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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: HF/CEP-31G*

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 HF/CEP-31G*
 hartrees
Energy at 0K-25.986128
Energy at 298.15K-25.988566
Nuclear repulsion energy31.674132
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 HF/CEP-31G*
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' 3789 3402 46.43      
2 A' 2590 2326 162.43      
3 A' 1795 1612 52.09      
4 A' 1132 1016 4.79      
5 A' 758 680 263.52      
6 A' 537 482 41.05      
7 A" 3897 3499 63.92      
8 A" 1317 1183 0.59      
9 A" 457 411 0.98      

Unscaled Zero Point Vibrational Energy (zpe) 8135.5 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 7305.7 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 HF/CEP-31G*
ABC
10.12808 0.33655 0.32910

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.226 0.000
N2 -0.067 1.378 0.000
N3 0.133 -1.128 0.000
H4 -0.231 -1.553 0.833
H5 -0.231 -1.553 -0.833

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.15361.36141.97841.9784
N21.15362.51453.05173.0517
N31.36142.51451.00351.0035
H41.97843.05171.00351.6666
H51.97843.05171.00351.6666

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 112.685 C1 N3 H5 112.685
N2 C1 N3 177.727 H4 N3 H5 112.280
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.517      
2 N 0.272      
3 N -0.498      
4 H 0.372      
5 H 0.372      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.179 -4.508 0.000 4.659
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.624 2.540 0.000
y 2.540 -18.906 0.000
z 0.000 0.000 -15.086
Traceless
 xyz
x -1.627 2.540 0.000
y 2.540 -2.051 0.000
z 0.000 0.000 3.679
Polar
3z2-r27.357
x2-y20.282
xy2.540
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.894 -0.102 0.000
y -0.102 4.560 0.000
z 0.000 0.000 2.295


<r2> (average value of r2) Å2
<r2> 33.452
(<r2>)1/2 5.784

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-25.983419
Energy at 298.15K 
HF Energy-25.983419
Nuclear repulsion energy31.740573
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 HF/CEP-31G*
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 3856 3463 88.16      
2 A1 2573 2311 218.61      
3 A1 1752 1573 57.92      
4 A1 1183 1062 14.56      
5 B1 586 526 1.77      
6 B1 538i 484i 387.37      
7 B2 3994 3587 117.80      
8 B2 1219 1094 2.48      
9 B2 449 404 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 7537.0 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 6768.3 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 HF/CEP-31G*
ABC
11.19187 0.33886 0.32890

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.226
N2 0.000 0.000 1.382
N3 0.000 0.000 -1.115
H4 0.000 0.864 -1.613
H5 0.000 -0.864 -1.613

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.15591.34052.03212.0321
N21.15592.49643.11723.1172
N31.34052.49640.99790.9979
H42.03213.11720.99791.7289
H52.03213.11720.99791.7289

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 119.972 C1 N3 H5 119.972
N2 C1 N3 180.000 H4 N3 H5 120.055
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.535      
2 N 0.253      
3 N -0.522      
4 H 0.402      
5 H 0.402      


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 -4.988 4.988
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.854 0.000 0.000
y 0.000 -14.715 0.000
z 0.000 0.000 -17.944
Traceless
 xyz
x -2.524 0.000 0.000
y 0.000 3.684 0.000
z 0.000 0.000 -1.159
Polar
3z2-r2-2.319
x2-y2-4.139
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.834 0.000 0.000
y 0.000 2.188 0.000
z 0.000 0.000 4.647


<r2> (average value of r2) Å2
<r2> 33.387
(<r2>)1/2 5.778