return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B2PLYP=FULL/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at B2PLYP=FULL/6-311G**
 hartrees
Energy at 0K-186.757323
Energy at 298.15K 
HF Energy-186.532047
Nuclear repulsion energy92.209419
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 B2PLYP=FULL/6-311G**
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' 3220 3220 6.37 85.72 0.59 0.74
2 A' 3095 3095 17.15 94.77 0.15 0.26
3 A' 2251 2251 19.09 156.54 0.29 0.45
4 A' 1684 1684 23.46 37.37 0.22 0.37
5 A' 1510 1510 14.51 27.58 0.43 0.61
6 A' 1233 1233 9.24 3.51 0.75 0.86
7 A' 951 951 5.95 0.95 0.05 0.09
8 A' 628 628 3.60 2.52 0.28 0.43
9 A' 252 252 5.65 8.87 0.54 0.70
10 A" 1097 1097 18.99 0.24 0.75 0.86
11 A" 781 781 1.31 5.30 0.75 0.86
12 A" 373 373 8.49 0.54 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8537.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8537.1 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 B2PLYP=FULL/6-311G**
ABC
2.16935 0.18047 0.16661

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.088 -1.551 0.000
N2 -0.620 -0.486 0.000
C3 0.000 0.708 0.000
N4 0.438 1.788 0.000
H5 -0.434 -2.503 0.000
H6 1.179 -1.555 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27922.26123.35791.08541.0908
N21.27921.34552.50842.02582.0926
C32.26121.34551.16573.24042.5518
N43.35792.50841.16574.37913.4244
H51.08542.02583.24044.37911.8705
H61.09082.09262.55183.42441.8705

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 118.945 N2 C1 H5 117.666
N2 C1 H6 123.806 N2 C3 N4 174.638
H5 C1 H6 118.528
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability