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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-224.851347
Energy at 298.15K-224.852912
Nuclear repulsion energy122.779968
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 2966 2944 0.11      
2 A1 2235 2218 0.06      
3 A1 1458 1447 17.50      
4 A1 865 858 6.17      
5 A1 562 558 0.01      
6 A1 142 141 7.92      
7 A2 1240 1230 0.00      
8 A2 355 353 0.00      
9 B1 2999 2977 0.20      
10 B1 947 940 0.37      
11 B1 327 325 0.12      
12 B2 2227 2210 0.58      
13 B2 1336 1325 0.85      
14 B2 956 949 7.23      
15 B2 347 345 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 9481.1 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 9409.1 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
0.68346 0.09448 0.08432

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 0.842
C2 0.000 1.236 0.030
C3 0.000 -1.236 0.030
H4 0.886 0.000 1.504
H5 -0.886 0.000 1.504
N6 0.000 2.237 -0.601
N7 0.000 -2.237 -0.601

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 N6 N7
C11.47921.47921.10661.10662.66222.6622
C21.47922.47302.11862.11861.18313.5305
C31.47922.47302.11862.11863.53051.1831
H41.10662.11862.11861.77283.19763.1976
H51.10662.11862.11861.77283.19763.1976
N62.66221.18313.53053.19763.19764.4741
N72.66223.53051.18313.19763.19764.4741

picture of Malononitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 178.963 C1 C3 N7 178.963
C2 C1 C3 113.423 C2 C1 H4 109.184
C2 C1 H5 109.184 C3 C1 H4 109.184
C3 C1 H5 109.184 H4 C1 H5 106.448
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 -0.316      
2 C 0.147      
3 C 0.147      
4 H 0.229      
5 H 0.229      
6 N -0.218      
7 N -0.218      


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 3.673 3.673
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.504 0.000 0.000
y 0.000 -42.247 0.000
z 0.000 0.000 -26.690
Traceless
 xyz
x 7.965 0.000 0.000
y 0.000 -15.650 0.000
z 0.000 0.000 7.685
Polar
3z2-r215.370
x2-y215.744
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.195 0.000 0.000
y 0.000 7.469 0.000
z 0.000 0.000 4.590


<r2> (average value of r2) Å2
<r2> 123.133
(<r2>)1/2 11.097