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All results from a given calculation for NH2CN (cyanamide)

using model chemistry: mPW1PW91/6-31G(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 mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-148.753363
Energy at 298.15K-148.755681
Nuclear repulsion energy59.459762
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 mPW1PW91/6-31G(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' 3601 3438 43.33      
2 A' 2394 2286 98.41      
3 A' 1635 1561 40.39      
4 A' 1115 1064 6.78      
5 A' 604 577 162.38      
6 A' 507 484 77.98      
7 A" 3699 3531 64.14      
8 A" 1197 1143 0.22      
9 A" 434 414 0.42      

Unscaled Zero Point Vibrational Energy (zpe) 7592.1 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 7248.2 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 mPW1PW91/6-31G(2df,p)
ABC
10.29164 0.34051 0.33242

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(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 0.103 -1.116 0.000
H4 -0.232 -1.564 0.840
H5 -0.232 -1.564 -0.840

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.15811.33881.98371.9837
N21.15812.49633.06353.0635
N31.33882.49631.00851.0085
H41.98373.06351.00851.6795
H51.98373.06351.00851.6795

picture of cyanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 114.631 C1 N3 H5 114.631
N2 C1 N3 177.406 H4 N3 H5 112.741
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.340      
2 N -0.319      
3 N -0.637      
4 H 0.308      
5 H 0.308      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.936 -4.412 0.000 4.510
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.914 1.904 0.000
y 1.904 -17.925 0.000
z 0.000 0.000 -14.690
Traceless
 xyz
x -1.606 1.904 0.000
y 1.904 -1.623 0.000
z 0.000 0.000 3.230
Polar
3z2-r26.460
x2-y20.011
xy1.904
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.019 -0.012 0.000
y -0.012 4.850 0.000
z 0.000 0.000 2.388


<r2> (average value of r2) Å2
<r2> 39.276
(<r2>)1/2 6.267

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-148.751985
Energy at 298.15K 
HF Energy-148.751985
Nuclear repulsion energy59.622660
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 mPW1PW91/6-31G(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 3676 3509 70.52      
2 A1 2393 2285 125.59      
3 A1 1620 1547 49.22      
4 A1 1150 1098 10.40      
5 B1 554 529 1.18      
6 B1 429i 409i 256.72      
7 B2 3796 3624 97.05      
8 B2 1135 1084 3.03      
9 B2 429 409 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 7162.5 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 6838.1 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 mPW1PW91/6-31G(2df,p)
ABC
11.23306 0.34219 0.33207

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(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 1.378
N3 0.000 0.000 -1.105
H4 0.000 0.863 -1.613
H5 0.000 -0.863 -1.613

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.15971.32332.02492.0249
N21.15972.48303.11353.1135
N31.32332.48301.00161.0016
H42.02493.11351.00161.7257
H52.02493.11351.00161.7257

picture of cyanamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H4 120.518 C1 N3 H5 120.518
N2 C1 N3 180.000 H4 N3 H5 118.965
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.362      
2 N -0.332      
3 N -0.653      
4 H 0.311      
5 H 0.311      


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 -4.777 4.777
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.135 0.000 0.000
y 0.000 -14.421 0.000
z 0.000 0.000 -17.192
Traceless
 xyz
x -2.328 0.000 0.000
y 0.000 3.243 0.000
z 0.000 0.000 -0.914
Polar
3z2-r2-1.829
x2-y2-3.714
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.954 0.000 0.000
y 0.000 2.357 0.000
z 0.000 0.000 4.879


<r2> (average value of r2) Å2
<r2> 39.178
(<r2>)1/2 6.259