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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: B1B95/6-31G(2df,p)

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 B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-148.737630
Energy at 298.15K-148.739938
Nuclear repulsion energy59.446142
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 B1B95/6-31G(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 A' 3587 3436 42.11      
2 A' 2387 2286 96.79      
3 A' 1624 1555 39.37      
4 A' 1110 1063 7.04      
5 A' 598 573 157.59      
6 A' 503 482 79.10      
7 A" 3685 3529 61.42      
8 A" 1187 1137 0.22      
9 A" 432 413 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 7555.8 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 7236.2 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 B1B95/6-31G(2df,p)
ABC
10.29150 0.34035 0.33227

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.218 0.000
N2 -0.036 1.376 0.000
N3 0.102 -1.117 0.000
H4 -0.233 -1.564 0.840
H5 -0.233 -1.564 -0.840

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.15851.33891.98421.9842
N21.15852.49683.06453.0645
N31.33892.49681.00881.0088
H41.98423.06451.00881.6794
H51.98423.06451.00881.6794

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 114.652 C1 N3 H5 114.652
N2 C1 N3 177.389 H4 N3 H5 112.690
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.330      
2 N -0.312      
3 N -0.614      
4 H 0.298      
5 H 0.298      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.930 -4.377 0.000 4.474
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.880 1.886 0.000
y 1.886 -17.901 0.000
z 0.000 0.000 -14.695
Traceless
 xyz
x -1.582 1.886 0.000
y 1.886 -1.614 0.000
z 0.000 0.000 3.196
Polar
3z2-r26.391
x2-y20.021
xy1.886
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.010 -0.006 0.000
y -0.006 4.861 0.000
z 0.000 0.000 2.391


<r2> (average value of r2) Å2
<r2> 39.277
(<r2>)1/2 6.267

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-148.733580
Energy at 298.15K 
HF Energy-148.733580
Nuclear repulsion energy59.669970
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 B1B95/6-31G(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 3674 3519 71.08      
2 A1 2399 2298 126.20      
3 A1 1615 1547 48.91      
4 A1 1150 1101 10.68      
5 B1 554 530 1.26      
6 B1 424i 406i 254.51      
7 B2 3795 3635 95.66      
8 B2 1130 1082 3.07      
9 B2 429 410 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 7160.7 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 6857.8 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 B1B95/6-31G(2df,p)
ABC
11.25261 0.34271 0.33258

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.219
N2 0.000 0.000 1.377
N3 0.000 0.000 -1.104
H4 0.000 0.862 -1.612
H5 0.000 -0.862 -1.612

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.15851.32252.02382.0238
N21.15852.48103.11133.1113
N31.32252.48101.00091.0009
H42.02383.11131.00091.7242
H52.02383.11131.00091.7242

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.531 C1 N3 H5 120.531
N2 C1 N3 180.000 H4 N3 H5 118.937
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.352      
2 N -0.323      
3 N -0.636      
4 H 0.303      
5 H 0.303      


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 -4.746 4.746
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.098 0.000 0.000
y 0.000 -14.421 0.000
z 0.000 0.000 -17.179
Traceless
 xyz
x -2.297 0.000 0.000
y 0.000 3.217 0.000
z 0.000 0.000 -0.920
Polar
3z2-r2-1.840
x2-y2-3.676
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.940 0.000 0.000
y 0.000 2.354 0.000
z 0.000 0.000 4.866


<r2> (average value of r2) Å2
<r2> 39.124
(<r2>)1/2 6.255