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

using model chemistry: MP2=FULL/6-31G

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/6-31G
 hartrees
Energy at 0K-186.063430
Energy at 298.15K 
HF Energy-185.639028
Nuclear repulsion energy89.720029
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/6-31G
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' 3271 3108 11.27 86.83 0.54 0.70
2 A' 3129 2973 16.63 100.21 0.14 0.25
3 A' 2065 1962 4.42 59.56 0.30 0.46
4 A' 1643 1561 7.33 3.71 0.66 0.79
5 A' 1521 1445 9.91 21.83 0.37 0.54
6 A' 1246 1184 4.16 4.96 0.72 0.84
7 A' 864 821 4.49 1.84 0.05 0.09
8 A' 564 536 1.40 2.09 0.54 0.70
9 A' 225 213 7.08 6.67 0.56 0.72
10 A" 1096 1041 29.55 0.46 0.75 0.86
11 A" 768 730 0.06 8.38 0.75 0.86
12 A" 271 257 7.98 0.68 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8331.4 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 7915.7 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/6-31G
ABC
2.30303 0.16693 0.15565

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.144 -1.612 0.000
N2 -0.583 -0.526 0.000
C3 0.000 0.725 0.000
N4 0.338 1.884 0.000
H5 -0.382 -2.563 0.000
H6 1.237 -1.625 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.30722.34193.50131.08631.0937
N21.30721.38022.57942.04692.1266
C32.34191.38021.20673.31012.6561
N43.50132.57941.20674.50433.6222
H51.08632.04693.31014.50431.8714
H61.09372.12662.65613.62221.8714

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 121.231 N2 C1 H5 117.260
N2 C1 H6 124.452 N2 C3 N4 171.264
H5 C1 H6 118.288
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability