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 NHCHNH2 (aminomethanimine)

using model chemistry: HF/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-27.160033
Energy at 298.15K-27.165526
Nuclear repulsion energy41.235593
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/CEP-31G*
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 3923 3523 27.48      
2 A 3802 3414 24.77      
3 A 3793 3406 1.60      
4 A 3295 2959 79.82      
5 A 1893 1700 385.85      
6 A 1786 1604 41.43      
7 A 1545 1387 31.56      
8 A 1432 1286 30.69      
9 A 1218 1094 68.78      
10 A 1179 1059 32.31      
11 A 1143 1027 46.95      
12 A 887 797 26.06      
13 A 681 611 417.16      
14 A 581 522 9.37      
15 A 425 382 113.71      

Unscaled Zero Point Vibrational Energy (zpe) 13791.4 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 12384.6 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 HF/CEP-31G*
ABC
2.23189 0.35737 0.31065

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.129 0.391 -0.006
N2 1.150 -0.143 -0.083
N3 -1.172 -0.334 0.019
H4 -0.137 1.482 -0.015
H5 1.869 0.395 0.360
H6 1.189 -1.123 0.131
H7 -1.995 0.245 0.009

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5 H6 H7
C11.38771.27041.09102.03112.01121.8716
N21.38772.33152.07391.00131.00343.1697
N31.27042.33152.09033.14552.49091.0068
H41.09102.07392.09032.31252.92612.2314
H52.03111.00133.14552.31251.67873.8826
H62.01121.00342.49092.92611.67873.4669
H71.87163.16971.00682.23143.88263.4669

picture of aminomethanimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H5 115.516 C1 N2 H6 113.541
C1 N3 H7 110.007 N2 C1 N3 122.532
N2 C1 H4 113.036 N3 C1 H4 124.376
H5 N2 H6 113.731
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.333      
2 N -0.517      
3 N -0.244      
4 H 0.160      
5 H 0.320      
6 H 0.346      
7 H 0.267      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.595 2.240 1.155 2.983
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.856 -3.074 2.325
y -3.074 -17.157 -0.040
z 2.325 -0.040 -20.617
Traceless
 xyz
x 3.031 -3.074 2.325
y -3.074 1.080 -0.040
z 2.325 -0.040 -4.111
Polar
3z2-r2-8.222
x2-y21.301
xy-3.074
xz2.325
yz-0.040


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.073 0.429 0.016
y 0.429 3.379 0.026
z 0.016 0.026 2.069


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000