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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: HF/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-93.432491
Energy at 298.15K-93.433867
HF Energy-93.432491
Nuclear repulsion energy28.420697
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/cc-pVTZ
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' 3577 3255 4.94      
2 A' 3182 2896 27.80      
3 A' 1720 1565 5.73      
4 A' 1236 1125 123.40      
5 A' 987 899 44.74      
6 A" 1057 962 4.42      

Unscaled Zero Point Vibrational Energy (zpe) 5879.5 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 5350.9 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 HF/cc-pVTZ
ABC
12.57646 1.33023 1.20299

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.113 0.631 0.000
N2 0.113 -0.592 0.000
H3 -0.667 1.383 0.000
H4 -0.797 -1.029 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22271.08331.8926
N21.22272.12331.0092
H31.08332.12332.4155
H41.89261.00922.4155

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 115.658 H3 C1 N2 133.989
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.063      
2 N -0.243      
3 H 0.128      
4 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.160 0.936 0.000 2.355
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.932 0.913 0.000
y 0.913 -11.370 0.000
z 0.000 0.000 -12.779
Traceless
 xyz
x 0.143 0.913 0.000
y 0.913 0.985 0.000
z 0.000 0.000 -1.128
Polar
3z2-r2-2.256
x2-y2-0.562
xy0.913
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.293 0.003 0.000
y 0.003 3.781 0.000
z 0.000 0.000 1.776


<r2> (average value of r2) Å2
<r2> 16.568
(<r2>)1/2 4.070

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at HF/cc-pVTZ
 hartrees
Energy at 0K-93.437820
Energy at 298.15K-93.439210
HF Energy-93.437820
Nuclear repulsion energy28.433589
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/cc-pVTZ
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' 3666 3336 11.97      
2 A' 3218 2929 18.14      
3 A' 1746 1589 21.85      
4 A' 1301 1184 16.05      
5 A' 1014 923 178.11      
6 A" 1086 988 100.44      

Unscaled Zero Point Vibrational Energy (zpe) 6015.0 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 5474.3 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/cc-pVTZ
ABC
14.03399 1.31733 1.20428

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.004 0.637 0.000
N2 0.004 -0.587 0.000
H3 0.860 1.297 0.000
H4 -0.907 -1.012 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22421.08151.8843
N21.22422.06981.0051
H31.08152.06982.9083
H41.88431.00512.9083

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 115.048 H3 C1 N2 127.613
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.089      
2 N -0.262      
3 H 0.156      
4 H 0.194      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.691 0.792 0.000 1.051
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.243 3.053 0.000
y 3.053 -11.486 0.000
z 0.000 0.000 -12.799
Traceless
 xyz
x 0.899 3.053 0.000
y 3.053 0.535 0.000
z 0.000 0.000 -1.434
Polar
3z2-r2-2.868
x2-y20.243
xy3.053
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.423 0.402 0.000
y 0.402 3.706 0.000
z 0.000 0.000 1.784


<r2> (average value of r2) Å2
<r2> 16.515
(<r2>)1/2 4.064