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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: LSDA/6-31G(2df,p)

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 LSDA/6-31G(2df,p)
 hartrees
Energy at 0K-93.431394
Energy at 298.15K-93.432651
HF Energy-93.431394
Nuclear repulsion energy28.168131
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 LSDA/6-31G(2df,p)
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' 3225 3174 7.18      
2 A' 2899 2853 43.42      
3 A' 1879 1849 18.57      
4 A' 934 919 131.76      
5 A' 829 816 129.84      
6 A" 875 861 6.40      

Unscaled Zero Point Vibrational Energy (zpe) 5321.0 cm-1
Scaled (by 0.984) Zero Point Vibrational Energy (zpe) 5235.9 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 LSDA/6-31G(2df,p)
ABC
13.17812 1.29600 1.17996

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.110 0.639 0.000
N2 0.110 -0.581 0.000
H3 -0.696 1.404 0.000
H4 -0.738 -1.175 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22011.11122.0030
N21.22012.14241.0359
H31.11122.14242.5796
H42.00301.03592.5796

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 125.005 H3 C1 N2 133.498
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.206      
2 N -0.238      
3 H 0.168      
4 H 0.276      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.025 0.022 0.000 2.025
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.958 0.496 0.000
y 0.496 -10.726 0.000
z 0.000 0.000 -12.393
Traceless
 xyz
x -0.398 0.496 0.000
y 0.496 1.450 0.000
z 0.000 0.000 -1.051
Polar
3z2-r2-2.103
x2-y2-1.232
xy0.496
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.204 0.078 0.000
y 0.078 4.007 0.000
z 0.000 0.000 1.524


<r2> (average value of r2) Å2
<r2> 16.656
(<r2>)1/2 4.081

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at LSDA/6-31G(2df,p)
 hartrees
Energy at 0K-93.438380
Energy at 298.15K-93.439701
HF Energy-93.438380
Nuclear repulsion energy28.081698
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 LSDA/6-31G(2df,p)
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' 3352 3299 5.03      
2 A' 2947 2900 23.78      
3 A' 1813 1784 17.02      
4 A' 1139 1121 6.10      
5 A' 874 860 207.77      
6 A" 950 935 94.20      

Unscaled Zero Point Vibrational Energy (zpe) 5537.7 cm-1
Scaled (by 0.984) Zero Point Vibrational Energy (zpe) 5449.1 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 LSDA/6-31G(2df,p)
ABC
13.40930 1.29235 1.17875

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.002 0.650 0.000
N2 -0.002 -0.582 0.000
H3 0.923 1.264 0.000
H4 -0.897 -1.094 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23231.11021.9601
N21.23232.06481.0306
H31.11022.06482.9783
H41.96011.03062.9783

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.772 H3 C1 N2 123.556
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.231      
2 N -0.236      
3 H 0.177      
4 H 0.290      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.420 -0.115 0.000 0.435
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.043 3.032 0.000
y 3.032 -11.288 0.000
z 0.000 0.000 -12.440
Traceless
 xyz
x 0.821 3.032 0.000
y 3.032 0.453 0.000
z 0.000 0.000 -1.274
Polar
3z2-r2-2.549
x2-y20.246
xy3.032
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.393 0.602 0.000
y 0.602 3.681 0.000
z 0.000 0.000 1.553


<r2> (average value of r2) Å2
<r2> 16.597
(<r2>)1/2 4.074