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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: HF/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-93.434359
Energy at 298.15K-93.435734
HF Energy-93.434359
Nuclear repulsion energy28.425935
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/aug-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' 3581 3260 6.73      
2 A' 3186 2901 24.92      
3 A' 1724 1570 9.78      
4 A' 1232 1121 119.40      
5 A' 983 895 45.33      
6 A" 1052 958 3.62      

Unscaled Zero Point Vibrational Energy (zpe) 5878.7 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 5351.9 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/aug-cc-pVTZ
ABC
12.61794 1.33004 1.20321

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.112 0.631 0.000
N2 0.112 -0.591 0.000
H3 -0.667 1.383 0.000
H4 -0.794 -1.033 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22231.08301.8956
N21.22232.12221.0089
H31.08302.12222.4195
H41.89561.00892.4195

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 116.006 H3 C1 N2 133.942
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.353      
2 N -0.360      
3 H 0.492      
4 H 0.221      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.163 0.965 0.000 2.368
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.071 0.917 0.000
y 0.917 -11.440 0.000
z 0.000 0.000 -12.950
Traceless
 xyz
x 0.124 0.917 0.000
y 0.917 1.071 0.000
z 0.000 0.000 -1.195
Polar
3z2-r2-2.389
x2-y2-0.632
xy0.917
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.720 0.021 0.000
y 0.021 4.087 0.000
z 0.000 0.000 2.325


<r2> (average value of r2) Å2
<r2> 16.648
(<r2>)1/2 4.080

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at HF/aug-cc-pVTZ
 hartrees
Energy at 0K-93.439909
Energy at 298.15K-93.441297
HF Energy-93.439909
Nuclear repulsion energy28.443057
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/aug-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' 3670 3341 15.75      
2 A' 3225 2936 15.43      
3 A' 1750 1594 27.46      
4 A' 1294 1178 16.41      
5 A' 1011 920 176.84      
6 A" 1082 985 95.89      

Unscaled Zero Point Vibrational Energy (zpe) 6015.7 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 5476.7 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/aug-cc-pVTZ
ABC
14.14111 1.31687 1.20468

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-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 -0.586 0.000
H3 0.858 1.300 0.000
H4 -0.904 -1.017 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22351.08091.8870
N21.22352.07041.0048
H31.08092.07042.9106
H41.88701.00482.9106

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 115.386 H3 C1 N2 127.797
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.403      
2 N -0.362      
3 H 0.509      
4 H 0.256      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.669 0.823 0.000 1.061
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.403 3.159 0.000
y 3.159 -11.603 0.000
z 0.000 0.000 -12.986
Traceless
 xyz
x 0.891 3.159 0.000
y 3.159 0.592 0.000
z 0.000 0.000 -1.483
Polar
3z2-r2-2.967
x2-y20.200
xy3.159
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.823 0.246 0.000
y 0.246 4.048 0.000
z 0.000 0.000 2.339


<r2> (average value of r2) Å2
<r2> 16.613
(<r2>)1/2 4.076