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

using model chemistry: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-186.795501
Energy at 298.15K 
HF Energy-186.795501
Nuclear repulsion energy92.068947
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 B3PW91/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' 3208 3096 4.77      
2 A' 3079 2972 13.72      
3 A' 2321 2239 27.50      
4 A' 1714 1654 29.75      
5 A' 1478 1426 9.98      
6 A' 1210 1168 10.39      
7 A' 971 937 5.23      
8 A' 625 603 3.96      
9 A' 251 242 5.07      
10 A" 1079 1041 17.58      
11 A" 776 749 1.19      
12 A" 372 359 7.28      

Unscaled Zero Point Vibrational Energy (zpe) 8541.1 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 8242.2 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 B3PW91/cc-pVDZ
ABC
2.21739 0.17921 0.16581

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.096 -1.557 0.000
N2 -0.608 -0.489 0.000
C3 0.000 0.708 0.000
N4 0.417 1.799 0.000
H5 -0.435 -2.516 0.000
H6 1.197 -1.569 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.27902.26683.37121.09621.1013
N21.27901.34232.50692.03442.1033
C32.26681.34231.16803.25312.5723
N43.37122.50691.16804.39833.4571
H51.09622.03443.25314.39831.8870
H61.10132.10332.57233.45711.8870

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 119.693 N2 C1 H5 117.647
N2 C1 H6 124.005 N2 C3 N4 173.982
H5 C1 H6 118.348
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.083      
2 N -0.170      
3 C 0.084      
4 N -0.155      
5 H 0.082      
6 H 0.076      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.451 -4.255 0.000 4.279
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.251 -2.421 0.000
y -2.421 -23.198 0.000
z 0.000 0.000 -22.412
Traceless
 xyz
x -0.447 -2.421 0.000
y -2.421 -0.366 0.000
z 0.000 0.000 0.812
Polar
3z2-r21.625
x2-y2-0.054
xy-2.421
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.535 0.312 0.000
y 0.312 8.091 0.000
z 0.000 0.000 2.256


<r2> (average value of r2) Å2
<r2> 70.487
(<r2>)1/2 8.396