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: CCSD/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 CCSD/cc-pVDZ
 hartrees
Energy at 0K-132.331641
Energy at 298.15K-132.334176
HF Energy-131.884267
Nuclear repulsion energy58.847628
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 CCSD/cc-pVDZ
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' 3475 3292 8.52      
2 A' 3204 3035 5.18      
3 A' 2117 2005 265.26      
4 A' 1451 1375 1.29      
5 A' 1155 1094 41.31      
6 A' 1084 1027 150.93      
7 A' 719 681 81.26      
8 A' 452 428 17.97      
9 A" 3309 3135 0.15      
10 A" 1009 956 0.11      
11 A" 924 875 46.37      
12 A" 402 381 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 9650.4 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 9141.8 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 CCSD/cc-pVDZ
ABC
6.45399 0.31554 0.30974

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.013 -1.267 0.000
C2 0.000 0.061 0.000
N3 -0.131 1.297 0.000
H4 0.028 -1.813 0.947
H5 0.028 -1.813 -0.947
H6 0.778 1.782 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.32802.56741.09301.09303.1435
C21.32801.24232.09982.09981.8888
N32.56741.24233.25433.25431.0302
H41.09302.09983.25431.89323.7928
H51.09302.09983.25431.89323.7928
H63.14351.88881.03023.79283.7928

picture of Ethenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.549 C2 C1 H4 119.990
C2 C1 H5 119.990 C2 N3 H6 112.099
H4 C1 H5 120.013
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability