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

using model chemistry: CCD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-186.519310
Energy at 298.15K 
HF Energy-185.817558
Nuclear repulsion energy92.501332
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/aug-cc-pVTZ
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' 3235 3096 3.02      
2 A' 3116 2982 10.50      
3 A' 2348 2247 26.88      
4 A' 1735 1661 21.11      
5 A' 1519 1453 15.40      
6 A' 1251 1197 9.71      
7 A' 951 910 5.53      
8 A' 641 614 3.88      
9 A' 258 247 6.51      
10 A" 1116 1068 19.12      
11 A" 790 756 0.86      
12 A" 377 361 9.80      

Unscaled Zero Point Vibrational Energy (zpe) 8668.0 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 8295.3 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/aug-cc-pVTZ
ABC
2.09414 0.18302 0.16831

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.085 -1.536 0.000
N2 -0.638 -0.489 0.000
C3 0.000 0.709 0.000
N4 0.457 1.771 0.000
H5 -0.418 -2.496 0.000
H6 1.173 -1.515 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27302.24723.32791.08301.0880
N21.27301.35692.51042.01912.0813
C32.24721.35691.15573.23192.5146
N43.32792.51041.15574.35503.3630
H51.08302.01913.23194.35501.8685
H61.08802.08132.51463.36301.8685

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 117.375 N2 C1 H5 117.740
N2 C1 H6 123.478 N2 C3 N4 175.258
H5 C1 H6 118.782
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability