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All results from a given calculation for C3H2N2 (Malononitrile)

using model chemistry: B1B95/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 B1B95/cc-pVDZ
 hartrees
Energy at 0K-224.909401
Energy at 298.15K-224.911087
Nuclear repulsion energy124.761746
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 B1B95/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 3077 2957 0.78      
2 A1 2405 2312 0.82      
3 A1 1407 1352 14.56      
4 A1 917 882 4.45      
5 A1 586 563 0.18      
6 A1 146 140 9.20      
7 A2 1221 1174 0.00      
8 A2 377 363 0.00      
9 B1 3127 3005 4.56      
10 B1 916 880 0.59      
11 B1 343 330 0.06      
12 B2 2402 2309 2.57      
13 B2 1323 1272 4.52      
14 B2 1010 970 4.92      
15 B2 377 362 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 9816.5 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 9435.6 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 B1B95/cc-pVDZ
ABC
0.70179 0.09766 0.08713

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.833
C2 0.000 1.219 0.026
C3 0.000 -1.219 0.026
H4 0.886 0.000 1.485
H5 -0.886 0.000 1.485
N6 0.000 2.199 -0.591
N7 0.000 -2.199 -0.591

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 N6 N7
C11.46171.46171.10041.10042.61942.6194
C21.46172.43762.09772.09771.15803.4727
C31.46172.43762.09772.09773.47271.1580
H41.10042.09772.09771.77183.15133.1513
H51.10042.09772.09771.77183.15133.1513
N62.61941.15803.47273.15133.15134.3973
N72.61943.47271.15803.15133.15134.3973

picture of Malononitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 178.698 C1 C3 N7 178.698
C2 C1 C3 112.995 C2 C1 H4 109.110
C2 C1 H5 109.110 C3 C1 H4 109.110
C3 C1 H5 109.110 H4 C1 H5 107.243
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.047      
2 C -0.059      
3 C -0.059      
4 H 0.130      
5 H 0.130      
6 N -0.094      
7 N -0.094      


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 3.624 3.624
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.373 0.000 0.000
y 0.000 -40.882 0.000
z 0.000 0.000 -26.246
Traceless
 xyz
x 7.190 0.000 0.000
y 0.000 -14.572 0.000
z 0.000 0.000 7.382
Polar
3z2-r214.764
x2-y214.509
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.465 0.000 0.000
y 0.000 7.266 0.000
z 0.000 0.000 4.725


<r2> (average value of r2) Å2
<r2> 120.013
(<r2>)1/2 10.955