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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-186.330215
Energy at 298.15K 
HF Energy-185.744080
Nuclear repulsion energy91.522497
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' 3288 3098 6.39 75.58 0.58 0.73
2 A' 3160 2978 11.47 84.33 0.13 0.23
3 A' 2197 2070 6.09 92.29 0.30 0.47
4 A' 1698 1600 14.12 12.35 0.21 0.35
5 A' 1535 1446 9.30 25.69 0.40 0.57
6 A' 1255 1183 6.82 4.35 0.74 0.85
7 A' 950 895 6.13 0.98 0.02 0.04
8 A' 613 577 2.79 1.52 0.38 0.55
9 A' 243 229 6.28 6.94 0.55 0.71
10 A" 1099 1036 22.32 0.28 0.75 0.86
11 A" 785 739 0.73 7.66 0.75 0.86
12 A" 361 340 9.78 0.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8591.8 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 8095.2 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
2.07338 0.17904 0.16481

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 0.086 -1.553 0.000
N2 -0.640 -0.490 0.000
C3 0.000 0.705 0.000
N4 0.459 1.797 0.000
H5 -0.426 -2.511 0.000
H6 1.178 -1.547 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28702.25943.37031.08621.0916
N21.28701.35612.53762.03142.1028
C32.25941.35611.18433.24372.5415
N43.37032.53761.18434.39743.4203
H51.08622.03143.24374.39741.8711
H61.09162.10282.54153.42031.8711

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 117.466 N2 C1 H5 117.486
N2 C1 H6 124.066 N2 C3 N4 174.629
H5 C1 H6 118.448
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability