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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: PBE1PBE/6-31G(2df,p)

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 PBE1PBE/6-31G(2df,p)
Rotational Constants (cm-1) from geometry optimized at PBE1PBE/6-31G(2df,p)
See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G(2df,p)
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at PBE1PBE/6-31G(2df,p)
 hartrees
Energy at 0K-148.620433
Energy at 298.15K 
HF Energy-148.620433
Nuclear repulsion energy59.589184
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 PBE1PBE/6-31G(2df,p)
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 3672 3514 71.81      
2 A1 2393 2290 124.63      
3 A1 1615 1546 49.63      
4 A1 1152 1102 10.23      
5 B1 554 530 1.09      
6 B1 432i 413i 256.12      
7 B2 3793 3630 98.39      
8 B2 1132 1084 3.03      
9 B2 428 410 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 7153.9 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 6846.3 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 PBE1PBE/6-31G(2df,p)
ABC
11.20871 0.34187 0.33175

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G(2df,p)

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 1.379
N3 0.000 0.000 -1.105
H4 0.000 0.864 -1.614
H5 0.000 -0.864 -1.614

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.16071.32342.02572.0257
N21.16072.48413.11523.1152
N31.32342.48411.00261.0026
H42.02573.11521.00261.7276
H52.02573.11521.00261.7276

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.504 C1 N3 H5 120.504
N2 C1 N3 180.000 H4 N3 H5 118.993
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.353      
2 N -0.326      
3 N -0.648      
4 H 0.311      
5 H 0.311      


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 -4.782 4.782
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.176 0.000 0.000
y 0.000 -14.448 0.000
z 0.000 0.000 -17.199
Traceless
 xyz
x -2.353 0.000 0.000
y 0.000 3.240 0.000
z 0.000 0.000 -0.887
Polar
3z2-r2-1.774
x2-y2-3.729
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.957 0.000 0.000
y 0.000 2.363 0.000
z 0.000 0.000 4.887


<r2> (average value of r2) Å2
<r2> 39.222
(<r2>)1/2 6.263