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 H2CCNH (Ethenimine)

using model chemistry: CISD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.393344
Energy at 298.15K-132.395983
HF Energy-131.924333
Nuclear repulsion energy59.996606
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 CISD/6-311+G(3df,2p)
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' 3640 3355 42.74      
2 A' 3266 3011 11.57      
3 A' 2179 2008 481.14      
4 A' 1498 1381 2.49      
5 A' 1197 1104 22.97      
6 A' 1065 982 207.48      
7 A' 772 712 88.55      
8 A' 502 462 24.09      
9 A" 3366 3102 1.13      
10 A" 1040 959 0.02      
11 A" 939 865 54.38      
12 A" 435 401 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 9948.4 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 9170.4 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 CISD/6-311+G(3df,2p)
ABC
6.81492 0.32774 0.32141

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.035 -1.244 0.000
C2 0.000 0.059 0.000
N3 -0.073 1.272 0.000
H4 -0.043 -1.779 0.930
H5 -0.043 -1.779 -0.930
H6 0.811 1.758 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.30322.51631.07311.07313.1192
C21.30321.21552.06052.06051.8830
N32.51631.21553.19033.19031.0095
H41.07312.06053.19031.85983.7561
H51.07312.06053.19031.85983.7561
H63.11921.88301.00953.75613.7561

picture of Ethenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.981 C2 C1 H4 119.937
C2 C1 H5 119.937 C2 N3 H6 115.317
H4 C1 H5 120.119
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability