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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-93.895538
Energy at 298.15K-93.896836
HF Energy-93.895538
Nuclear repulsion energy28.044489
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' 3361 3182 2.22      
2 A' 3045 2882 56.01      
3 A' 1875 1775 26.80      
4 A' 999 946 84.70      
5 A' 875 828 229.39      
6 A" 945 895 13.89      

Unscaled Zero Point Vibrational Energy (zpe) 5549.9 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 5253.5 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
14.60133 1.26193 1.16154

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 0.105 0.647 0.000
N2 0.105 -0.584 0.000
H3 -0.663 1.430 0.000
H4 -0.699 -1.221 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23081.09672.0334
N21.23082.15521.0255
H31.09672.15522.6509
H42.03341.02552.6509

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 128.395 H3 C1 N2 135.554
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 0.018      
2 N -0.497      
3 H 0.165      
4 H 0.314      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.521 0.243 0.000 2.532
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.306 0.828 0.000
y 0.828 -10.666 0.000
z 0.000 0.000 -12.431
Traceless
 xyz
x -0.758 0.828 0.000
y 0.828 1.703 0.000
z 0.000 0.000 -0.945
Polar
3z2-r2-1.889
x2-y2-1.641
xy0.828
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.708 0.055 0.000
y 0.055 4.001 0.000
z 0.000 0.000 1.064


<r2> (average value of r2) Å2
<r2> 16.874
(<r2>)1/2 4.108

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at mPW1PW91/6-31G
 hartrees
Energy at 0K-93.903704
Energy at 298.15K-93.905056
HF Energy-93.903704
Nuclear repulsion energy27.959133
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' 3495 3308 2.44      
2 A' 3114 2948 29.35      
3 A' 1807 1710 23.87      
4 A' 1209 1144 12.32      
5 A' 932 882 260.12      
6 A" 1011 957 152.21      

Unscaled Zero Point Vibrational Energy (zpe) 5783.4 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 5474.6 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
14.57334 1.26104 1.16061

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 -0.002 0.658 0.000
N2 -0.002 -0.586 0.000
H3 0.891 1.290 0.000
H4 -0.861 -1.137 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.24371.09391.9900
N21.24372.07731.0203
H31.09392.07732.9931
H41.99001.02032.9931

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 122.730 H3 C1 N2 125.293
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 -0.017      
2 N -0.490      
3 H 0.179      
4 H 0.328      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.633 0.136 0.000 0.648
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.264 3.489 0.000
y 3.489 -11.211 0.000
z 0.000 0.000 -12.474
Traceless
 xyz
x 0.578 3.489 0.000
y 3.489 0.658 0.000
z 0.000 0.000 -1.236
Polar
3z2-r2-2.472
x2-y2-0.054
xy3.489
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.047 0.439 0.000
y 0.439 3.726 0.000
z 0.000 0.000 1.112


<r2> (average value of r2) Å2
<r2> 16.767
(<r2>)1/2 4.095