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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: CCSD(T)/aug-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 CCSD(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-188.999275
Energy at 298.15K 
HF Energy-188.167116
Nuclear repulsion energy117.274289
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(T)/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD(T)/aug-cc-pVTZ
ABC
1.42547 0.13197 0.12265

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.317 0.591 0.032
C2 -0.317 -0.591 0.032
N3 -0.317 1.856 -0.110
N4 0.317 -1.856 -0.110
H5 1.403 0.632 0.032
H6 -1.403 -0.632 0.032
H7 -1.326 1.777 -0.051
H8 1.326 -1.777 -0.051
H9 -0.005 2.513 0.595
H10 0.005 -2.513 0.595

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34101.42162.45061.08662.11022.02782.57562.02833.1698
C21.34102.45061.42162.11021.08662.57562.02783.16982.0283
N31.42162.45063.76492.11492.71821.01353.98751.01314.4366
N42.45061.42163.76492.71822.11493.98751.01354.43661.0131
H51.08662.11022.11492.71823.07712.95992.41242.41553.4877
H62.11021.08662.71822.11493.07712.41242.95993.48772.4155
H72.02782.57561.01353.98752.95992.41244.43461.64394.5380
H82.57562.02783.98751.01352.41242.95994.43464.53801.6439
H92.02833.16981.01314.43662.41553.48771.64394.53805.0258
H103.16982.02834.43661.01313.48772.41554.53801.64395.0258

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 124.985 C1 C2 H6 120.383
C1 N3 H7 111.669 C1 N3 H9 111.732
C2 C1 N3 124.985 C2 C1 H5 120.383
C2 N4 H8 111.669 C2 N4 H10 111.732
N3 C1 H5 114.296 N4 C2 H6 114.296
H7 N3 H9 108.424 H8 N4 H10 108.424
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability