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

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-31G**
 hartrees
Energy at 0K-186.657930
Energy at 298.15K 
HF Energy-186.657930
Nuclear repulsion energy92.327304
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 HSEh1PBE/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3232 3084 6.70 84.14 0.59 0.74
2 A' 3108 2966 13.80 89.64 0.13 0.23
3 A' 2349 2242 31.21 160.37 0.32 0.48
4 A' 1741 1662 34.47 44.26 0.26 0.41
5 A' 1514 1445 10.49 25.59 0.44 0.61
6 A' 1233 1176 9.09 4.96 0.75 0.86
7 A' 982 937 5.59 1.11 0.03 0.07
8 A' 626 597 4.41 2.99 0.33 0.49
9 A' 247 236 5.94 8.96 0.53 0.69
10 A" 1099 1049 20.04 0.09 0.75 0.86
11 A" 783 747 1.41 8.19 0.75 0.86
12 A" 372 355 9.51 0.86 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8643.1 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 8248.1 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 HSEh1PBE/6-31G**
ABC
2.23148 0.18008 0.16663

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.092 -1.553 0.000
N2 -0.607 -0.487 0.000
C3 0.000 0.707 0.000
N4 0.421 1.794 0.000
H5 -0.435 -2.506 0.000
H6 1.185 -1.568 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27542.26253.36311.08841.0934
N21.27541.33942.50142.02632.0931
C32.26251.33941.16523.24222.5650
N43.36312.50141.16524.38373.4468
H51.08842.02633.24224.38371.8724
H61.09342.09312.56503.44681.8724

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 119.801 N2 C1 H5 117.791
N2 C1 H6 123.983 N2 C3 N4 174.238
H5 C1 H6 118.226
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.033      
2 N -0.377      
3 C 0.521      
4 N -0.444      
5 H 0.170      
6 H 0.163      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.522 -4.348 0.000 4.379
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.350 -2.603 0.000
y -2.603 -23.230 0.000
z 0.000 0.000 -22.416
Traceless
 xyz
x -0.527 -2.603 0.000
y -2.603 -0.346 0.000
z 0.000 0.000 0.874
Polar
3z2-r21.747
x2-y2-0.121
xy-2.603
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.466 0.379 0.000
y 0.379 8.038 0.000
z 0.000 0.000 2.067


<r2> (average value of r2) Å2
<r2> 70.223
(<r2>)1/2 8.380