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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G
 hartrees
Energy at 0K-93.526623
Energy at 298.15K-93.527887
HF Energy-93.342312
Nuclear repulsion energy28.420029
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/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' 3534 3357 62.58      
2 A' 2983 2834 709.94      
3 A' 2566 2438 358.92      
4 A' 1038 986 52.60      
5 A' 721 685 515.15      
6 A" 994 944 44.00      

Unscaled Zero Point Vibrational Energy (zpe) 5917.3 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 5622.0 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 MP2=FULL/6-31G
ABC
16.71601 1.28028 1.18920

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.098 0.639 0.000
N2 0.098 -0.564 0.000
H3 -0.684 1.428 0.000
H4 -0.588 -1.316 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.20361.11032.0725
N21.20362.13991.0181
H31.11032.13992.7457
H42.07251.01812.7457

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 137.620 H3 C1 N2 135.241
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at MP2=FULL/6-31G
 hartrees
Energy at 0K-93.534952
Energy at 298.15K-93.536289
HF Energy-93.350264
Nuclear repulsion energy28.353075
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/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' 3615 3435 97.55      
2 A' 3043 2892 415.04      
3 A' 2576 2448 597.40      
4 A' 1221 1160 13.75      
5 A' 838 796 603.30      
6 A" 1045 993 266.93      

Unscaled Zero Point Vibrational Energy (zpe) 6169.3 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 5861.4 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 MP2=FULL/6-31G
ABC
15.99318 1.28904 1.19290

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.008 0.649 0.000
N2 0.008 -0.566 0.000
H3 -0.897 1.283 0.000
H4 0.791 -1.213 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.21541.10472.0204
N21.21542.05851.0159
H31.10472.05853.0132
H42.02041.01593.0132

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 129.555 H3 C1 N2 124.990
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability