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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-224.918678
Energy at 298.15K-224.920239
Nuclear repulsion energy123.419298
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 2969 2947 0.00      
2 A1 2286 2268 0.09      
3 A1 1416 1405 10.70      
4 A1 870 863 4.36      
5 A1 558 554 0.18      
6 A1 141 139 9.22      
7 A2 1205 1196 0.00      
8 A2 359 356 0.00      
9 B1 3004 2981 0.70      
10 B1 913 906 0.64      
11 B1 330 328 0.23      
12 B2 2278 2261 0.39      
13 B2 1299 1289 4.31      
14 B2 950 942 4.76      
15 B2 356 354 0.35      

Unscaled Zero Point Vibrational Energy (zpe) 9466.7 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 9393.9 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 BLYP/6-31G**
ABC
0.68525 0.09558 0.08523

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 0.843
C2 0.000 1.233 0.028
C3 0.000 -1.233 0.028
H4 0.888 0.000 1.501
H5 -0.888 0.000 1.501
N6 0.000 2.222 -0.599
N7 0.000 -2.222 -0.599

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 N6 N7
C11.47801.47801.10461.10462.64952.6495
C21.47802.46512.11592.11591.17163.5113
C31.47802.46512.11592.11593.51131.1716
H41.10462.11592.11591.77523.18383.1838
H51.10462.11592.11591.77523.18383.1838
N62.64951.17163.51133.18383.18384.4448
N72.64953.51131.17163.18383.18384.4448

picture of Malononitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 178.853 C1 C3 N7 178.853
C2 C1 C3 113.014 C2 C1 H4 109.176
C2 C1 H5 109.176 C3 C1 H4 109.176
C3 C1 H5 109.176 H4 C1 H5 106.941
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 -0.267      
2 C 0.365      
3 C 0.365      
4 H 0.195      
5 H 0.195      
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 3.607 3.607
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.344 0.000 0.000
y 0.000 -41.248 0.000
z 0.000 0.000 -26.361
Traceless
 xyz
x 7.461 0.000 0.000
y 0.000 -14.895 0.000
z 0.000 0.000 7.435
Polar
3z2-r214.869
x2-y214.904
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.386 0.000 0.000
y 0.000 7.554 0.000
z 0.000 0.000 4.744


<r2> (average value of r2) Å2
<r2> 121.674
(<r2>)1/2 11.031