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

using model chemistry: B2PLYP=FULLultrafine/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-186.695369
Energy at 298.15K 
HF Energy-186.498441
Nuclear repulsion energy91.699738
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/cc-pVDZ
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' 3234 3098 5.41 90.00 0.59 0.74
2 A' 3103 2973 13.48 98.98 0.13 0.23
3 A' 2247 2153 15.48 144.43 0.29 0.45
4 A' 1685 1615 23.79 35.51 0.24 0.39
5 A' 1489 1427 11.30 25.51 0.44 0.61
6 A' 1222 1171 9.48 3.69 0.75 0.86
7 A' 950 911 4.89 0.94 0.02 0.04
8 A' 620 594 3.07 2.34 0.24 0.39
9 A' 249 239 4.96 8.20 0.53 0.69
10 A" 1084 1038 16.59 0.10 0.75 0.86
11 A" 776 744 0.75 6.19 0.75 0.86
12 A" 367 351 7.11 0.53 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8512.9 cm-1
Scaled (by 0.9582) Zero Point Vibrational Energy (zpe) 8157.1 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 B2PLYP=FULLultrafine/cc-pVDZ
ABC
2.11451 0.17920 0.16520

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.091 -1.554 0.000
N2 -0.629 -0.490 0.000
C3 0.000 0.708 0.000
N4 0.442 1.797 0.000
H5 -0.429 -2.517 0.000
H6 1.191 -1.550 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28512.26353.36901.09451.0998
N21.28511.35302.52542.03692.1064
C32.26351.35301.17543.25312.5522
N43.36902.52541.17544.40083.4290
H51.09452.03693.25314.40081.8868
H61.09982.10642.55223.42901.8868

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 118.162 N2 C1 H5 117.517
N2 C1 H6 123.882 N2 C3 N4 174.375
H5 C1 H6 118.601
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.106      
2 N -0.153      
3 C 0.036      
4 N -0.118      
5 H 0.068      
6 H 0.062      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.440 -4.154 0.000 4.177
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.634 -2.515 -0.000
y -2.515 -23.439 0.000
z -0.000 0.000 -22.609
Traceless
 xyz
x -0.610 -2.515 -0.000
y -2.515 -0.318 0.000
z -0.000 0.000 0.928
Polar
3z2-r21.856
x2-y2-0.195
xy-2.515
xz-0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.557 0.317 0.000
y 0.317 7.835 -0.001
z 0.000 -0.001 2.244


<r2> (average value of r2) Å2
<r2> 70.809
(<r2>)1/2 8.415