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

using model chemistry: B2PLYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at B2PLYP/3-21G*
 hartrees
Energy at 0K-185.581000
Energy at 298.15K 
HF Energy-185.438824
Nuclear repulsion energy91.163418
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 B2PLYP/3-21G*
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 3235 11.92 85.43 0.54 0.70
2 A' 3110 3110 14.61 85.21 0.15 0.27
3 A' 2197 2197 9.41 107.71 0.32 0.48
4 A' 1660 1660 18.83 11.10 0.26 0.41
5 A' 1544 1544 16.32 36.99 0.40 0.57
6 A' 1243 1243 3.94 5.40 0.74 0.85
7 A' 889 889 3.96 1.51 0.04 0.07
8 A' 611 611 3.04 2.56 0.45 0.62
9 A' 260 260 6.93 8.50 0.53 0.69
10 A" 1115 1115 28.44 0.00 0.75 0.86
11 A" 797 797 0.55 10.24 0.75 0.86
12 A" 400 400 6.50 0.97 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8531.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8531.5 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 B2PLYP/3-21G*
ABC
2.35275 0.17249 0.16071

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.100 -1.592 0.000
N2 -0.583 -0.498 0.000
C3 0.000 0.724 0.000
N4 0.390 1.837 0.000
H5 -0.440 -2.530 0.000
H6 1.189 -1.639 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28962.31813.44101.08301.0894
N21.28961.35432.53002.03722.1072
C32.31811.35431.17933.28412.6451
N43.44102.53001.17934.44563.5662
H51.08302.03723.28414.44561.8569
H61.08942.10722.64513.56621.8569

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 122.491 N2 C1 H5 118.060
N2 C1 H6 124.475 N2 C3 N4 173.827
H5 C1 H6 117.465
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.093      
2 N -0.491      
3 C 0.536      
4 N -0.398      
5 H 0.233      
6 H 0.213      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.755 -4.019 0.000 4.089
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.824 -2.589 -0.000
y -2.589 -23.694 -0.001
z -0.000 -0.001 -22.685
Traceless
 xyz
x -0.635 -2.589 -0.000
y -2.589 -0.439 -0.001
z -0.000 -0.001 1.074
Polar
3z2-r22.147
x2-y2-0.131
xy-2.589
xz-0.000
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.946 0.251 0.000
y 0.251 7.528 -0.001
z 0.000 -0.001 1.602


<r2> (average value of r2) Å2
<r2> 72.526
(<r2>)1/2 8.516