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All results from a given calculation for C3H2N2 (Malononitrile)

using model chemistry: wB97X-D/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-224.902953
Energy at 298.15K-224.904655
HF Energy-224.902953
Nuclear repulsion energy124.705369
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/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 A1 3089 2943 1.05      
2 A1 2421 2306 0.77      
3 A1 1449 1380 15.83      
4 A1 914 871 6.70      
5 A1 587 559 0.22      
6 A1 149 142 11.14      
7 A2 1260 1200 0.00      
8 A2 383 364 0.00      
9 B1 3142 2993 4.79      
10 B1 940 895 0.34      
11 B1 339 323 0.14      
12 B2 2418 2303 3.16      
13 B2 1364 1299 3.60      
14 B2 1003 955 8.69      
15 B2 375 358 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 9916.0 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 9446.0 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/cc-pVDZ
ABC
0.69988 0.09750 0.08697

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.841
C2 0.000 1.220 0.023
C3 0.000 -1.220 0.023
H4 0.885 0.000 1.484
H5 -0.885 0.000 1.484
N6 0.000 2.196 -0.593
N7 0.000 -2.196 -0.593

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 N6 N7
C11.46841.46841.09411.09412.62282.6228
C21.46842.43932.09882.09881.15473.4711
C31.46842.43932.09882.09883.47111.1547
H41.09412.09882.09881.77023.14973.1497
H51.09412.09882.09881.77023.14973.1497
N62.62281.15473.47113.14973.14974.3927
N72.62283.47111.15473.14973.14974.3927

picture of Malononitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 178.399 C1 C3 N7 178.399
C2 C1 C3 112.324 C2 C1 H4 109.109
C2 C1 H5 109.109 C3 C1 H4 109.109
C3 C1 H5 109.109 H4 C1 H5 107.986
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.245      
2 C 0.278      
3 C 0.278      
4 H 0.256      
5 H 0.256      
6 N -0.411      
7 N -0.411      


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 3.960 3.960
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.910 0.000 0.000
y 0.000 -42.996 0.000
z 0.000 0.000 -26.833
Traceless
 xyz
x 8.005 0.000 0.000
y 0.000 -16.125 0.000
z 0.000 0.000 8.120
Polar
3z2-r216.241
x2-y216.087
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.016 0.000 0.000
y 0.000 8.057 0.000
z 0.000 0.000 5.284


<r2> (average value of r2) Å2
<r2> 120.854
(<r2>)1/2 10.993