 -0.878

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.54031.45902.47203.46702.61641.08881.08882.17132.1713
C21.54032.47201.45902.61643.46702.17132.17131.08881.0888
C31.45902.47203.75584.83661.15762.08522.08522.72382.7238
C42.47201.45903.75581.15764.83662.72382.72382.08522.0852
N53.46702.61644.83661.15765.94633.53223.53223.14913.1491
N62.61643.46701.15764.83665.94633.14913.14913.53223.5322
H71.08882.17132.08522.72383.53223.14911.75552.51913.0704
H81.08882.17132.08522.72383.53223.14911.75553.07042.5191
H92.17131.08882.72382.08523.14913.53222.51913.07041.7555
H102.17131.08882.72382.08523.14913.53223.07042.51911.7555

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 110.985 C1 C2 H9 110.170
C1 C2 H10 110.170 C1 C3 N6 178.545
C2 C1 C3 110.985 C2 C1 H7 110.170
C2 C1 H8 110.170 C2 C4 N5 178.545
C3 C1 H7 108.993 C3 C1 H8 108.993
C4 C2 H9 108.993 C4 C2 H10 108.993
H7 C1 H8 107.448 H9 C2 H10 107.448
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.151      
2 C -0.151      
3 C -0.097      
4 C -0.097      
5 N -0.060      
6 N -0.060      
7 H 0.154      
8 H 0.154      
9 H 0.154      
10 H 0.154      


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 -37.824 11.857 0.000
y 11.857 -56.841 0.000
z 0.000 0.000 -33.228
Traceless
 xyz
x 7.210 11.857 0.000
y 11.857 -21.315 0.000
z 0.000 0.000 14.105
Polar
3z2-r228.210
x2-y219.017
xy11.857
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.093 -2.123 0.000
y -2.123 9.925 0.000
z 0.000 0.000 5.459


<r2> (average value of r2) Å2
<r2> 209.471
(<r2>)1/2 14.473