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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: MP4/TZVP

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/TZVP
 hartrees
Energy at 0K-93.743626
Energy at 298.15K-93.744876
HF Energy-93.426603
Nuclear repulsion energy28.477588
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/TZVP
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' 3394 3268        
2 A' 3007 2896        
3 A' 2328 2242        
4 A' 1017 979        
5 A' 725 698        
6 A" 917 883        

Unscaled Zero Point Vibrational Energy (zpe) 5694.2 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 5482.9 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 MP4/TZVP
ABC
13.59211 1.32263 1.20534

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.109 0.630 0.000
N2 0.109 -0.577 0.000
H3 -0.668 1.409 0.000
H4 -0.743 -1.146 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.20671.10021.9691
N21.20672.13281.0240
H31.10022.13282.5564
H41.96911.02402.5564

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 123.738 H3 C1 N2 135.138
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at MP4/TZVP
 hartrees
Energy at 0K-93.753442
Energy at 298.15K-93.754764
HF Energy-93.432951
Nuclear repulsion energy28.410058
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/TZVP
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' 3519 3388        
2 A' 3057 2944        
3 A' 2353 2266        
4 A' 1206 1161        
5 A' 822 791        
6 A" 976 940        

Unscaled Zero Point Vibrational Energy (zpe) 5966.5 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 5745.1 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/TZVP
ABC
14.19087 1.31620 1.20448

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.002 0.643 0.000
N2 -0.002 -0.574 0.000
H3 0.903 1.264 0.000
H4 -0.872 -1.103 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.21681.09771.9505
N21.21682.04871.0182
H31.09772.04872.9585
H41.95051.01822.9585

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 121.290 H3 C1 N2 124.458
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability