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: mPW1PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/cc-pVTZ
 hartrees
Energy at 0K-150.025507
Energy at 298.15K-150.030815
Nuclear repulsion energy72.475212
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 mPW1PW91/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 3749 3596 34.92      
2 A 3617 3470 25.78      
3 A 3565 3420 4.64      
4 A 3057 2933 57.70      
5 A 1757 1686 290.14      
6 A 1628 1562 32.93      
7 A 1419 1361 26.87      
8 A 1340 1285 29.02      
9 A 1119 1074 123.89      
10 A 1098 1054 4.81      
11 A 1058 1015 0.52      
12 A 810 777 41.12      
13 A 575 552 92.31      
14 A 536 514 52.81      
15 A 367 352 181.64      

Unscaled Zero Point Vibrational Energy (zpe) 12847.8 cm-1
Scaled (by 0.9592) Zero Point Vibrational Energy (zpe) 12323.6 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 mPW1PW91/cc-pVTZ
ABC
2.26265 0.36336 0.31444

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.122 0.389 -0.002
N2 1.130 -0.147 -0.061
N3 -1.167 -0.330 0.013
H4 -0.116 1.483 -0.007
H5 1.904 0.411 0.245
H6 1.197 -1.136 0.106
H7 -1.996 0.250 0.003

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5 H6 H7
C11.36361.26801.09432.04162.01941.8790
N21.36362.30532.05251.00191.00553.1521
N31.26802.30532.09593.16742.49911.0124
H41.09432.05252.09592.30092.93212.2487
H52.04161.00193.16742.30091.70633.9111
H62.01941.00552.49912.93211.70633.4827
H71.87903.15211.01242.24873.91113.4827

picture of aminomethanimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H5 118.527 C1 N2 H6 116.132
C1 N3 H7 110.469 N2 C1 N3 122.287
N2 C1 H4 112.782 N3 C1 H4 124.893
H5 N2 H6 116.431
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.042      
2 N -0.198      
3 N -0.309      
4 H 0.047      
5 H 0.143      
6 H 0.150      
7 H 0.127      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.907 1.748 0.657 2.669
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.054 -2.672 1.389
y -2.672 -17.236 -0.033
z 1.389 -0.033 -20.389
Traceless
 xyz
x 3.759 -2.672 1.389
y -2.672 0.486 -0.033
z 1.389 -0.033 -4.244
Polar
3z2-r2-8.489
x2-y22.182
xy-2.672
xz1.389
yz-0.033


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.806 0.216 0.017
y 0.216 4.112 -0.008
z 0.017 -0.008 2.667


<r2> (average value of r2) Å2
<r2> 44.225
(<r2>)1/2 6.650