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 NH2CH2CN (Aminoacetonitrile)

using model chemistry: wB97X-D/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/CEP-31G*
 hartrees
Energy at 0K-33.488638
Energy at 298.15K-33.493415
HF Energy-33.488638
Nuclear repulsion energy 
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 wB97X-D/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' 3556 3556 1.12      
2 A' 3127 3127 20.08      
3 A' 2373 2373 5.66      
4 A' 1703 1703 29.84      
5 A' 1480 1480 8.86      
6 A' 1367 1367 17.88      
7 A' 1129 1129 14.12      
8 A' 933 933 177.76      
9 A' 848 848 59.79      
10 A' 563 563 16.93      
11 A' 214 214 12.18      
12 A" 3653 3653 3.79      
13 A" 3177 3177 11.04      
14 A" 1389 1389 0.30      
15 A" 1197 1197 0.01      
16 A" 894 894 0.09      
17 A" 388 388 20.94      
18 A" 268 268 57.99      

Unscaled Zero Point Vibrational Energy (zpe) 14128.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14128.6 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 wB97X-D/CEP-31G*
ABC
0.99117 0.15444 0.14016

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.463 0.741 0.000
C2 0.000 0.846 0.000
C3 0.728 -0.475 0.000
N4 1.255 -1.525 0.000
H5 -1.779 0.224 0.822
H6 -1.779 0.224 -0.822
H7 0.327 1.406 0.886
H8 0.327 1.406 -0.886

Atom - Atom Distances (Å)
  N1 C2 C3 N4 H5 H6 H7 H8
N11.46722.50613.53861.02081.02082.10592.1059
C21.46721.50842.68222.05582.05581.09821.0982
C32.50611.50841.17432.72902.72902.11802.1180
N43.53862.68221.17433.59683.59683.19943.1994
H51.02082.05582.72903.59681.64382.41622.9581
H61.02082.05582.72903.59681.64382.95812.4162
H72.10591.09822.11803.19942.41622.95811.7717
H82.10591.09822.11803.19942.95812.41621.7717

picture of Aminoacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 114.743 N1 C2 H7 109.504
N1 C2 H8 109.504 C2 N1 H5 110.143
C2 N1 H6 110.143 C2 C3 N4 177.826
C3 C2 H7 107.654 C3 C2 H8 107.654
H5 N1 H6 107.250 H7 C2 H8 107.530
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.539      
2 C -0.128      
3 C -0.648      
4 N 0.385      
5 H 0.285      
6 H 0.285      
7 H 0.180      
8 H 0.180      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.559 1.944 0.000 2.492
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.248 7.455 0.000
y 7.455 -29.802 0.000
z 0.000 0.000 -21.271
Traceless
 xyz
x -0.711 7.455 0.000
y 7.455 -6.042 0.000
z 0.000 0.000 6.753
Polar
3z2-r213.507
x2-y23.554
xy7.455
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.835 -1.026 0.000
y -1.026 5.302 0.000
z 0.000 0.000 3.715


<r2> (average value of r2) Å2
<r2> 68.451
(<r2>)1/2 8.274