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: B1B95/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/STO-3G
 hartrees
Energy at 0K-185.618061
Energy at 298.15K-185.622682
HF Energy-185.618061
Nuclear repulsion energy100.865385
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 B1B95/STO-3G
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' 3551 3136 8.48      
2 A' 3358 2965 0.79      
3 A' 2420 2137 13.65      
4 A' 1855 1638 8.18      
5 A' 1610 1421 4.94      
6 A' 1434 1266 6.39      
7 A' 1228 1084 19.33      
8 A' 982 867 67.88      
9 A' 895 790 26.66      
10 A' 569 502 10.87      
11 A' 206 182 9.17      
12 A" 3738 3301 3.00      
13 A" 3460 3055 2.94      
14 A" 1499 1323 1.35      
15 A" 1278 1129 0.71      
16 A" 932 823 0.05      
17 A" 405 358 17.88      
18 A" 278 245 52.12      

Unscaled Zero Point Vibrational Energy (zpe) 14848.1 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 13110.8 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 B1B95/STO-3G
ABC
0.95223 0.15300 0.13827

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.499 0.734 0.000
C2 0.000 0.855 0.000
C3 0.742 -0.453 0.000
N4 1.270 -1.521 0.000
H5 -1.730 0.117 0.826
H6 -1.730 0.117 -0.826
H7 0.305 1.431 0.894
H8 0.305 1.431 -0.894

Atom - Atom Distances (Å)
  N1 C2 C3 N4 H5 H6 H7 H8
N11.50372.53573.57131.05631.05632.13012.1301
C21.50371.50432.69472.05402.05401.10591.1059
C32.53571.50431.19152.66752.66752.13102.1310
N43.57132.69471.19153.51663.51663.23223.2322
H51.05632.05402.66753.51661.65122.42302.9702
H61.05632.05402.66753.51661.65122.97022.4230
H72.13011.10592.13103.23222.42302.97021.7874
H82.13011.10592.13103.23222.97022.42301.7874

picture of Aminoacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 114.915 N1 C2 H7 108.457
N1 C2 H8 108.457 C2 N1 H5 105.373
C2 N1 H6 105.373 C2 C3 N4 176.798
C3 C2 H7 108.489 C3 C2 H8 108.489
H5 N1 H6 102.818 H7 C2 H8 107.822
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.358      
2 C -0.079      
3 C 0.044      
4 N -0.185      
5 H 0.172      
6 H 0.172      
7 H 0.117      
8 H 0.117      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.967 1.085 0.000 1.453
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.965 6.469 0.000
y 6.469 -27.042 0.000
z 0.000 0.000 -20.293
Traceless
 xyz
x -1.297 6.469 0.000
y 6.469 -4.413 0.000
z 0.000 0.000 5.710
Polar
3z2-r211.421
x2-y22.077
xy6.469
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.751 -0.648 0.000
y -0.648 2.968 0.000
z 0.000 0.000 1.979


<r2> (average value of r2) Å2
<r2> 84.222
(<r2>)1/2 9.177