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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: MP2=FULL/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 MP2=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-93.805756
Energy at 298.15K-93.806996
HF Energy-93.432060
Nuclear repulsion energy28.666616
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 MP2=FULL/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' 3485 3315 27.79      
2 A' 3069 2920 232.03      
3 A' 2405 2288 411.20      
4 A' 982 935 89.80      
5 A' 723 688 314.67      
6 A" 898 854 5.40      

Unscaled Zero Point Vibrational Energy (zpe) 5780.8 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 5499.9 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 MP2=FULL/aug-cc-pVTZ
ABC
14.29409 1.33277 1.21910

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.106 0.628 0.000
N2 0.106 -0.570 0.000
H3 -0.666 1.399 0.000
H4 -0.710 -1.175 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.19821.09101.9793
N21.19822.11491.0159
H31.09102.11492.5742
H41.97931.01592.5742

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 126.544 H3 C1 N2 134.942
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at MP2=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-93.814040
Energy at 298.15K-93.815352
HF Energy-93.438253
Nuclear repulsion energy28.593119
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 MP2=FULL/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' 3573 3400 68.25      
2 A' 3112 2961 130.86      
3 A' 2386 2270 417.23      
4 A' 1169 1112 7.32      
5 A' 814 775 425.95      
6 A" 949 902 161.58      

Unscaled Zero Point Vibrational Energy (zpe) 6001.0 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 5709.3 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 MP2=FULL/aug-cc-pVTZ
ABC
14.84837 1.32707 1.21819

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.003 0.640 0.000
N2 -0.003 -0.568 0.000
H3 0.892 1.260 0.000
H4 -0.848 -1.124 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.20831.08891.9564
N21.20832.03541.0117
H31.08892.03542.9517
H41.95641.01172.9517

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 123.345 H3 C1 N2 124.673
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability