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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: PBEPBE/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2V 1A1

Conformer 1 (Cs)

Jump to S1C2
Vibrational Frequencies calculated at PBEPBE/TZVP
Rotational Constants (cm-1) from geometry optimized at PBEPBE/TZVP
See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/TZVP
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at PBEPBE/TZVP
 hartrees
Energy at 0K-148.665724
Energy at 298.15K 
HF Energy-148.665724
Nuclear repulsion energy59.156668
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 PBEPBE/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3533 3494 59.58      
2 A1 2284 2258 119.58      
3 A1 1569 1551 54.49      
4 A1 1110 1098 11.85      
5 B1 513 507 0.00      
6 B1 357i 353i 282.30      
7 B2 3643 3602 89.46      
8 B2 1102 1090 3.33      
9 B2 398 393 0.66      

Unscaled Zero Point Vibrational Energy (zpe) 6897.1 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 6819.9 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 PBEPBE/TZVP
ABC
11.02176 0.33725 0.32724

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.218
N2 0.000 0.000 1.389
N3 0.000 0.000 -1.111
H4 0.000 0.871 -1.627
H5 0.000 -0.871 -1.627

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.17121.32962.04042.0404
N21.17122.50083.13953.1395
N31.32962.50081.01221.0122
H42.04043.13951.01221.7422
H52.04043.13951.01221.7422

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.616 C1 N3 H5 120.616
N2 C1 N3 180.000 H4 N3 H5 118.768
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.022      
2 N -0.159      
3 N -0.414      
4 H 0.276      
5 H 0.276      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -4.858 4.858
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.944 0.000 0.000
y 0.000 -14.925 0.000
z 0.000 0.000 -17.952
Traceless
 xyz
x -2.506 0.000 0.000
y 0.000 3.523 0.000
z 0.000 0.000 -1.017
Polar
3z2-r2-2.033
x2-y2-4.019
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.194 0.000 0.000
y 0.000 2.412 0.000
z 0.000 0.000 5.590


<r2> (average value of r2) Å2
<r2> 40.044
(<r2>)1/2 6.328