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

using model chemistry: CCD/daug-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 CCD/daug-cc-pVDZ
 hartrees
Energy at 0K-186.377917
Energy at 298.15K 
HF Energy-185.773394
Nuclear repulsion energy91.486469
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/daug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3237 3237 4.34      
2 A' 3110 3110 12.01      
3 A' 2315 2315 18.98      
4 A' 1716 1716 15.87      
5 A' 1506 1506 12.47      
6 A' 1237 1237 8.87      
7 A' 934 934 4.58      
8 A' 629 629 2.77      
9 A' 253 253 6.23      
10 A" 1102 1102 19.53      
11 A" 779 779 0.47      
12 A" 361 361 8.79      

Unscaled Zero Point Vibrational Energy (zpe) 8588.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8588.8 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/daug-cc-pVDZ
ABC
2.03687 0.17937 0.16485

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.092 -1.550 0.000
N2 -0.647 -0.497 0.000
C3 0.000 0.713 0.000
N4 0.456 1.792 0.000
H5 -0.411 -2.522 0.000
H6 1.191 -1.523 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28662.26503.36181.09451.0996
N21.28661.37162.54032.03902.1050
C32.26501.37161.17133.26112.5334
N43.36182.54031.17134.40023.3952
H51.09452.03903.26114.40021.8885
H61.09962.10502.53343.39521.8885

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 116.839 N2 C1 H5 117.590
N2 C1 H6 123.612 N2 C3 N4 174.798
H5 C1 H6 118.798
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability