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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: B3LYP/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 B3LYP/6-311G*
 hartrees
Energy at 0K-148.823280
Energy at 298.15K-148.825570
Nuclear repulsion energy59.373852
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 B3LYP/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' 3555 3436 29.80      
2 A' 2361 2281 98.88      
3 A' 1682 1625 52.67      
4 A' 1095 1058 6.88      
5 A' 591 571 212.24      
6 A' 500 484 78.41      
7 A" 3644 3522 42.80      
8 A" 1220 1179 0.51      
9 A" 418 404 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 7533.0 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 7279.1 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 B3LYP/6-311G*
ABC
10.34284 0.33938 0.33115

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.221 0.000
N2 -0.025 1.378 0.000
N3 0.091 -1.118 0.000
H4 -0.231 -1.573 0.843
H5 -0.231 -1.573 -0.843

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.15721.34241.99571.9957
N21.15722.49903.07613.0761
N31.34242.49901.01051.0105
H41.99573.07611.01051.6858
H51.99573.07611.01051.6858

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 115.308 C1 N3 H5 115.308
N2 C1 N3 177.356 H4 N3 H5 113.043
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.284      
2 N -0.270      
3 N -0.750      
4 H 0.368      
5 H 0.368      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.054 -4.480 0.000 4.603
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.405 2.006 0.000
y 2.006 -18.401 0.000
z 0.000 0.000 -14.939
Traceless
 xyz
x -1.735 2.006 0.000
y 2.006 -1.729 0.000
z 0.000 0.000 3.464
Polar
3z2-r26.928
x2-y2-0.004
xy2.006
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.844 -0.001 0.000
y -0.001 4.886 0.000
z 0.000 0.000 2.241


<r2> (average value of r2) Å2
<r2> 39.651
(<r2>)1/2 6.297

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B3LYP/6-311G*
 hartrees
Energy at 0K-148.822128
Energy at 298.15K 
HF Energy-148.822128
Nuclear repulsion energy59.514859
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 B3LYP/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 3621 3499 51.69      
2 A1 2361 2281 124.88      
3 A1 1654 1599 58.00      
4 A1 1129 1090 10.79      
5 B1 540 522 0.68      
6 B1 413i 399i 327.94      
7 B2 3732 3606 71.06      
8 B2 1156 1117 4.23      
9 B2 413 399 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 7095.5 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 6856.3 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 B3LYP/6-311G*
ABC
11.18714 0.34088 0.33080

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.221
N2 0.000 0.000 1.380
N3 0.000 0.000 -1.107
H4 0.000 0.865 -1.619
H5 0.000 -0.865 -1.619

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.15861.32832.03352.0335
N21.15862.48703.12133.1213
N31.32832.48701.00491.0049
H42.03353.12131.00491.7293
H52.03353.12131.00491.7293

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.641 C1 N3 H5 120.641
N2 C1 N3 180.000 H4 N3 H5 118.718
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.306      
2 N -0.277      
3 N -0.786      
4 H 0.379      
5 H 0.379      


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 -4.842 4.842
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.623 0.000 0.000
y 0.000 -14.683 0.000
z 0.000 0.000 -17.643
Traceless
 xyz
x -2.460 0.000 0.000
y 0.000 3.450 0.000
z 0.000 0.000 -0.990
Polar
3z2-r2-1.981
x2-y2-3.940
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.772 0.000 0.000
y 0.000 2.170 0.000
z 0.000 0.000 4.912


<r2> (average value of r2) Å2
<r2> 39.548
(<r2>)1/2 6.289