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**

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**
 hartrees
Energy at 0K-187.577843
Energy at 298.15K-187.582685
HF Energy-186.951376
Nuclear repulsion energy102.770501
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**
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' 3576 3366 0.63      
2 A' 3141 2957 13.07      
3 A' 2336 2199 0.30      
4 A' 1719 1618 24.19      
5 A' 1531 1442 3.94      
6 A' 1408 1325 14.42      
7 A' 1151 1083 13.79      
8 A' 971 914 161.36      
9 A' 868 817 46.39      
10 A' 565 532 10.51      
11 A' 210 198 13.05      
12 A" 3668 3453 2.20      
13 A" 3192 3005 6.70      
14 A" 1426 1342 0.06      
15 A" 1226 1154 0.00      
16 A" 915 861 0.30      
17 A" 398 374 18.54      
18 A" 280 264 51.07      

Unscaled Zero Point Vibrational Energy (zpe) 14289.3 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 13452.0 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 QCISD/6-31G**
ABC
1.00916 0.15704 0.14251

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.455 0.733 0.000
C2 0.000 0.835 0.000
C3 0.721 -0.466 0.000
N4 1.250 -1.508 0.000
H5 -1.762 0.209 0.813
H6 -1.762 0.209 -0.813
H7 0.317 1.399 0.877
H8 0.317 1.399 -0.877

Atom - Atom Distances (Å)
  N1 C2 C3 N4 H5 H6 H7 H8
N11.45892.48483.51281.01391.01392.08702.0870
C21.45891.48792.65592.03842.03841.09011.0901
C32.48481.48791.16842.69842.69842.10092.1009
N43.51282.65591.16843.56103.56103.17703.1770
H51.01392.03842.69843.56101.62512.39622.9313
H61.01392.03842.69843.56101.62512.93132.3962
H72.08701.09012.10093.17702.39622.93131.7542
H82.08701.09012.10093.17702.93132.39621.7542

picture of Aminoacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 114.964 N1 C2 H7 109.062
N1 C2 H8 109.062 C2 N1 H5 109.737
C2 N1 H6 109.737 C2 C3 N4 177.923
C3 C2 H7 108.165 C3 C2 H8 108.165
H5 N1 H6 106.530 H7 C2 H8 107.144
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability