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: B2PLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/6-31G(2df,p)
 hartrees
Energy at 0K-94.488652
Energy at 298.15K-94.491565
HF Energy-94.378041
Nuclear repulsion energy32.834716
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 B2PLYP/6-31G(2df,p)
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' 3601 3439 16.46 85.93 0.60 0.75
2 A' 3448 3293 5.67 220.46 0.24 0.39
3 A' 2954 2821 104.56 115.71 0.42 0.60
4 A' 1699 1623 10.21 20.13 0.45 0.62
5 A' 1443 1378 16.36 11.36 0.41 0.58
6 A' 1408 1344 9.42 3.91 0.41 0.58
7 A' 1076 1027 21.92 7.61 0.52 0.69
8 A" 1172 1119 9.57 0.93 0.75 0.86
9 A" 803 767 150.45 0.67 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8801.6 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 8405.5 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 B2PLYP/6-31G(2df,p)
ABC
6.83458 1.12987 0.96958

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.063 0.790 0.000
N2 0.063 -0.524 0.000
H3 -1.008 1.083 0.000
H4 -0.749 -1.137 0.000
H5 0.943 -1.020 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5
C11.31361.10962.09062.0126
N21.31361.93051.01731.0109
H31.10961.93052.23452.8684
H42.09061.01732.23451.6969
H52.01261.01092.86841.6969

picture of aminomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 127.039 C1 N2 H5 119.385
N2 C1 H3 105.320 H4 N2 H5 113.576
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.286      
2 N -0.350      
3 H 0.095      
4 H 0.260      
5 H 0.281      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.138 -3.202 0.000 3.398
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.699 -1.994 -0.002
y -1.994 -13.205 -0.004
z -0.002 -0.004 -13.390
Traceless
 xyz
x 1.598 -1.994 -0.002
y -1.994 -0.661 -0.004
z -0.002 -0.004 -0.938
Polar
3z2-r2-1.875
x2-y21.506
xy-1.994
xz-0.002
yz-0.004


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.805 -0.253 0.000
y -0.253 3.722 0.000
z 0.000 0.000 1.729


<r2> (average value of r2) Å2
<r2> 19.658
(<r2>)1/2 4.434