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 H2NCHCHNH2 (diaminoethylene)

using model chemistry: MP4=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP4=FULL/cc-pVTZ
 hartrees
Energy at 0K-189.046035
Energy at 298.15K 
HF Energy-188.163888
Nuclear repulsion energy117.755175
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 MP4=FULL/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP4=FULL/cc-pVTZ
ABC
1.44237 0.13286 0.12357

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.314 0.590 0.031
C2 -0.314 -0.590 0.031
N3 -0.314 1.850 -0.110
N4 0.314 -1.850 -0.110
H5 1.393 0.627 0.034
H6 -1.393 -0.627 0.034
H7 -1.319 1.767 -0.049
H8 1.319 -1.767 -0.049
H9 -0.005 2.499 0.600
H10 0.005 -2.499 0.600

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33651.41482.44401.08022.09682.01442.56342.01783.1563
C21.33652.44401.41482.09681.08022.56342.01443.15632.0178
N31.41482.44403.75292.10492.70611.01053.96881.01064.4184
N42.44401.41483.75292.70612.10493.96881.01054.41841.0106
H51.08022.09682.10492.70613.05632.94332.39672.40453.4674
H62.09681.08022.70612.10493.05632.39672.94333.46742.4045
H72.01442.56341.01053.96882.94332.39674.40971.63814.5138
H82.56342.01443.96881.01052.39672.94334.40974.51381.6381
H92.01783.15631.01064.41842.40453.46741.63814.51384.9984
H103.15632.01784.41841.01063.46742.40454.51381.63814.9984

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.303 C1 C2 H6 119.993
C1 N3 H7 111.222 C1 N3 H9 111.515
C2 C1 N3 125.303 C2 C1 H5 119.993
C2 N4 H8 111.222 C2 N4 H10 111.515
N3 C1 H5 114.389 N4 C2 H6 114.389
H7 N3 H9 108.292 H8 N4 H10 108.292
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability