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

using model chemistry: B2PLYP=FULLultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at B2PLYP=FULLultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-186.809167
Energy at 298.15K 
HF Energy-186.555143
Nuclear repulsion energy92.461041
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=FULLultrafine/aug-cc-pVTZ
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' 3215 3083 3.23 81.49 0.57 0.72
2 A' 3099 2972 16.17 104.05 0.10 0.18
3 A' 2247 2155 26.65 217.90 0.23 0.37
4 A' 1686 1617 23.56 51.97 0.19 0.32
5 A' 1509 1447 16.68 27.07 0.35 0.52
6 A' 1233 1182 10.53 2.73 0.66 0.79
7 A' 952 914 6.29 2.06 0.08 0.15
8 A' 630 604 4.32 4.18 0.14 0.25
9 A' 254 243 6.09 8.30 0.45 0.62
10 A" 1105 1060 18.55 0.92 0.75 0.86
11 A" 782 750 1.18 1.73 0.75 0.86
12 A" 373 358 8.45 0.20 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8541.8 cm-1
Scaled (by 0.9591) Zero Point Vibrational Energy (zpe) 8192.4 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=FULLultrafine/aug-cc-pVTZ
ABC
2.22942 0.18062 0.16708

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVTZ

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 0.708 0.000
N4 0.424 1.790 0.000
H5 -0.432 -2.499 0.000
H6 1.178 -1.555 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27492.26143.35821.08161.0868
N21.27491.34032.49962.02022.0821
C32.26141.34031.16233.23532.5511
N43.35822.49961.16234.37313.4289
H51.08162.02023.23534.37311.8657
H61.08682.08212.55113.42891.8657

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 119.681 N2 C1 H5 117.799
N2 C1 H6 123.478 N2 C3 N4 174.389
H5 C1 H6 118.723
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.597      
2 N -0.017      
3 C 0.043      
4 N -0.355      
5 H 0.453      
6 H 0.472      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.446 -4.488 0.000 4.510
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.128 -2.745 -0.001
y -2.745 -24.047 -0.000
z -0.001 -0.000 -23.063
Traceless
 xyz
x -0.573 -2.745 -0.001
y -2.745 -0.452 -0.000
z -0.001 -0.000 1.024
Polar
3z2-r22.049
x2-y2-0.081
xy-2.745
xz-0.001
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.628 0.345 0.000
y 0.345 8.787 -0.000
z 0.000 -0.000 3.677


<r2> (average value of r2) Å2
<r2> 70.506
(<r2>)1/2 8.397