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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: HF/LANL2DZ

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 HF/LANL2DZ
 hartrees
Energy at 0K-93.361714
Energy at 298.15K-93.363063
HF Energy-93.361714
Nuclear repulsion energy27.652504
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 HF/LANL2DZ
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' 3586 3227 0.31      
2 A' 3298 2968 19.42      
3 A' 1496 1346 13.36      
4 A' 1176 1059 91.93      
5 A' 962 865 75.83      
6 A" 1020 918 6.68      

Unscaled Zero Point Vibrational Energy (zpe) 5768.9 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 5191.4 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 HF/LANL2DZ
ABC
13.46565 1.23028 1.12729

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.109 0.659 0.000
N2 0.109 -0.608 0.000
H3 -0.650 1.427 0.000
H4 -0.765 -1.124 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.26651.08021.9849
N21.26652.17191.0144
H31.08022.17192.5534
H41.98491.01442.5534

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 120.569 H3 C1 N2 135.347
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.090      
2 N -0.381      
3 H 0.186      
4 H 0.284      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.690 0.973 0.000 2.861
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.351 1.295 0.000
y 1.295 -11.586 0.000
z 0.000 0.000 -12.961
Traceless
 xyz
x -0.078 1.295 0.000
y 1.295 1.070 0.000
z 0.000 0.000 -0.992
Polar
3z2-r2-1.984
x2-y2-0.765
xy1.295
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.642 0.096 0.000
y 0.096 3.660 0.000
z 0.000 0.000 1.181


<r2> (average value of r2) Å2
<r2> 17.332
(<r2>)1/2 4.163

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-93.368152
Energy at 298.15K-93.369528
HF Energy-93.368152
Nuclear repulsion energy27.750816
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 HF/LANL2DZ
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' 3707 3336 5.96      
2 A' 3360 3023 9.86      
3 A' 1513 1362 2.99      
4 A' 1275 1147 24.21      
5 A' 1005 904 193.69      
6 A" 1079 971 119.21      

Unscaled Zero Point Vibrational Energy (zpe) 5969.3 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 5371.8 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 HF/LANL2DZ
ABC
14.78572 1.23187 1.13713

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.002 0.663 0.000
N2 0.002 -0.602 0.000
H3 0.848 1.328 0.000
H4 -0.878 -1.094 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.26451.07601.9651
N21.26452.10661.0089
H31.07602.10662.9741
H41.96511.00892.9741

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.201 H3 C1 N2 128.158
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.110      
2 N -0.388      
3 H 0.196      
4 H 0.301      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.026 0.850 0.000 1.332
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.541 3.551 0.000
y 3.551 -11.756 0.000
z 0.000 0.000 -12.987
Traceless
 xyz
x 0.830 3.551 0.000
y 3.551 0.508 0.000
z 0.000 0.000 -1.338
Polar
3z2-r2-2.677
x2-y20.215
xy3.551
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.905 0.429 0.000
y 0.429 3.644 0.000
z 0.000 0.000 1.095


<r2> (average value of r2) Å2
<r2> 17.175
(<r2>)1/2 4.144