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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: MP4/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/aug-cc-pVDZ
 hartrees
Energy at 0K-93.724600
Energy at 298.15K-93.725861
HF Energy-93.411062
Nuclear repulsion energy28.184777
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 MP4/6-31G*
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' 3359 3281        
2 A' 2989 2920        
3 A' 2343 2289        
4 A' 1046 1022        
5 A' 792 774        
6 A" 947 925        

Unscaled Zero Point Vibrational Energy (zpe) 5738.2 cm-1
Scaled (by 0.9769) Zero Point Vibrational Energy (zpe) 5605.6 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/aug-cc-pVDZ
ABC
12.93862 1.30097 1.18211

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/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 -0.586 0.000
H3 -0.680 1.420 0.000
H4 -0.766 -1.128 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22071.11471.9692
N21.22072.15641.0311
H31.11472.15642.5500
H41.96921.03112.5500

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 121.742 H3 C1 N2 134.790
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at MP4/aug-cc-pVDZ
 hartrees
Energy at 0K-93.733597
Energy at 298.15K-93.734911
HF Energy-93.416634
Nuclear repulsion energy28.128112
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 MP4/6-31G*
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' 3490 3409        
2 A' 3034 2964        
3 A' 2401 2346        
4 A' 1226 1197        
5 A' 856 836        
6 A" 991 968        

Unscaled Zero Point Vibrational Energy (zpe) 5999.2 cm-1
Scaled (by 0.9769) Zero Point Vibrational Energy (zpe) 5860.6 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/aug-cc-pVDZ
ABC
13.69781 1.29277 1.18128

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/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 0.919 1.273 0.000
H4 -0.885 -1.103 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22931.11351.9618
N21.22932.07021.0257
H31.11352.07022.9838
H41.96181.02572.9838

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 120.642 H3 C1 N2 124.097
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability