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: MP2/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/CEP-121G*
 hartrees
Energy at 0K-33.236570
Energy at 298.15K-33.241346
HF Energy-32.650780
Nuclear repulsion energy55.457482
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 MP2/CEP-121G*
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' 3510 3345 1.20      
2 A' 3119 2972 12.93      
3 A' 2127 2027 4.27      
4 A' 1727 1646 35.16      
5 A' 1512 1441 7.47      
6 A' 1385 1320 15.88      
7 A' 1133 1080 20.10      
8 A' 974 928 183.62      
9 A' 859 819 25.23      
10 A' 551 525 13.51      
11 A' 202 192 11.51      
12 A" 3611 3440 3.72      
13 A" 3182 3032 5.44      
14 A" 1412 1345 0.18      
15 A" 1212 1155 0.00      
16 A" 905 862 0.56      
17 A" 379 361 30.11      
18 A" 266 253 43.64      

Unscaled Zero Point Vibrational Energy (zpe) 14032.8 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 13370.4 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 MP2/CEP-121G*
ABC
0.98311 0.15512 0.14050

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.468 0.731 0.000
C2 0.000 0.847 0.000
C3 0.730 -0.459 0.000
N4 1.257 -1.523 0.000
H5 -1.763 0.197 0.818
H6 -1.763 0.197 -0.818
H7 0.311 1.412 0.883
H8 0.311 1.412 -0.883

Atom - Atom Distances (Å)
  N1 C2 C3 N4 H5 H6 H7 H8
N11.47242.49923.53571.02041.02042.09972.0997
C21.47241.49592.68192.04952.04951.09351.0935
C32.49921.49591.18692.70512.70512.11062.1106
N43.53572.68191.18693.57073.57073.20683.2068
H51.02042.04952.70513.57071.63622.40502.9449
H61.02042.04952.70513.57071.63622.94492.4050
H72.09971.09352.11063.20682.40502.94491.7655
H82.09971.09352.11063.20682.94492.40501.7655

picture of Aminoacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 114.699 N1 C2 H7 108.940
N1 C2 H8 108.940 C2 N1 H5 109.266
C2 N1 H6 109.266 C2 C3 N4 177.138
C3 C2 H7 108.188 C3 C2 H8 108.188
H5 N1 H6 106.599 H7 C2 H8 107.667
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability