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: QCISD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-187.675821
Energy at 298.15K-187.680686
HF Energy-186.965336
Nuclear repulsion energy103.069640
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 QCISD/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3558 3371 2.90      
2 A' 3118 2954 8.72      
3 A' 2344 2221 0.06      
4 A' 1704 1614 23.79      
5 A' 1506 1427 5.06      
6 A' 1393 1320 12.17      
7 A' 1147 1086 12.85      
8 A' 968 917 145.82      
9 A' 864 819 40.96      
10 A' 575 545 7.00      
11 A' 221 209 13.78      
12 A" 3641 3450 6.56      
13 A" 3164 2998 2.83      
14 A" 1417 1342 0.02      
15 A" 1217 1153 0.03      
16 A" 909 861 0.01      
17 A" 401 380 8.06      
18 A" 278 264 53.73      

Unscaled Zero Point Vibrational Energy (zpe) 14211.7 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 13464.2 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 QCISD/6-31G(2df,p)
ABC
1.01286 0.15813 0.14347

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.454 0.728 0.000
C2 0.000 0.831 0.000
C3 0.718 -0.466 0.000
N4 1.249 -1.498 0.000
H5 -1.758 0.200 0.810
H6 -1.758 0.200 -0.810
H7 0.321 1.397 0.878
H8 0.321 1.397 -0.878

Atom - Atom Distances (Å)
  N1 C2 C3 N4 H5 H6 H7 H8
N11.45762.47903.50151.01371.01372.08992.0899
C21.45761.48292.64272.03592.03591.09211.0921
C32.47901.48291.16012.68932.68932.09692.0969
N43.50152.64271.16013.54683.54683.16353.1635
H51.01372.03592.68933.54681.62042.39962.9329
H61.01372.03592.68933.54681.62042.93292.3996
H72.08991.09212.09693.16352.39962.93291.7552
H82.08991.09212.09693.16352.93292.39961.7552

picture of Aminoacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 114.925 N1 C2 H7 109.256
N1 C2 H8 109.256 C2 N1 H5 109.625
C2 N1 H6 109.625 C2 C3 N4 178.233
C3 C2 H7 108.082 C3 C2 H8 108.082
H5 N1 H6 106.110 H7 C2 H8 106.941
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability