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 CHNH2 (aminomethylene)

using model chemistry: TPSSh/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/TZVP
 hartrees
Energy at 0K-94.610877
Energy at 298.15K-94.613802
HF Energy-94.610877
Nuclear repulsion energy32.816642
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 TPSSh/TZVP
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' 3529 3401 13.04 104.42 0.61 0.76
2 A' 3351 3229 27.14 396.74 0.29 0.45
3 A' 2906 2800 119.73 173.29 0.54 0.70
4 A' 1708 1646 9.17 28.04 0.47 0.64
5 A' 1434 1382 20.02 10.24 0.47 0.64
6 A' 1396 1345 14.60 0.97 0.68 0.81
7 A' 1073 1034 24.25 13.89 0.49 0.66
8 A" 1168 1125 10.20 2.09 0.75 0.86
9 A" 837 807 175.20 0.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8700.8 cm-1
Scaled (by 0.9637) Zero Point Vibrational Energy (zpe) 8384.9 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 TPSSh/TZVP
ABC
6.80934 1.13076 0.96973

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.063 0.788 0.000
N2 0.063 -0.523 0.000
H3 -1.005 1.091 0.000
H4 -0.755 -1.138 0.000
H5 0.947 -1.020 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5
C11.31161.10982.09312.0134
N21.31161.93521.02311.0144
H31.10981.93522.24332.8753
H42.09311.02312.24331.7056
H52.01341.01442.87531.7056

picture of aminomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 126.969 C1 N2 H5 119.353
N2 C1 H3 105.809 H4 N2 H5 113.678
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.198      
2 N -0.314      
3 H 0.050      
4 H 0.206      
5 H 0.256      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.350 -3.290 0.000 3.557
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.297 -0.051 0.000
y -0.051 4.422 0.000
z 0.000 0.000 2.135


<r2> (average value of r2) Å2
<r2> 19.969
(<r2>)1/2 4.469