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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: CID/3-21G*

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 CID/3-21G*
 hartrees
Energy at 0K-93.042850
Energy at 298.15K-93.044163
HF Energy-92.862210
Nuclear repulsion energy28.408708
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 CID/3-21G*
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' 3349 3116 2.13      
2 A' 2994 2786 144.49      
3 A' 2279 2120 182.22      
4 A' 1056 983 77.23      
5 A' 828 771 342.43      
6 A" 1037 965 15.15      

Unscaled Zero Point Vibrational Energy (zpe) 5771.6 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 5370.5 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 CID/3-21G*
ABC
15.11313 1.29577 1.19345

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.103 0.634 0.000
N2 0.103 -0.573 0.000
H3 -0.649 1.436 0.000
H4 -0.690 -1.225 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.20681.09962.0211
N21.20682.14531.0267
H31.09962.14532.6619
H42.02111.02672.6619

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 129.438 H3 C1 N2 136.875
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CID/3-21G*
 hartrees
Energy at 0K-93.049599
Energy at 298.15K-93.050959
HF Energy-92.867899
Nuclear repulsion energy28.340547
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 CID/3-21G*
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' 3468 3227 16.01      
2 A' 3043 2832 100.96      
3 A' 2289 2130 249.14      
4 A' 1236 1151 24.40      
5 A' 910 847 411.86      
6 A" 1061 987 181.04      

Unscaled Zero Point Vibrational Energy (zpe) 6003.6 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 5586.4 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 CID/3-21G*
ABC
15.16845 1.29683 1.19469

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.003 0.645 0.000
N2 -0.003 -0.573 0.000
H3 0.882 1.294 0.000
H4 -0.847 -1.149 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.21771.09731.9824
N21.21772.06621.0221
H31.09732.06622.9929
H41.98241.02212.9929

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 124.291 H3 C1 N2 126.302
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability