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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: HF/STO-3G

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/STO-3G
 hartrees
Energy at 0K-92.193441
Energy at 298.15K-92.194746
HF Energy-92.193441
Nuclear repulsion energy26.694161
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/STO-3G
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' 3709 3028 5.55      
2 A' 3630 2964 1.52      
3 A' 1489 1216 43.03      
4 A' 1275 1041 8.79      
5 A' 1089 889 14.19      
6 A" 930 759 6.51      

Unscaled Zero Point Vibrational Energy (zpe) 6060.6 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 4948.5 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 HF/STO-3G
ABC
10.79802 1.17313 1.05817

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.121 0.682 0.000
N2 0.121 -0.645 0.000
H3 -0.696 1.404 0.000
H4 -0.880 -0.985 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.32711.09031.9449
N21.32712.20581.0577
H31.09032.20582.3961
H41.94491.05772.3961

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 108.759 H3 C1 N2 131.450
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.048      
2 N -0.259      
3 H 0.062      
4 H 0.149      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.696 0.971 0.000 1.954
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.551 1.085 0.000
y 1.085 -11.509 0.000
z 0.000 0.000 -11.137
Traceless
 xyz
x 0.771 1.085 0.000
y 1.085 -0.665 0.000
z 0.000 0.000 -0.107
Polar
3z2-r2-0.214
x2-y20.957
xy1.085
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.927 0.100 0.000
y 0.100 1.740 0.000
z 0.000 0.000 0.515


<r2> (average value of r2) Å2
<r2> 17.007
(<r2>)1/2 4.124

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-92.198206
Energy at 298.15K-92.199540
HF Energy-92.198206
Nuclear repulsion energy26.774190
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/STO-3G
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' 3786 3091 8.10      
2 A' 3653 2982 2.14      
3 A' 1477 1206 20.41      
4 A' 1337 1092 1.74      
5 A' 1099 897 49.45      
6 A" 1024 836 25.53      

Unscaled Zero Point Vibrational Energy (zpe) 6187.7 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 5052.3 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/STO-3G
ABC
11.53359 1.17520 1.06653

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.007 0.686 0.000
N2 0.007 -0.638 0.000
H3 0.904 1.305 0.000
H4 -0.998 -0.955 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.32391.09001.9243
N21.32392.14011.0542
H31.09002.14012.9541
H41.92431.05422.9541

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 107.488 H3 C1 N2 124.608
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.036      
2 N -0.258      
3 H 0.069      
4 H 0.153      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.045 0.901 0.000 1.380
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.058 1.886 0.000
y 1.886 -11.590 0.000
z 0.000 0.000 -11.151
Traceless
 xyz
x 1.312 1.886 0.000
y 1.886 -0.986 0.000
z 0.000 0.000 -0.327
Polar
3z2-r2-0.653
x2-y21.532
xy1.886
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.113 0.575 0.000
y 0.575 1.732 0.000
z 0.000 0.000 0.464


<r2> (average value of r2) Å2
<r2> 16.931
(<r2>)1/2 4.115