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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: QCISD(T)/daug-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 QCISD(T)/daug-cc-pVTZ
 hartrees
Energy at 0K-189.001416
Energy at 298.15K 
HF Energy-188.167264
Nuclear repulsion energy117.258564
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(T)/daug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/daug-cc-pVTZ
ABC
1.42416 0.13197 0.12264

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/daug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.317 0.591 0.033
C2 -0.317 -0.591 0.033
N3 -0.317 1.855 -0.110
N4 0.317 -1.855 -0.110
H5 1.403 0.632 0.033
H6 -1.403 -0.632 0.033
H7 -1.326 1.777 -0.050
H8 1.326 -1.777 -0.050
H9 -0.003 2.514 0.592
H10 0.003 -2.514 0.592

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34131.42192.45071.08682.11082.02782.57502.02863.1709
C21.34132.45071.42192.11081.08682.57502.02783.17092.0286
N31.42192.45073.76482.11542.71841.01363.98701.01334.4377
N42.45071.42193.76482.71842.11543.98701.01364.43771.0133
H51.08682.11082.11542.71843.07802.96022.41192.41523.4893
H62.11081.08682.71842.11543.07802.41192.96023.48932.4152
H72.02782.57501.01363.98702.96022.41194.43381.64504.5380
H82.57502.02783.98701.01362.41192.96024.43384.53801.6450
H92.02863.17091.01334.43772.41523.48931.64504.53805.0288
H103.17092.02864.43771.01333.48932.41524.53801.64505.0288

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 124.944 C1 C2 H6 120.405
C1 N3 H7 111.638 C1 N3 H9 111.728
C2 C1 N3 124.944 C2 C1 H5 120.405
C2 N4 H8 111.638 C2 N4 H10 111.728
N3 C1 H5 114.310 N4 C2 H6 114.310
H7 N3 H9 108.500 H8 N4 H10 108.500
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability