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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: MP2=FULL/6-311G**

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/6-311G**
 hartrees
Energy at 0K-93.741979
Energy at 298.15K-93.743228
HF Energy-93.418415
Nuclear repulsion energy28.575047
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/6-311G**
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' 3472 3293 15.42      
2 A' 3046 2890 307.80      
3 A' 2444 2318 384.89      
4 A' 1025 972 99.81      
5 A' 711 675 306.36      
6 A" 929 882 6.83      

Unscaled Zero Point Vibrational Energy (zpe) 5813.7 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 5514.9 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/6-311G**
ABC
13.73999 1.33103 1.21348

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.108 0.627 0.000
N2 0.108 -0.575 0.000
H3 -0.667 1.410 0.000
H4 -0.737 -1.148 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.20111.10181.9654
N21.20112.13051.0209
H31.10182.13052.5592
H41.96541.02092.5592

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 124.182 H3 C1 N2 135.327
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at MP2=FULL/6-311G**
 hartrees
Energy at 0K-93.750993
Energy at 298.15K-93.752308
HF Energy-93.424455
Nuclear repulsion energy28.489455
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/6-311G**
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' 3580 3396 60.77      
2 A' 3080 2922 216.69      
3 A' 2475 2348 454.84      
4 A' 1201 1140 5.70      
5 A' 807 765 454.46      
6 A" 968 918 192.23      

Unscaled Zero Point Vibrational Energy (zpe) 6055.8 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 5744.5 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/6-311G**
ABC
14.27596 1.32384 1.21149

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.003 0.641 0.000
N2 -0.003 -0.571 0.000
H3 0.907 1.258 0.000
H4 -0.865 -1.110 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.21191.10021.9514
N21.21192.04341.0161
H31.10022.04342.9579
H41.95141.01612.9579

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 122.042 H3 C1 N2 124.133
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability