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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: MP4=FULL/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 MP4=FULL/cc-pVTZ
 hartrees
Energy at 0K-93.826919
Energy at 298.15K-93.828188
HF Energy-93.431042
Nuclear repulsion energy28.541698
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 MP4=FULL/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' 3424 3297        
2 A' 3025 2913        
3 A' 2320 2234        
4 A' 1013 976        
5 A' 773 745        
6 A" 918 884        

Unscaled Zero Point Vibrational Energy (zpe) 5736.9 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 5524.0 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 MP4=FULL/cc-pVTZ
ABC
13.78517 1.32622 1.20983

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.108 0.629 0.000
N2 0.108 -0.577 0.000
H3 -0.660 1.407 0.000
H4 -0.740 -1.142 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.20571.09291.9630
N21.20572.12691.0189
H31.09292.12692.5494
H41.96301.01892.5494

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 123.657 H3 C1 N2 135.371
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at MP4=FULL/cc-pVTZ
 hartrees
Energy at 0K-93.834963
Energy at 298.15K-93.836288
HF Energy-93.436748
Nuclear repulsion energy28.466931
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 MP4=FULL/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' 3534 3403        
2 A' 3052 2939        
3 A' 2323 2237        
4 A' 1189 1145        
5 A' 838 807        
6 A" 967 931        

Unscaled Zero Point Vibrational Energy (zpe) 5951.3 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 5730.5 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 MP4=FULL/cc-pVTZ
ABC
14.35840 1.31933 1.20831

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.002 0.642 0.000
N2 -0.002 -0.574 0.000
H3 0.895 1.265 0.000
H4 -0.870 -1.098 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.21571.09201.9440
N21.21572.04611.0136
H31.09202.04612.9491
H41.94401.01362.9491

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 121.122 H3 C1 N2 124.822
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability