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/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-187.893534
Energy at 298.15K-187.898232
HF Energy-187.893534
Nuclear repulsion energy102.383978
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/aug-cc-pVDZ
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' 3408 3387 2.98      
2 A' 2992 2973 10.15      
3 A' 2242 2229 4.24      
4 A' 1600 1590 21.15      
5 A' 1388 1379 7.93      
6 A' 1286 1279 8.00      
7 A' 1083 1076 12.08      
8 A' 904 898 69.50      
9 A' 818 813 85.78      
10 A' 549 546 10.37      
11 A' 203 202 9.43      
12 A" 3492 3470 5.60      
13 A" 3036 3017 1.97      
14 A" 1329 1320 0.05      
15 A" 1143 1136 0.03      
16 A" 857 852 0.00      
17 A" 374 371 11.34      
18 A" 249 248 44.03      

Unscaled Zero Point Vibrational Energy (zpe) 13475.0 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 13392.9 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 PBEPBEultrafine/aug-cc-pVDZ
ABC
0.98600 0.15724 0.14236

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.462 0.721 0.000
C2 0.000 0.834 0.000
C3 0.731 -0.453 0.000
N4 1.252 -1.506 0.000
H5 -1.774 0.189 0.820
H6 -1.774 0.189 -0.820
H7 0.317 1.414 0.887
H8 0.317 1.414 -0.887

Atom - Atom Distances (Å)
  N1 C2 C3 N4 H5 H6 H7 H8
N11.46652.48743.51011.02591.02592.10582.1058
C21.46651.47952.65302.05782.05781.10691.1069
C32.48741.47951.17462.71272.71272.10822.1082
N43.51012.65301.17463.56323.56323.19173.1917
H51.02592.05782.71273.56321.64002.42462.9646
H61.02592.05782.71273.56321.64002.96462.4246
H72.10581.10692.10823.19172.42462.96461.7746
H82.10581.10692.10823.19172.96462.42461.7746

picture of Aminoacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 115.201 N1 C2 H7 109.033
N1 C2 H8 109.033 C2 N1 H5 110.049
C2 N1 H6 110.049 C2 C3 N4 176.681
C3 C2 H7 108.333 C3 C2 H8 108.333
H5 N1 H6 106.131 H7 C2 H8 106.567
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.181      
2 C 0.895      
3 C 0.009      
4 N -0.272      
5 H -0.026      
6 H -0.026      
7 H -0.199      
8 H -0.199      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.610 2.164 0.000 2.697
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.896 6.923 0.000
y 6.923 -30.153 0.000
z 0.000 0.000 -22.172
Traceless
 xyz
x -0.734 6.923 0.000
y 6.923 -5.619 0.000
z 0.000 0.000 6.353
Polar
3z2-r212.705
x2-y23.257
xy6.923
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.570 -1.328 0.000
y -1.328 6.992 0.000
z 0.000 0.000 4.875


<r2> (average value of r2) Å2
<r2> 84.019
(<r2>)1/2 9.166