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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: B3PW91/6-311G**

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 B3PW91/6-311G**
 hartrees
Energy at 0K-93.947288
Energy at 298.15K-93.948582
HF Energy-93.947288
Nuclear repulsion energy28.256548
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 B3PW91/6-311G**
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' 3317 3195 4.67      
2 A' 2972 2863 52.70      
3 A' 1867 1798 27.59      
4 A' 1008 971 141.65      
5 A' 868 836 113.57      
6 A" 913 879 4.87      

Unscaled Zero Point Vibrational Energy (zpe) 5473.0 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 5271.0 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 B3PW91/6-311G**
ABC
12.98204 1.30759 1.18794

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.111 0.635 0.000
N2 0.111 -0.586 0.000
H3 -0.674 1.406 0.000
H4 -0.768 -1.117 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22091.10031.9602
N21.22092.14071.0271
H31.10032.14072.5243
H41.96021.02712.5243

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 121.135 H3 C1 N2 134.454
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.019      
2 N -0.316      
3 H 0.131      
4 H 0.203      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.240 0.366 0.000 2.270
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.042 0.624 0.000
y 0.624 -11.075 0.000
z 0.000 0.000 -12.536
Traceless
 xyz
x -0.236 0.624 0.000
y 0.624 1.214 0.000
z 0.000 0.000 -0.978
Polar
3z2-r2-1.955
x2-y2-0.967
xy0.624
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.156 0.084 0.000
y 0.084 3.984 0.000
z 0.000 0.000 1.437


<r2> (average value of r2) Å2
<r2> 16.673
(<r2>)1/2 4.083

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B3PW91/6-311G**
 hartrees
Energy at 0K-93.954900
Energy at 298.15K-93.956243
HF Energy-93.954900
Nuclear repulsion energy28.179788
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 B3PW91/6-311G**
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' 3444 3317 5.69      
2 A' 3020 2908 27.35      
3 A' 1815 1748 27.33      
4 A' 1197 1153 9.62      
5 A' 909 875 222.78      
6 A" 979 943 120.46      

Unscaled Zero Point Vibrational Energy (zpe) 5681.7 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 5472.1 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 B3PW91/6-311G**
ABC
13.58366 1.29882 1.18547

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.000 0.647 0.000
N2 -0.000 -0.584 0.000
H3 0.903 1.272 0.000
H4 -0.901 -1.067 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23131.09851.9359
N21.23132.06451.0216
H31.09852.06452.9536
H41.93591.02162.9536

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.177 H3 C1 N2 124.679
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.057      
2 N -0.308      
3 H 0.145      
4 H 0.220      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.485 0.157 0.000 0.510
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.148 3.169 0.000
y 3.169 -11.429 0.000
z 0.000 0.000 -12.577
Traceless
 xyz
x 0.855 3.169 0.000
y 3.169 0.434 0.000
z 0.000 0.000 -1.289
Polar
3z2-r2-2.578
x2-y20.280
xy3.169
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.340 0.422 0.000
y 0.422 3.778 0.000
z 0.000 0.000 1.517


<r2> (average value of r2) Å2
<r2> 16.604
(<r2>)1/2 4.075