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All results from a given calculation for C3H2N2 (Malononitrile)

using model chemistry: B3LYPultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYPultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-225.063515
Energy at 298.15K-225.065197
HF Energy-225.063515
Nuclear repulsion energy125.202674
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 B3LYPultrafine/aug-cc-pVTZ
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 3043 2945 0.67      
2 A1 2378 2300 0.44      
3 A1 1446 1399 12.93      
4 A1 900 871 4.35      
5 A1 585 566 0.73      
6 A1 148 143 11.93      
7 A2 1249 1208 0.00      
8 A2 372 360 0.00      
9 B1 3077 2977 3.60      
10 B1 940 910 0.37      
11 B1 339 328 0.89      
12 B2 2372 2294 2.74      
13 B2 1344 1301 5.17      
14 B2 986 954 5.77      
15 B2 372 360 0.75      

Unscaled Zero Point Vibrational Energy (zpe) 9775.1 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 9457.4 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 B3LYPultrafine/aug-cc-pVTZ
ABC
0.71222 0.09784 0.08741

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.836
C2 0.000 1.219 0.023
C3 0.000 -1.219 0.023
H4 0.881 0.000 1.479
H5 -0.881 0.000 1.479
N6 0.000 2.189 -0.589
N7 0.000 -2.189 -0.589

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 N6 N7
C11.46531.46531.09111.09112.61142.6114
C21.46532.43872.09372.09371.14633.4624
C31.46532.43872.09372.09373.46241.1463
H41.09112.09372.09371.76233.13753.1375
H51.09112.09372.09371.76233.13753.1375
N62.61141.14633.46243.13753.13754.3771
N72.61143.46241.14633.13753.13754.3771

picture of Malononitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 178.594 C1 C3 N7 178.594
C2 C1 C3 112.639 C2 C1 H4 109.092
C2 C1 H5 109.092 C3 C1 H4 109.092
C3 C1 H5 109.092 H4 C1 H5 107.714
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.172      
2 C 0.081      
3 C 0.081      
4 H 0.222      
5 H 0.222      
6 N -0.389      
7 N -0.389      


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 3.846 3.846
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.980 0.000 0.000
y 0.000 -43.094 0.000
z 0.000 0.000 -27.042
Traceless
 xyz
x 8.089 0.000 0.000
y 0.000 -16.083 0.000
z 0.000 0.000 7.995
Polar
3z2-r215.989
x2-y216.115
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.766 0.000 0.000
y 0.000 8.522 0.000
z 0.000 0.000 5.878


<r2> (average value of r2) Å2
<r2> 120.405
(<r2>)1/2 10.973