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

using model chemistry: B2PLYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at B2PLYP/TZVP
 hartrees
Energy at 0K-186.751362
Energy at 298.15K 
HF Energy-186.547113
Nuclear repulsion energy92.336622
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/TZVP
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' 3230 3083 5.20 86.28 0.58 0.73
2 A' 3103 2961 16.38 100.41 0.14 0.25
3 A' 2253 2150 25.04 180.25 0.26 0.42
4 A' 1690 1613 23.62 39.98 0.20 0.33
5 A' 1523 1454 15.22 32.26 0.38 0.55
6 A' 1245 1188 7.81 4.48 0.75 0.86
7 A' 949 905 6.68 1.22 0.10 0.19
8 A' 626 597 2.72 2.87 0.28 0.44
9 A' 252 241 6.04 10.03 0.56 0.72
10 A" 1110 1059 18.68 0.39 0.75 0.86
11 A" 778 742 1.07 5.41 0.75 0.86
12 A" 366 349 9.04 0.55 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8561.6 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 8171.2 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/TZVP
ABC
2.19133 0.18065 0.16690

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.088 -1.551 0.000
N2 -0.616 -0.486 0.000
C3 0.000 0.708 0.000
N4 0.435 1.788 0.000
H5 -0.435 -2.500 0.000
H6 1.177 -1.557 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27662.26053.35641.08311.0890
N21.27661.34362.50482.02192.0888
C32.26051.34361.16403.23702.5529
N43.35642.50481.16404.37463.4263
H51.08312.02193.23704.37461.8666
H61.08902.08882.55293.42631.8666

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 119.233 N2 C1 H5 117.695
N2 C1 H6 123.820 N2 C3 N4 174.651
H5 C1 H6 118.484
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.062      
2 N -0.092      
3 C 0.021      
4 N -0.132      
5 H 0.147      
6 H 0.118      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.549 -4.405 0.000 4.439
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.269 -2.810 -0.000
y -2.810 -24.163 0.001
z -0.000 0.001 -22.976
Traceless
 xyz
x -0.699 -2.810 -0.000
y -2.810 -0.540 0.001
z -0.000 0.001 1.240
Polar
3z2-r22.479
x2-y2-0.106
xy-2.810
xz-0.000
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.965 0.379 -0.000
y 0.379 8.396 -0.001
z -0.000 -0.001 2.766


<r2> (average value of r2) Å2
<r2> 70.603
(<r2>)1/2 8.403