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: QCISD/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 QCISD/cc-pVDZ
 hartrees
Energy at 0K-132.333027
Energy at 298.15K-132.335556
HF Energy-131.884103
Nuclear repulsion energy58.810957
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/cc-pVDZ
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' 3478 3337 8.69      
2 A' 3202 3072 5.30      
3 A' 2109 2024 264.70      
4 A' 1449 1390 1.41      
5 A' 1151 1104 42.19      
6 A' 1080 1037 153.57      
7 A' 714 685 81.70      
8 A' 451 433 18.01      
9 A" 3308 3173 0.14      
10 A" 1007 967 0.10      
11 A" 919 882 46.51      
12 A" 401 385 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 9634.8 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9243.6 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/cc-pVDZ
ABC
6.45962 0.31508 0.30928

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.040 -1.267 0.000
C2 0.000 0.061 0.000
N3 -0.158 1.294 0.000
H4 0.065 -1.813 0.947
H5 0.065 -1.813 -0.947
H6 0.738 1.803 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.32882.56921.09311.09313.1480
C21.32881.24352.10062.10061.8913
N32.56921.24353.25613.25611.0299
H41.09312.10063.25611.89343.7975
H51.09312.10063.25611.89343.7975
H63.14801.89131.02993.79753.7975

picture of Ethenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.415 C2 C1 H4 119.990
C2 C1 H5 119.990 C2 N3 H6 112.251
H4 C1 H5 120.012
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability