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All results from a given calculation for H2CNCN (cyanamide, methylene)

using model chemistry: MP2=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-186.343570
Energy at 298.15K 
HF Energy-185.759341
Nuclear repulsion energy91.182932
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 MP2=FULL/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' 3272 3110 5.18 83.25 0.59 0.74
2 A' 3137 2982 11.73 96.95 0.12 0.22
3 A' 2170 2063 3.98 99.87 0.28 0.44
4 A' 1674 1591 10.64 18.07 0.21 0.35
5 A' 1497 1422 8.64 23.32 0.42 0.59
6 A' 1228 1167 8.72 2.95 0.73 0.84
7 A' 942 895 5.22 1.05 0.02 0.03
8 A' 608 578 2.12 1.31 0.28 0.44
9 A' 244 232 5.03 6.73 0.55 0.71
10 A" 1083 1029 19.04 0.07 0.75 0.86
11 A" 778 740 0.41 5.59 0.75 0.86
12 A" 356 338 7.09 0.38 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8494.5 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 8073.1 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 MP2=FULL/cc-pVDZ
ABC
2.01788 0.17864 0.16412

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.089 -1.552 0.000
N2 -0.651 -0.493 0.000
C3 0.000 0.704 0.000
N4 0.464 1.799 0.000
H5 -0.419 -2.523 0.000
H6 1.190 -1.532 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.29202.25863.37251.09551.1009
N21.29201.36292.54892.04302.1134
C32.25861.36291.18903.25452.5332
N43.37252.54891.18904.41143.4093
H51.09552.04303.25454.41141.8895
H61.10092.11342.53323.40931.8895

picture of cyanamide, methylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 116.555 N2 C1 H5 117.437
N2 C1 H6 123.864 N2 C3 N4 174.456
H5 C1 H6 118.698
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability