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All results from a given calculation for C3H2N2 (Malononitrile)

using model chemistry: B3LYP/TZVP

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/TZVP
 hartrees
Energy at 0K-225.057852
Energy at 298.15K-225.059546
HF Energy-225.057852
Nuclear repulsion energy125.119896
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/TZVP
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 3048 2943 0.51      
2 A1 2388 2305 0.43      
3 A1 1452 1401 14.87      
4 A1 903 872 5.60      
5 A1 588 568 0.36      
6 A1 149 144 10.86      
7 A2 1253 1210 0.00      
8 A2 376 363 0.00      
9 B1 3084 2977 3.23      
10 B1 942 910 0.36      
11 B1 342 330 0.20      
12 B2 2382 2299 2.15      
13 B2 1351 1304 3.29      
14 B2 988 954 7.18      
15 B2 375 362 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 9809.7 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 9470.3 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/TZVP
ABC
0.70854 0.09786 0.08738

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.831
C2 0.000 1.221 0.023
C3 0.000 -1.221 0.023
H4 0.880 0.000 1.480
H5 -0.880 0.000 1.480
N6 0.000 2.195 -0.587
N7 0.000 -2.195 -0.587

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 N6 N7
C11.46391.46391.09381.09382.61302.6130
C21.46392.44202.09462.09461.14933.4700
C31.46392.44202.09462.09463.47001.1493
H41.09382.09462.09461.76093.14083.1408
H51.09382.09462.09461.76093.14083.1408
N62.61301.14933.47003.14083.14084.3898
N72.61303.47001.14933.14083.14084.3898

picture of Malononitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 178.590 C1 C3 N7 178.590
C2 C1 C3 113.039 C2 C1 H4 109.107
C2 C1 H5 109.107 C3 C1 H4 109.107
C3 C1 H5 109.107 H4 C1 H5 107.208
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.315      
2 C 0.035      
3 C 0.035      
4 H 0.208      
5 H 0.208      
6 N -0.085      
7 N -0.085      


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 3.855 3.855
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.957 0.000 0.000
y 0.000 -43.000 0.000
z 0.000 0.000 -27.039
Traceless
 xyz
x 8.063 0.000 0.000
y 0.000 -16.002 0.000
z 0.000 0.000 7.939
Polar
3z2-r215.878
x2-y216.043
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.888 0.000 0.000
y 0.000 7.906 0.000
z 0.000 0.000 5.177


<r2> (average value of r2) Å2
<r2> 120.432
(<r2>)1/2 10.974