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: PBEPBEultrafine/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 PBEPBEultrafine/6-31G**
 hartrees
Energy at 0K-187.868422
Energy at 298.15K-187.873171
HF Energy-187.868422
Nuclear repulsion energy102.481913
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/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' 3418 3371 0.48      
2 A' 2994 2953 11.08      
3 A' 2264 2233 3.13      
4 A' 1631 1609 21.33      
5 A' 1421 1402 7.65      
6 A' 1316 1298 7.28      
7 A' 1095 1080 15.11      
8 A' 907 894 106.03      
9 A' 835 823 85.51      
10 A' 554 546 10.61      
11 A' 205 202 9.57      
12 A" 3507 3459 1.97      
13 A" 3037 2996 3.70      
14 A" 1350 1331 0.10      
15 A" 1159 1143 0.09      
16 A" 869 857 0.02      
17 A" 398 393 20.05      
18 A" 270 266 46.60      

Unscaled Zero Point Vibrational Energy (zpe) 13613.5 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 13427.0 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/6-31G**
ABC
0.98142 0.15789 0.14274

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.461 0.720 0.000
C2 0.000 0.836 0.000
C3 0.734 -0.449 0.000
N4 1.243 -1.507 0.000
H5 -1.757 0.177 0.818
H6 -1.757 0.177 -0.818
H7 0.316 1.418 0.883
H8 0.316 1.418 -0.883

Atom - Atom Distances (Å)
  N1 C2 C3 N4 H5 H6 H7 H8
N11.46572.48723.50341.02511.02512.10362.1036
C21.46571.48002.65282.04672.04671.10391.1039
C32.48721.48001.17452.69562.69562.10742.1074
N43.50342.65281.17453.53633.53633.19373.1937
H51.02512.04672.69563.53631.63582.41662.9545
H61.02512.04672.69563.53631.63582.95452.4166
H72.10361.10392.10743.19372.41662.95451.7662
H82.10361.10392.10743.19372.95452.41661.7662

picture of Aminoacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 115.206 N1 C2 H7 109.089
N1 C2 H8 109.089 C2 N1 H5 109.233
C2 N1 H6 109.233 C2 C3 N4 175.916
C3 C2 H7 108.417 C3 C2 H8 108.417
H5 N1 H6 105.848 H7 C2 H8 106.251
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.561      
2 C -0.186      
3 C 0.322      
4 N -0.457      
5 H 0.262      
6 H 0.262      
7 H 0.179      
8 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.563 1.877 0.000 2.443
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.868 6.775 0.000
y 6.775 -29.077 0.000
z 0.000 0.000 -21.464
Traceless
 xyz
x -0.597 6.775 0.000
y 6.775 -5.411 0.000
z 0.000 0.000 6.008
Polar
3z2-r212.017
x2-y23.209
xy6.775
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.990 -1.084 0.000
y -1.084 5.406 0.000
z 0.000 0.000 3.665


<r2> (average value of r2) Å2
<r2> 83.196
(<r2>)1/2 9.121