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

using model chemistry: B3LYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at B3LYP/6-31G
 hartrees
Energy at 0K-186.792361
Energy at 298.15K 
HF Energy-186.792361
Nuclear repulsion energy91.198345
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 B3LYP/6-31G
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' 3242 3119 10.44 99.70 0.54 0.70
2 A' 3105 2987 16.83 103.27 0.16 0.27
3 A' 2251 2166 31.08 165.18 0.32 0.48
4 A' 1700 1636 27.83 31.16 0.26 0.41
5 A' 1543 1484 9.92 32.81 0.45 0.62
6 A' 1228 1182 5.46 5.74 0.75 0.85
7 A' 931 895 4.75 2.34 0.06 0.12
8 A' 566 544 3.31 4.86 0.47 0.64
9 A' 241 232 7.18 9.47 0.54 0.70
10 A" 1105 1063 27.88 0.06 0.75 0.86
11 A" 770 741 0.38 9.90 0.75 0.86
12 A" 336 324 7.24 1.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8509.4 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 8186.0 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 B3LYP/6-31G
ABC
2.56641 0.17019 0.15961

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.123 -1.606 0.000
N2 -0.543 -0.504 0.000
C3 0.000 0.725 0.000
N4 0.327 1.859 0.000
H5 -0.436 -2.536 0.000
H6 1.214 -1.663 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28742.33413.47061.08501.0921
N21.28741.34412.51812.03452.1048
C32.33411.34411.17983.29002.6790
N43.47062.51811.17984.46043.6320
H51.08502.03453.29004.46041.8659
H61.09212.10482.67903.63201.8659

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 124.984 N2 C1 H5 117.835
N2 C1 H6 124.189 N2 C3 N4 172.230
H5 C1 H6 117.976
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.072      
2 N -0.286      
3 C 0.209      
4 N -0.204      
5 H 0.183      
6 H 0.171      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.849 -4.361 0.000 4.443
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.677 -2.569 0.000
y -2.569 -24.088 0.000
z 0.000 0.000 -22.545
Traceless
 xyz
x -0.361 -2.569 0.000
y -2.569 -0.977 0.000
z 0.000 0.000 1.337
Polar
3z2-r22.675
x2-y20.411
xy-2.569
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.232 0.178 0.000
y 0.178 8.562 0.000
z 0.000 0.000 1.842


<r2> (average value of r2) Å2
<r2> 72.995
(<r2>)1/2 8.544