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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-16.653027
Energy at 298.15K-16.654296
HF Energy-16.653027
Nuclear repulsion energy15.425610
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 B3LYP/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3293 3180 2.38      
2 A' 2976 2874 59.60      
3 A' 1813 1751 34.64      
4 A' 1010 976 130.21      
5 A' 849 820 101.61      
6 A" 866 836 1.62      

Unscaled Zero Point Vibrational Energy (zpe) 5403.0 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 5217.6 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 B3LYP/CEP-31G*
ABC
12.25054 1.26334 1.14524

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.114 0.648 0.000
N2 0.114 -0.602 0.000
H3 -0.685 1.421 0.000
H4 -0.799 -1.096 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.24911.11241.9681
N21.24912.17501.0384
H31.11242.17502.5196
H41.96811.03842.5196

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.426 H3 C1 N2 134.062
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.420      
2 N -0.052      
3 H 0.206      
4 H 0.266      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.535 0.546 0.000 2.593
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.962 0.491 0.000
y 0.491 -11.097 0.000
z 0.000 0.000 -12.695
Traceless
 xyz
x -0.067 0.491 0.000
y 0.491 1.231 0.000
z 0.000 0.000 -1.165
Polar
3z2-r2-2.330
x2-y2-0.865
xy0.491
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.975 0.223 0.000
y 0.223 3.922 0.000
z 0.000 0.000 1.476


<r2> (average value of r2) Å2
<r2> 15.377
(<r2>)1/2 3.921

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B3LYP/CEP-31G*
 hartrees
Energy at 0K-16.663350
Energy at 298.15K-16.664683
HF Energy-16.663350
Nuclear repulsion energy15.406022
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 B3LYP/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3430 3312 2.64      
2 A' 3035 2931 34.50      
3 A' 1766 1705 36.27      
4 A' 1210 1168 13.12      
5 A' 906 875 216.29      
6 A" 959 926 131.58      

Unscaled Zero Point Vibrational Energy (zpe) 5652.7 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 5458.8 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 B3LYP/CEP-31G*
ABC
12.81678 1.25568 1.14363

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 0.660 0.000
N2 0.001 -0.599 0.000
H3 0.920 1.282 0.000
H4 -0.927 -1.052 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.25911.10961.9473
N21.25912.09331.0320
H31.10962.09332.9759
H41.94731.03202.9759

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 116.057 H3 C1 N2 124.068
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.427      
2 N -0.067      
3 H 0.207      
4 H 0.287      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.411 0.252 0.000 0.482
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.052 3.438 0.000
y 3.438 -11.514 0.000
z 0.000 0.000 -12.756
Traceless
 xyz
x 1.083 3.438 0.000
y 3.438 0.390 0.000
z 0.000 0.000 -1.473
Polar
3z2-r2-2.946
x2-y20.462
xy3.438
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.163 0.309 0.000
y 0.309 3.863 0.000
z 0.000 0.000 1.549


<r2> (average value of r2) Å2
<r2> 15.345
(<r2>)1/2 3.917