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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: PBEPBE/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 PBEPBE/aug-cc-pVTZ
 hartrees
Energy at 0K-93.882672
Energy at 298.15K-93.883938
HF Energy-93.882672
Nuclear repulsion energy28.101377
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 PBEPBE/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' 3182 3161 9.85      
2 A' 2883 2865 57.35      
3 A' 1807 1795 22.47      
4 A' 955 948 149.34      
5 A' 842 836 91.73      
6 A" 868 862 3.37      

Unscaled Zero Point Vibrational Energy (zpe) 5268.3 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 5234.0 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 PBEPBE/aug-cc-pVTZ
ABC
12.96351 1.29169 1.17465

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.111 0.640 0.000
N2 0.111 -0.586 0.000
H3 -0.684 1.410 0.000
H4 -0.761 -1.145 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22621.10671.9863
N21.22622.14871.0355
H31.10672.14872.5561
H41.98631.03552.5561

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 122.641 H3 C1 N2 134.103
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.262      
2 N -0.228      
3 H 0.343      
4 H 0.147      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.066 0.232 0.000 2.079
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.605 0.509 0.000
y 0.509 -11.427 0.000
z 0.000 0.000 -12.958
Traceless
 xyz
x -0.413 0.509 0.000
y 0.509 1.355 0.000
z 0.000 0.000 -0.942
Polar
3z2-r2-1.884
x2-y2-1.178
xy0.509
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.367 0.181 0.000
y 0.181 4.939 0.000
z 0.000 0.000 2.537


<r2> (average value of r2) Å2
<r2> 17.070
(<r2>)1/2 4.132

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at PBEPBE/aug-cc-pVTZ
 hartrees
Energy at 0K-93.889980
Energy at 298.15K-93.891305
HF Energy-93.889980
Nuclear repulsion energy28.033924
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 PBEPBE/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' 3329 3307 3.45      
2 A' 2940 2921 25.95      
3 A' 1753 1742 23.93      
4 A' 1149 1142 12.56      
5 A' 884 878 202.57      
6 A" 945 939 98.65      

Unscaled Zero Point Vibrational Energy (zpe) 5500.2 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 5464.5 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 PBEPBE/aug-cc-pVTZ
ABC
13.52778 1.28456 1.17316

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.001 0.651 0.000
N2 -0.001 -0.586 0.000
H3 0.910 1.277 0.000
H4 -0.900 -1.084 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23691.10451.9548
N21.23692.07301.0286
H31.10452.07302.9749
H41.95481.02862.9749

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.992 H3 C1 N2 124.500
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.324      
2 N -0.205      
3 H 0.355      
4 H 0.174      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.371 0.030 0.000 0.372
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.712 3.239 0.000
y 3.239 -11.875 0.000
z 0.000 0.000 -13.025
Traceless
 xyz
x 0.738 3.239 0.000
y 3.239 0.494 0.000
z 0.000 0.000 -1.231
Polar
3z2-r2-2.463
x2-y20.163
xy3.239
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.373 0.188 -0.000
y 0.188 4.687 0.001
z -0.000 0.001 2.596


<r2> (average value of r2) Å2
<r2> 17.012
(<r2>)1/2 4.125