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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS cis 2A'
1 2 yes CS trans 2A'

Conformer 1 (CS cis)

Jump to S1C2
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-93.927757
Energy at 298.15K-93.929058
HF Energy-93.927757
Nuclear repulsion energy28.191370
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*
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' 3345 3172 3.93      
2 A' 3033 2876 59.29      
3 A' 1888 1790 29.12      
4 A' 1043 989 135.17      
5 A' 888 842 122.12      
6 A" 922 875 6.66      

Unscaled Zero Point Vibrational Energy (zpe) 5559.2 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 5271.7 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 mPW1PW91/6-31G*
ABC
12.88110 1.30183 1.18234

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.111 0.637 0.000
N2 0.111 -0.589 0.000
H3 -0.673 1.407 0.000
H4 -0.775 -1.108 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22551.09921.9572
N21.22552.14401.0271
H31.09922.14402.5170
H41.95721.02712.5170

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 120.397 H3 C1 N2 134.451
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.010      
2 N -0.501      
3 H 0.177      
4 H 0.334      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.239 0.471 0.000 2.288
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.830 0.776 0.000
y 0.776 -10.903 0.000
z 0.000 0.000 -12.396
Traceless
 xyz
x -0.180 0.776 0.000
y 0.776 1.210 0.000
z 0.000 0.000 -1.030
Polar
3z2-r2-2.060
x2-y2-0.927
xy0.776
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.916 0.043 0.000
y 0.043 3.776 0.000
z 0.000 0.000 1.183


<r2> (average value of r2) Å2
<r2> 16.594
(<r2>)1/2 4.074

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-93.935955
Energy at 298.15K-93.937303
HF Energy-93.935955
Nuclear repulsion energy28.129910
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*
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' 3471 3292 2.98      
2 A' 3082 2922 33.33      
3 A' 1841 1746 29.14      
4 A' 1231 1167 12.10      
5 A' 929 881 225.44      
6 A" 995 943 116.70      

Unscaled Zero Point Vibrational Energy (zpe) 5774.4 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 5475.9 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*
ABC
13.43648 1.29523 1.18135

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.000 0.649 0.000
N2 -0.000 -0.586 0.000
H3 0.906 1.268 0.000
H4 -0.904 -1.061 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23511.09751.9349
N21.23512.06341.0216
H31.09752.06342.9502
H41.93491.02162.9502

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 117.747 H3 C1 N2 124.300
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.048      
2 N -0.490      
3 H 0.190      
4 H 0.348      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.585 0.245 0.000 0.634
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.976 3.095 0.000
y 3.095 -11.266 0.000
z 0.000 0.000 -12.428
Traceless
 xyz
x 0.872 3.095 0.000
y 3.095 0.436 0.000
z 0.000 0.000 -1.307
Polar
3z2-r2-2.615
x2-y20.291
xy3.095
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.151 0.500 0.000
y 0.500 3.608 0.000
z 0.000 0.000 1.229


<r2> (average value of r2) Å2
<r2> 16.523
(<r2>)1/2 4.065