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: PBEPBEultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-94.489822
Energy at 298.15K-94.492718
HF Energy-94.489822
Nuclear repulsion energy32.725659
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 PBEPBEultrafine/aug-cc-pVTZ
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' 3431 3392 13.48 106.14 0.66 0.80
2 A' 3231 3195 66.18 669.96 0.30 0.46
3 A' 2844 2812 98.35 200.71 0.60 0.75
4 A' 1631 1612 6.67 31.57 0.56 0.71
5 A' 1412 1396 7.75 10.00 0.23 0.37
6 A' 1333 1318 13.59 29.35 0.19 0.32
7 A' 1037 1025 30.18 25.95 0.28 0.44
8 A" 1129 1116 10.32 0.22 0.75 0.86
9 A" 793 784 132.00 1.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8419.4 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 8325.1 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 PBEPBEultrafine/aug-cc-pVTZ
ABC
6.74645 1.12720 0.96583

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/aug-cc-pVTZ

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 -1.008 1.101 0.000
H4 -0.760 -1.144 0.000
H5 0.952 -1.025 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5
C11.31171.11582.10032.0193
N21.31171.94561.03091.0205
H31.11581.94562.25842.8914
H42.10031.03092.25841.7163
H52.01931.02052.89141.7163

picture of aminomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 127.008 C1 N2 H5 119.426
N2 C1 H3 106.263 H4 N2 H5 113.566
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.472      
2 N -0.022      
3 H 0.258      
4 H 0.088      
5 H 0.148      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.270 -3.236 0.000 3.476
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.485 -2.413 0.000
y -2.413 -13.985 0.000
z 0.000 0.000 -14.217
Traceless
 xyz
x 1.616 -2.413 0.000
y -2.413 -0.634 0.000
z 0.000 0.000 -0.982
Polar
3z2-r2-1.964
x2-y21.500
xy-2.413
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.098 0.258 0.000
y 0.258 5.330 0.000
z 0.000 0.000 3.109


<r2> (average value of r2) Å2
<r2> 20.240
(<r2>)1/2 4.499