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

using model chemistry: CCSD=FULL/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 CCSD=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-186.474922
Energy at 298.15K 
HF Energy-185.768471
Nuclear repulsion energy92.528119
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 CCSD=FULL/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' 3266 3076 3.90      
2 A' 3148 2964 9.17      
3 A' 2361 2223 22.36      
4 A' 1732 1631 28.55      
5 A' 1526 1437 13.39      
6 A' 1253 1180 8.80      
7 A' 955 899 5.36      
8 A' 655 617 5.51      
9 A' 266 251 6.19      
10 A" 1116 1051 16.81      
11 A" 806 759 1.77      
12 A" 427 402 10.81      

Unscaled Zero Point Vibrational Energy (zpe) 8756.2 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 8244.8 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 CCSD=FULL/6-31G(2df,p)
ABC
2.10412 0.18300 0.16836

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.077 -1.538 0.000
N2 -0.636 -0.482 0.000
C3 0.000 0.709 0.000
N4 0.465 1.769 0.000
H5 -0.432 -2.495 0.000
H6 1.165 -1.532 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27402.24803.32921.08371.0882
N21.27401.35042.50612.02262.0852
C32.24801.35041.15753.23232.5260
N43.32922.50611.15754.35663.3743
H51.08372.02263.23234.35661.8646
H61.08822.08522.52603.37431.8646

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 117.838 N2 C1 H5 117.935
N2 C1 H6 123.760 N2 C3 N4 175.600
H5 C1 H6 118.305
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability