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

using model chemistry: CCD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at CCD/6-31G(2df,p)
 hartrees
Energy at 0K-186.435270
Energy at 298.15K 
HF Energy-185.768112
Nuclear repulsion energy92.357745
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 CCD/6-31G(2df,p)
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' 3264 3092 3.73      
2 A' 3146 2980 7.47      
3 A' 2368 2243 18.49      
4 A' 1744 1652 21.45      
5 A' 1526 1445 11.51      
6 A' 1255 1189 8.68      
7 A' 953 902 4.98      
8 A' 643 609 5.09      
9 A' 258 244 6.27      
10 A" 1118 1059 18.01      
11 A" 797 755 1.16      
12 A" 386 365 11.16      

Unscaled Zero Point Vibrational Energy (zpe) 8728.7 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 8267.9 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 CCD/6-31G(2df,p)
ABC
2.08787 0.18248 0.16781

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.083 -1.538 0.000
N2 -0.639 -0.488 0.000
C3 0.000 0.709 0.000
N4 0.460 1.773 0.000
H5 -0.421 -2.499 0.000
H6 1.173 -1.524 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27482.24933.33291.08521.0895
N21.27481.35712.51392.02322.0870
C32.24931.35711.15903.23622.5226
N43.33292.51391.15904.36233.3734
H51.08522.02323.23624.36231.8683
H61.08952.08702.52263.37341.8683

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 117.405 N2 C1 H5 117.808
N2 C1 H6 123.758 N2 C3 N4 175.292
H5 C1 H6 118.434
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability