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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
1 2 no C2V 1A1

Conformer 1 (Cs)

Jump to S1C2
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-148.759817
Energy at 298.15K-148.762107
Nuclear repulsion energy59.448140
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 B3PW91/6-311G*
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' 3577 3444 33.65      
2 A' 2374 2285 104.29      
3 A' 1679 1616 55.15      
4 A' 1109 1068 7.29      
5 A' 585 563 197.79      
6 A' 500 482 97.66      
7 A" 3670 3533 48.21      
8 A" 1216 1170 0.64      
9 A" 420 405 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 7564.9 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 7282.7 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 B3PW91/6-311G*
ABC
10.37012 0.34041 0.33210

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.219 0.000
N2 -0.021 1.377 0.000
N3 0.087 -1.116 0.000
H4 -0.232 -1.571 0.843
H5 -0.232 -1.571 -0.843

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.15781.33821.99191.9919
N21.15782.49533.07283.0728
N31.33822.49531.00961.0096
H41.99193.07281.00961.6856
H51.99193.07281.00961.6856

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 115.372 C1 N3 H5 115.372
N2 C1 N3 177.295 H4 N3 H5 113.197
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.341      
2 N -0.313      
3 N -0.785      
4 H 0.378      
5 H 0.378      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.066 -4.522 0.000 4.646
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.338 2.003 0.000
y 2.003 -18.252 0.000
z 0.000 0.000 -14.825
Traceless
 xyz
x -1.799 2.003 0.000
y 2.003 -1.671 0.000
z 0.000 0.000 3.470
Polar
3z2-r26.940
x2-y2-0.085
xy2.003
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.845 0.000 0.000
y 0.000 4.896 0.000
z 0.000 0.000 2.225


<r2> (average value of r2) Å2
<r2> 39.500
(<r2>)1/2 6.285

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-148.758722
Energy at 298.15K 
HF Energy-148.758722
Nuclear repulsion energy59.579180
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 B3PW91/6-311G*
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 3640 3505 55.40      
2 A1 2373 2285 129.65      
3 A1 1652 1591 60.53      
4 A1 1141 1099 10.46      
5 B1 543 523 0.65      
6 B1 405i 390i 332.77      
7 B2 3754 3614 76.98      
8 B2 1153 1110 4.71      
9 B2 415 400 0.23      

Unscaled Zero Point Vibrational Energy (zpe) 7133.7 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 6867.6 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 B3PW91/6-311G*
ABC
11.20306 0.34177 0.33165

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.220
N2 0.000 0.000 1.379
N3 0.000 0.000 -1.105
H4 0.000 0.864 -1.617
H5 0.000 -0.864 -1.617

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.15931.32462.02942.0294
N21.15932.48393.11763.1176
N31.32462.48391.00411.0041
H42.02943.11761.00411.7280
H52.02943.11761.00411.7280

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.632 C1 N3 H5 120.632
N2 C1 N3 180.000 H4 N3 H5 118.736
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.363      
2 N -0.320      
3 N -0.820      
4 H 0.388      
5 H 0.388      


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 -4.881 4.881
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.567 0.000 0.000
y 0.000 -14.576 0.000
z 0.000 0.000 -17.496
Traceless
 xyz
x -2.531 0.000 0.000
y 0.000 3.455 0.000
z 0.000 0.000 -0.924
Polar
3z2-r2-1.849
x2-y2-3.991
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.776 0.000 0.000
y 0.000 2.154 0.000
z 0.000 0.000 4.924


<r2> (average value of r2) Å2
<r2> 39.409
(<r2>)1/2 6.278