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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: B3LYP/6-31G**

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 B3LYP/6-31G**
 hartrees
Energy at 0K-148.787012
Energy at 298.15K-148.789262
Nuclear repulsion energy59.114326
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/6-31G**
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' 3558 3419 36.37      
2 A' 2366 2273 92.29      
3 A' 1636 1571 44.36      
4 A' 1101 1057 6.59      
5 A' 577 554 215.31      
6 A' 480 462 62.64      
7 A" 3660 3516 53.06      
8 A" 1192 1145 0.35      
9 A" 407 391 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 7487.9 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 7194.4 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/6-31G**
ABC
10.24258 0.33642 0.32836

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.219 0.000
N2 -0.035 1.385 0.000
N3 0.100 -1.123 0.000
H4 -0.228 -1.575 0.845
H5 -0.228 -1.575 -0.845

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.16601.34591.99591.9959
N21.16602.51133.08373.0837
N31.34592.51131.01241.0124
H41.99593.08371.01241.6893
H51.99593.08371.01241.6893

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 114.895 C1 N3 H5 114.895
N2 C1 N3 177.453 H4 N3 H5 113.088
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.480      
2 N -0.448      
3 N -0.636      
4 H 0.302      
5 H 0.302      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.032 -4.395 0.000 4.515
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.049 2.009 0.000
y 2.009 -18.051 0.000
z 0.000 0.000 -14.745
Traceless
 xyz
x -1.651 2.009 0.000
y 2.009 -1.654 0.000
z 0.000 0.000 3.306
Polar
3z2-r26.611
x2-y20.002
xy2.009
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.609 -0.009 0.000
y -0.009 4.827 0.000
z 0.000 0.000 2.124


<r2> (average value of r2) Å2
<r2> 39.692
(<r2>)1/2 6.300

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B3LYP/6-31G**
 hartrees
Energy at 0K-148.785774
Energy at 298.15K 
HF Energy-148.785774
Nuclear repulsion energy59.256289
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/6-31G**
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 3630 3488 63.06      
2 A1 2366 2273 117.56      
3 A1 1619 1556 53.64      
4 A1 1135 1090 9.92      
5 B1 520 499 0.98      
6 B1 416i 399i 314.55      
7 B2 3751 3604 86.64      
8 B2 1131 1086 4.29      
9 B2 404 388 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 7070.2 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 6793.0 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/6-31G**
ABC
11.11749 0.33788 0.32791

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

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 1.387
N3 0.000 0.000 -1.112
H4 0.000 0.867 -1.622
H5 0.000 -0.867 -1.622

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.16751.33152.03582.0358
N21.16752.49903.13183.1318
N31.33152.49901.00631.0063
H42.03583.13181.00631.7347
H52.03583.13181.00631.7347

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.468 C1 N3 H5 120.468
N2 C1 N3 180.000 H4 N3 H5 119.065
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.499      
2 N -0.449      
3 N -0.662      
4 H 0.306      
5 H 0.306      


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 -4.756 4.756
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.245 0.000 0.000
y 0.000 -14.471 0.000
z 0.000 0.000 -17.307
Traceless
 xyz
x -2.356 0.000 0.000
y 0.000 3.305 0.000
z 0.000 0.000 -0.949
Polar
3z2-r2-1.899
x2-y2-3.774
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.511 0.000 0.000
y 0.000 2.070 0.000
z 0.000 0.000 4.847


<r2> (average value of r2) Å2
<r2> 39.594
(<r2>)1/2 6.292