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All results from a given calculation for NH2CONH2 (Urea)

using model chemistry: QCISD(T)=FULL/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 3 yes C2V 1A1

Conformer 1 (C2)

Jump to S1C2 S1C3
Vibrational Frequencies calculated at QCISD(T)=FULL/cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)=FULL/cc-pVQZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pVQZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at QCISD(T)=FULL/cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)=FULL/cc-pVQZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pVQZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C2V)

Jump to S1C1 S1C2
Energy calculated at QCISD(T)=FULL/cc-pVQZ
 hartrees
Energy at 0K-225.129854
Energy at 298.15K 
HF Energy-224.096846
Nuclear repulsion energy124.405246
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)=FULL/cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)=FULL/cc-pVQZ
ABC
0.37839 0.35037 0.18192

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.141
O2 0.000 0.000 1.357
N3 0.000 1.152 -0.595
N4 0.000 -1.152 -0.595
H5 0.000 2.014 -0.089
H6 0.000 1.168 -1.593
H7 0.000 -2.014 -0.089
H8 0.000 -1.168 -1.593

Atom - Atom Distances (Å)
  C1 O2 N3 N4 H5 H6 H7 H8
C11.21561.36761.36762.02672.09112.02672.0911
O21.21562.26672.26672.47893.17292.47893.1729
N31.36762.26672.30480.99890.99833.20622.5260
N41.36762.26672.30483.20622.52600.99890.9983
H52.02672.47890.99893.20621.72574.02723.5193
H62.09113.17290.99832.52601.72573.51932.3360
H72.02672.47893.20620.99894.02723.51931.7257
H82.09113.17292.52600.99833.51932.33601.7257

picture of Urea state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 116.980 C1 N3 H6 123.474
C1 N4 H7 116.980 C1 N4 H8 123.474
O2 C1 N3 122.578 O2 C1 N4 122.578
N3 C1 N4 114.843 H5 N3 H6 119.547
H7 N4 H8 119.547
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability