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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: MP4=FULL/aug-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 MP4=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-93.729456
Energy at 298.15K-93.730716
HF Energy-93.411067
Nuclear repulsion energy28.199911
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/aug-cc-pVDZ
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' 3384 3300        
2 A' 2976 2902        
3 A' 2296 2239        
4 A' 1005 980        
5 A' 771 752        
6 A" 888 866        

Unscaled Zero Point Vibrational Energy (zpe) 5659.8 cm-1
Scaled (by 0.9752) Zero Point Vibrational Energy (zpe) 5519.4 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/aug-cc-pVDZ
ABC
12.98186 1.30188 1.18322

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.111 0.635 0.000
N2 0.111 -0.585 0.000
H3 -0.679 1.419 0.000
H4 -0.764 -1.130 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22011.11381.9693
N21.22012.15501.0304
H31.11382.15502.5505
H41.96931.03042.5505

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 121.877 H3 C1 N2 134.801
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at MP4=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-93.738442
Energy at 298.15K-93.739756
HF Energy-93.416672
Nuclear repulsion energy28.142734
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/aug-cc-pVDZ
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' 3498 3411        
2 A' 3020 2945        
3 A' 2335 2277        
4 A' 1175 1146        
5 A' 824 803        
6 A" 945 921        

Unscaled Zero Point Vibrational Energy (zpe) 5897.9 cm-1
Scaled (by 0.9752) Zero Point Vibrational Energy (zpe) 5751.7 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 MP4=FULL/aug-cc-pVDZ
ABC
13.73488 1.29375 1.18238

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.003 0.649 0.000
N2 -0.003 -0.580 0.000
H3 0.918 1.273 0.000
H4 -0.884 -1.104 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22871.11251.9613
N21.22872.06911.0250
H31.11252.06912.9824
H41.96131.02502.9824

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 120.707 H3 C1 N2 124.121
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability