return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for H2CNCH (methyleneaminomethylene)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-131.076733
Energy at 298.15K-131.079404
HF Energy-131.076733
Nuclear repulsion energy61.365292
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 HF/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3297 2976 0.03      
2 A' 3149 2842 46.83      
3 A' 2027 1829 142.96      
4 A' 1665 1503 0.32      
5 A' 1272 1148 1.54      
6 A' 1042 941 107.76      
7 A' 1033 932 427.33      
8 A' 522 471 36.12      
9 A" 3394 3063 16.90      
10 A" 1298 1171 12.05      
11 A" 1081 975 7.83      
12 A" 337 304 10.81      

Unscaled Zero Point Vibrational Energy (zpe) 10057.3 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 9077.7 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 HF/3-21G*
ABC
6.61861 0.35541 0.34889

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -1.164 0.000
N2 0.000 0.089 0.000
C3 -0.110 1.318 0.000
H4 -0.027 -1.710 0.923
H5 -0.027 -1.710 -0.923
H6 0.830 1.872 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.25312.48421.07251.07253.1520
N21.25311.23442.02242.02241.9663
C32.48421.23443.16743.16741.0907
H41.07252.02243.16741.84583.7970
H51.07252.02243.16741.84583.7970
H63.15201.96631.09073.79703.7970

picture of methyleneaminomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 174.014 N2 C1 H4 120.630
N2 C1 H5 120.630 N2 C3 H6 115.347
H4 C1 H5 118.741
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.092      
2 N -0.661      
3 C 0.079      
4 H 0.233      
5 H 0.233      
6 H 0.208      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.668 -1.696 0.000 2.379
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.013 3.361 0.000
y 3.361 -17.466 0.000
z 0.000 0.000 -17.323
Traceless
 xyz
x -2.618 3.361 0.000
y 3.361 1.202 0.000
z 0.000 0.000 1.417
Polar
3z2-r22.834
x2-y2-2.547
xy3.361
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.769 0.237 0.000
y 0.237 8.467 0.000
z 0.000 0.000 2.338


<r2> (average value of r2) Å2
<r2> 41.847
(<r2>)1/2 6.469