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All results from a given calculation for C3H2N2 (Malononitrile)

using model chemistry: wB97X-D/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 wB97X-D/6-31G*
 hartrees
Energy at 0K-224.892788
Energy at 298.15K-224.894490
HF Energy-224.892788
Nuclear repulsion energy 
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 wB97X-D/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 3093 2934 0.61      
2 A1 2430 2305 0.61      
3 A1 1473 1397 14.69      
4 A1 919 871 5.60      
5 A1 590 559 0.48      
6 A1 149 141 10.64      
7 A2 1273 1207 0.00      
8 A2 387 367 0.00      
9 B1 3142 2980 2.92      
10 B1 956 907 1.11      
11 B1 347 329 0.37      
12 B2 2427 2302 1.78      
13 B2 1381 1310 2.39      
14 B2 1006 955 8.70      
15 B2 380 360 0.78      

Unscaled Zero Point Vibrational Energy (zpe) 9976.2 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 9462.4 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 wB97X-D/6-31G*
ABC
0.69142 0.09795 0.08719

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.845
C2 0.000 1.219 0.026
C3 0.000 -1.219 0.026
H4 0.885 0.000 1.490
H5 -0.885 0.000 1.490
N6 0.000 2.191 -0.597
N7 0.000 -2.191 -0.597

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 N6 N7
C11.46861.46861.09501.09502.62312.6231
C21.46862.43892.10042.10041.15463.4671
C31.46862.43892.10042.10043.46711.1546
H41.09502.10042.10041.76953.15293.1529
H51.09502.10042.10041.76953.15293.1529
N62.62311.15463.46713.15293.15294.3821
N72.62313.46711.15463.15293.15294.3821

picture of Malononitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 178.838 C1 C3 N7 178.838
C2 C1 C3 112.266 C2 C1 H4 109.167
C2 C1 H5 109.167 C3 C1 H4 109.167
C3 C1 H5 109.167 H4 C1 H5 107.804
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.446      
2 C 0.367      
3 C 0.367      
4 H 0.281      
5 H 0.281      
6 N -0.425      
7 N -0.425      


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 3.809 3.809
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.249 0.000 0.000
y 0.000 -41.558 0.000
z 0.000 0.000 -26.247
Traceless
 xyz
x 7.654 0.000 0.000
y 0.000 -15.311 0.000
z 0.000 0.000 7.657
Polar
3z2-r215.313
x2-y215.310
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.308 0.000 0.000
y 0.000 7.088 0.000
z 0.000 0.000 4.582


<r2> (average value of r2) Å2
<r2> 120.063
(<r2>)1/2 10.957