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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: CCD/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 CCD/6-311G*
 hartrees
Energy at 0K-93.701963
Energy at 298.15K-93.703261
HF Energy-93.413066
Nuclear repulsion energy28.475215
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 CCD/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' 3415 3262 1.01      
2 A' 3006 2871 165.18      
3 A' 2276 2174 273.85      
4 A' 1058 1011 132.78      
5 A' 826 789 208.05      
6 A" 955 912 6.36      

Unscaled Zero Point Vibrational Energy (zpe) 5768.1 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 5509.1 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 CCD/6-311G*
ABC
13.10573 1.32985 1.20734

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.110 0.628 0.000
N2 0.110 -0.580 0.000
H3 -0.670 1.407 0.000
H4 -0.766 -1.109 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.20801.10281.9448
N21.20802.13501.0232
H31.10282.13502.5173
H41.94481.02322.5173

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 121.072 H3 C1 N2 134.967
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CCD/6-311G*
 hartrees
Energy at 0K-93.711040
Energy at 298.15K-93.712381
HF Energy-93.419257
Nuclear repulsion energy28.416602
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 CCD/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' 3540 3381 19.66      
2 A' 3046 2909 118.14      
3 A' 2314 2210 343.87      
4 A' 1235 1179 16.17      
5 A' 880 840 376.53      
6 A" 989 944 183.24      

Unscaled Zero Point Vibrational Energy (zpe) 6001.8 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 5732.3 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 CCD/6-311G*
ABC
13.99409 1.31942 1.20574

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.002 0.641 0.000
N2 -0.002 -0.576 0.000
H3 0.903 1.268 0.000
H4 -0.882 -1.085 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.21651.10111.9374
N21.21652.05381.0171
H31.10112.05382.9536
H41.93741.01712.9536

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 120.046 H3 C1 N2 124.716
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability