return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G*
 hartrees
Energy at 0K-186.638442
Energy at 298.15K 
HF Energy-186.638442
Nuclear repulsion energy92.319612
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 PBE1PBE/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' 3246 3085 6.97 83.02 0.58 0.74
2 A' 3126 2971 14.45 87.41 0.14 0.24
3 A' 2352 2235 31.76 158.69 0.31 0.48
4 A' 1747 1660 35.29 42.79 0.26 0.41
5 A' 1524 1448 10.44 26.00 0.44 0.61
6 A' 1239 1178 8.73 5.08 0.75 0.86
7 A' 983 934 5.64 1.09 0.03 0.07
8 A' 626 595 4.32 2.94 0.33 0.49
9 A' 247 235 5.99 8.90 0.53 0.69
10 A" 1098 1043 20.78 0.10 0.75 0.86
11 A" 783 744 1.42 8.32 0.75 0.86
12 A" 372 353 9.49 0.87 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8671.5 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 8240.5 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 PBE1PBE/6-31G*
ABC
2.22228 0.18019 0.16668

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.091 -1.552 0.000
N2 -0.609 -0.487 0.000
C3 0.000 0.707 0.000
N4 0.423 1.793 0.000
H5 -0.435 -2.505 0.000
H6 1.185 -1.566 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27542.26143.36161.08871.0936
N21.27541.34022.50232.02632.0937
C32.26141.34021.16533.24192.5635
N43.36162.50231.16534.38313.4440
H51.08872.02633.24194.38311.8727
H61.09362.09372.56353.44401.8727

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 119.655 N2 C1 H5 117.768
N2 C1 H6 124.028 N2 C3 N4 174.282
H5 C1 H6 118.203
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.134      
2 N -0.363      
3 C 0.519      
4 N -0.442      
5 H 0.214      
6 H 0.206      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.525 -4.354 0.000 4.386
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.366 -2.618 0.000
y -2.618 -23.208 0.000
z 0.000 0.000 -22.447
Traceless
 xyz
x -0.538 -2.618 0.000
y -2.618 -0.302 0.000
z 0.000 0.000 0.840
Polar
3z2-r21.681
x2-y2-0.157
xy-2.618
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.445 0.383 0.000
y 0.383 7.979 0.000
z 0.000 0.000 2.041


<r2> (average value of r2) Å2
<r2> 70.211
(<r2>)1/2 8.379