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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: CCD/6-31G**

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 CCD/6-31G**
 hartrees
Energy at 0K-93.685435
Energy at 298.15K-93.686745
HF Energy-93.398051
Nuclear repulsion energy28.445753
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 CCD/6-31G**
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' 3483 3266 2.72      
2 A' 3089 2896 150.05      
3 A' 2294 2151 269.50      
4 A' 1096 1027 116.57      
5 A' 835 783 185.15      
6 A" 977 916 7.04      

Unscaled Zero Point Vibrational Energy (zpe) 5887.1 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 5519.8 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 CCD/6-31G**
ABC
13.15058 1.32552 1.20414

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.110 0.629 0.000
N2 0.110 -0.583 0.000
H3 -0.661 1.408 0.000
H4 -0.772 -1.099 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.21181.09621.9398
N21.21182.13521.0217
H31.09622.13522.5096
H41.93981.02172.5096

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 120.332 H3 C1 N2 135.320
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CCD/6-31G**
 hartrees
Energy at 0K-93.694026
Energy at 298.15K-93.695374
HF Energy-93.403850
Nuclear repulsion energy28.400586
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 CCD/6-31G**
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' 3591 3367 19.88      
2 A' 3129 2934 120.57      
3 A' 2343 2196 354.16      
4 A' 1242 1164 11.82      
5 A' 891 836 333.01      
6 A" 1013 950 154.66      

Unscaled Zero Point Vibrational Energy (zpe) 6104.5 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 5723.5 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 CCD/6-31G**
ABC
13.98319 1.31738 1.20396

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.000 0.641 0.000
N2 -0.000 -0.578 0.000
H3 0.895 1.271 0.000
H4 -0.888 -1.073 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.21921.09461.9310
N21.21922.05431.0168
H31.09462.05432.9456
H41.93101.01682.9456

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.168 H3 C1 N2 125.122
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability