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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: B3PW91/cc-pVDZ

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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-93.928019
Energy at 298.15K-93.929310
HF Energy-93.928019
Nuclear repulsion energy28.088461
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 B3PW91/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3286 3171 5.99      
2 A' 2974 2870 52.93      
3 A' 1868 1803 25.59      
4 A' 1006 971 148.13      
5 A' 872 841 93.72      
6 A" 897 866 3.21      

Unscaled Zero Point Vibrational Energy (zpe) 5452.0 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 5261.1 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 B3PW91/cc-pVDZ
ABC
12.58340 1.29635 1.17527

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.113 0.637 0.000
N2 0.113 -0.591 0.000
H3 -0.678 1.416 0.000
H4 -0.787 -1.103 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22791.11001.9584
N21.22792.15721.0348
H31.11002.15722.5213
H41.95841.03482.5213

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.642 H3 C1 N2 134.589
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.056      
2 N -0.138      
3 H 0.076      
4 H 0.118      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.106 0.337 0.000 2.133
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.904 0.574 0.000
y 0.574 -10.992 0.000
z 0.000 0.000 -12.385
Traceless
 xyz
x -0.216 0.574 0.000
y 0.574 1.153 0.000
z 0.000 0.000 -0.938
Polar
3z2-r2-1.875
x2-y2-0.913
xy0.574
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.095 0.061 0.000
y 0.061 3.845 0.000
z 0.000 0.000 1.337


<r2> (average value of r2) Å2
<r2> 16.689
(<r2>)1/2 4.085

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at B3PW91/cc-pVDZ
 hartrees
Energy at 0K-93.935388
Energy at 298.15K-93.936727
HF Energy-93.935388
Nuclear repulsion energy28.014114
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 B3PW91/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3415 3295 5.59      
2 A' 3020 2914 29.12      
3 A' 1819 1755 24.96      
4 A' 1196 1154 9.08      
5 A' 904 872 212.62      
6 A" 969 935 109.03      

Unscaled Zero Point Vibrational Energy (zpe) 5660.7 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 5462.6 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 B3PW91/cc-pVDZ
ABC
13.10102 1.28873 1.17331

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.000 0.650 0.000
N2 -0.000 -0.588 0.000
H3 0.917 1.273 0.000
H4 -0.916 -1.057 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23831.10881.9377
N21.23832.07471.0290
H31.10882.07472.9649
H41.93771.02902.9649

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 117.133 H3 C1 N2 124.153
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.092      
2 N -0.135      
3 H 0.090      
4 H 0.137      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.452 0.095 0.000 0.462
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.043 2.972 0.000
y 2.972 -11.318 0.000
z 0.000 0.000 -12.414
Traceless
 xyz
x 0.823 2.972 0.000
y 2.972 0.411 0.000
z 0.000 0.000 -1.233
Polar
3z2-r2-2.467
x2-y20.275
xy2.972
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.301 0.514 0.000
y 0.514 3.649 0.000
z 0.000 0.000 1.388


<r2> (average value of r2) Å2
<r2> 16.616
(<r2>)1/2 4.076