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: HSEh1PBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/6-31G**
 hartrees
Energy at 0K-187.894690
Energy at 298.15K-187.899534
HF Energy-187.894690
Nuclear repulsion energy103.323309
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 HSEh1PBE/6-31G**
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' 3553 3390 2.15      
2 A' 3086 2945 10.45      
3 A' 2384 2275 3.26      
4 A' 1683 1606 26.18      
5 A' 1471 1404 8.18      
6 A' 1368 1305 8.79      
7 A' 1140 1088 12.46      
8 A' 941 898 118.48      
9 A' 856 817 101.40      
10 A' 580 553 10.94      
11 A' 215 205 12.04      
12 A" 3645 3479 5.94      
13 A" 3133 2989 3.36      
14 A" 1394 1330 0.03      
15 A" 1198 1143 0.05      
16 A" 897 856 0.03      
17 A" 409 390 15.57      
18 A" 280 267 54.42      

Unscaled Zero Point Vibrational Energy (zpe) 14116.0 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 13470.9 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 HSEh1PBE/6-31G**
ABC
1.01098 0.15948 0.14457

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.446 0.723 0.000
C2 0.000 0.827 0.000
C3 0.723 -0.459 0.000
N4 1.238 -1.497 0.000
H5 -1.761 0.207 0.815
H6 -1.761 0.207 -0.815
H7 0.322 1.399 0.876
H8 0.322 1.399 -0.876

Atom - Atom Distances (Å)
  N1 C2 C3 N4 H5 H6 H7 H8
N11.44982.46953.48321.01421.01422.08632.0863
C21.44981.47452.63322.03652.03651.09521.0952
C32.46951.47451.15962.69682.69682.09262.0926
N43.48322.63321.15963.54383.54383.16163.1616
H51.01422.03652.69683.54381.62932.40072.9358
H61.01422.03652.69683.54381.62932.93582.4007
H72.08631.09522.09263.16162.40072.93581.7526
H82.08631.09522.09263.16162.93582.40071.7526

picture of Aminoacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 115.234 N1 C2 H7 109.330
N1 C2 H8 109.330 C2 N1 H5 110.227
C2 N1 H6 110.227 C2 C3 N4 177.034
C3 C2 H7 108.140 C3 C2 H8 108.140
H5 N1 H6 106.874 H7 C2 H8 106.291
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.609      
2 C -0.180      
3 C 0.322      
4 N -0.469      
5 H 0.276      
6 H 0.276      
7 H 0.192      
8 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.588 1.937 0.000 2.505
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.789 6.903 0.000
y 6.903 -29.265 0.000
z 0.000 0.000 -21.336
Traceless
 xyz
x -0.488 6.903 0.000
y 6.903 -5.703 0.000
z 0.000 0.000 6.191
Polar
3z2-r212.382
x2-y23.476
xy6.903
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.691 -0.972 0.000
y -0.972 5.142 0.000
z 0.000 0.000 3.564


<r2> (average value of r2) Å2
<r2> 82.387
(<r2>)1/2 9.077