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All results from a given calculation for C3H2N2 (Malononitrile)

using model chemistry: BLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/6-31G*
 hartrees
Energy at 0K-224.915927
Energy at 298.15K-224.917488
HF Energy-224.915927
Nuclear repulsion energy123.405096
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 BLYP/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 2970 2946 0.01      
2 A1 2286 2267 0.06      
3 A1 1434 1423 10.78      
4 A1 871 864 4.36      
5 A1 559 555 0.18      
6 A1 141 140 9.12      
7 A2 1220 1210 0.00      
8 A2 360 357 0.00      
9 B1 3002 2978 0.44      
10 B1 925 918 0.71      
11 B1 332 329 0.23      
12 B2 2279 2260 0.35      
13 B2 1315 1304 4.41      
14 B2 951 943 5.09      
15 B2 357 355 0.40      

Unscaled Zero Point Vibrational Energy (zpe) 9500.6 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 9423.6 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 BLYP/6-31G*
ABC
0.67945 0.09582 0.08533

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.850
C2 0.000 1.232 0.030
C3 0.000 -1.232 0.030
H4 0.888 0.000 1.505
H5 -0.888 0.000 1.505
N6 0.000 2.212 -0.605
N7 0.000 -2.212 -0.605

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 N6 N7
C11.48011.48011.10341.10342.64752.6475
C21.48012.46362.11712.11711.16753.5017
C31.48012.46362.11712.11713.50171.1675
H41.10342.11712.11711.77693.18293.1829
H51.10342.11712.11711.77693.18293.1829
N62.64751.16753.50173.18293.18294.4240
N72.64753.50171.16753.18293.18294.4240

picture of Malononitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 179.237 C1 C3 N7 179.237
C2 C1 C3 112.666 C2 C1 H4 109.195
C2 C1 H5 109.195 C3 C1 H4 109.195
C3 C1 H5 109.195 H4 C1 H5 107.248
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.381      
2 C 0.384      
3 C 0.384      
4 H 0.233      
5 H 0.233      
6 N -0.427      
7 N -0.427      


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 3.615 3.615
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.343 0.000 0.000
y 0.000 -41.201 0.000
z 0.000 0.000 -26.388
Traceless
 xyz
x 7.451 0.000 0.000
y 0.000 -14.836 0.000
z 0.000 0.000 7.385
Polar
3z2-r214.769
x2-y214.858
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.369 0.000 0.000
y 0.000 7.507 0.000
z 0.000 0.000 4.741


<r2> (average value of r2) Å2
<r2> 122.217
(<r2>)1/2 11.055