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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G**
 hartrees
Energy at 0K-186.642916
Energy at 298.15K 
HF Energy-186.642916
Nuclear repulsion energy91.405962
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 PBEPBEultrafine/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' 3137 3094 8.24 91.85 0.58 0.73
2 A' 3013 2972 16.62 98.78 0.14 0.24
3 A' 2219 2188 15.24 149.04 0.33 0.49
4 A' 1653 1630 20.94 36.67 0.26 0.41
5 A' 1466 1446 6.74 27.31 0.44 0.61
6 A' 1185 1169 8.10 5.17 0.74 0.85
7 A' 949 936 5.11 2.31 0.07 0.13
8 A' 593 585 3.36 3.73 0.33 0.49
9 A' 237 234 4.98 8.91 0.52 0.68
10 A" 1032 1018 20.93 0.13 0.75 0.86
11 A" 753 743 0.89 7.23 0.75 0.86
12 A" 345 340 7.31 1.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8290.5 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 8177.0 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 PBEPBEultrafine/6-31G**
ABC
2.28852 0.17518 0.16272

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.114 -1.577 0.000
N2 -0.590 -0.496 0.000
C3 0.000 0.709 0.000
N4 0.379 1.829 0.000
H5 -0.423 -2.533 0.000
H6 1.216 -1.597 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28982.28883.41601.09671.1021
N21.28981.34222.51932.04352.1152
C32.28881.34221.18233.26962.6071
N43.41602.51931.18234.43513.5266
H51.09672.04353.26964.43511.8874
H61.10212.11522.60713.52661.8874

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 120.811 N2 C1 H5 117.580
N2 C1 H6 124.148 N2 C3 N4 172.625
H5 C1 H6 118.272
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.034      
2 N -0.341      
3 C 0.500      
4 N -0.431      
5 H 0.155      
6 H 0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.515 -4.153 0.000 4.185
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.157 -2.338 0.000
y -2.338 -23.387 0.000
z 0.000 0.000 -22.410
Traceless
 xyz
x -0.259 -2.338 0.000
y -2.338 -0.603 0.000
z 0.000 0.000 0.862
Polar
3z2-r21.725
x2-y20.229
xy-2.338
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.521 0.351 0.000
y 0.351 8.558 0.000
z 0.000 0.000 2.096


<r2> (average value of r2) Å2
<r2> 71.578
(<r2>)1/2 8.460