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All results from a given calculation for C3H2N2 (Malononitrile)

using model chemistry: B3LYP/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/LANL2DZ
 hartrees
Energy at 0K-224.927508
Energy at 298.15K-224.929208
Nuclear repulsion energy123.264204
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/LANL2DZ
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 3071 2952 0.10      
2 A1 2304 2215 0.29      
3 A1 1481 1423 24.52      
4 A1 899 864 9.87      
5 A1 584 561 0.03      
6 A1 151 145 8.17      
7 A2 1260 1211 0.00      
8 A2 384 369 0.00      
9 B1 3124 3003 0.12      
10 B1 963 925 0.05      
11 B1 350 336 0.95      
12 B2 2302 2213 2.02      
13 B2 1366 1313 0.18      
14 B2 1000 961 14.41      
15 B2 382 367 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 9809.5 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 9428.9 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 B3LYP/LANL2DZ
ABC
0.68330 0.09546 0.08509

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.845
C2 0.000 1.230 0.029
C3 0.000 -1.230 0.029
H4 0.884 0.000 1.497
H5 -0.884 0.000 1.497
N6 0.000 2.226 -0.601
N7 0.000 -2.226 -0.601

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 N6 N7
C11.47611.47611.09801.09802.65432.6543
C21.47612.45962.10922.10921.17843.5124
C31.47612.45962.10922.10923.51241.1784
H41.09802.10922.10921.76723.18383.1838
H51.09802.10922.10921.76723.18383.1838
N62.65431.17843.51243.18383.18384.4512
N72.65433.51241.17843.18383.18384.4512

picture of Malononitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 178.739 C1 C3 N7 178.739
C2 C1 C3 112.841 C2 C1 H4 109.166
C2 C1 H5 109.166 C3 C1 H4 109.166
C3 C1 H5 109.166 H4 C1 H5 107.175
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.389      
2 C -0.103      
3 C -0.103      
4 H 0.282      
5 H 0.282      
6 N 0.016      
7 N 0.016      


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 3.930 3.930
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.809 0.000 0.000
y 0.000 -43.222 0.000
z 0.000 0.000 -26.912
Traceless
 xyz
x 8.258 0.000 0.000
y 0.000 -16.362 0.000
z 0.000 0.000 8.104
Polar
3z2-r216.208
x2-y216.413
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.273 0.000 0.000
y 0.000 7.418 0.000
z 0.000 0.000 4.653


<r2> (average value of r2) Å2
<r2> 122.401
(<r2>)1/2 11.063