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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: CBS-Q

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 CBS-Q
 hartrees
Energy at 0K-93.806049
Energy at 298.15K-93.802159
HF Energy-93.392783
Nuclear repulsion energy28.239792
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 CBS-Q
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' 3589 3589 2.17      
2 A' 3232 3232 31.95      
3 A' 1671 1671 0.91      
4 A' 1264 1264 120.77      
5 A' 1009 1009 41.12      
6 A" 1060 1060 9.03      

Unscaled Zero Point Vibrational Energy (zpe) 5912.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5912.7 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 CBS-Q
ABC
13.81235 1.32010 1.20494

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.112 0.633 0.000
N2 0.112 -0.593 0.000
H3 -0.667 1.391 0.000
H4 -0.790 -1.038 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22561.08761.8994
N21.22562.13161.0066
H31.08762.13162.4328
H41.89941.00662.4328

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 116.279 H3 C1 N2 134.210
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CBS-Q
 hartrees
Energy at 0K-93.813188
Energy at 298.15K-93.814617
HF Energy-93.398441
Nuclear repulsion energy28.279953
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 CBS-Q
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' 3683 3683 2.73      
2 A' 3273 3273 19.80      
3 A' 1710 1710 13.74      
4 A' 1326 1326 18.51      
5 A' 1029 1029 170.15      
6 A" 1096 1096 98.85      

Unscaled Zero Point Vibrational Energy (zpe) 6058.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6058.6 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 CBS-Q
ABC
14.15289 1.31656 1.20451

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.002 0.641 0.000
N2 0.002 -0.589 0.000
H3 0.878 1.280 0.000
H4 -0.910 -1.004 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22991.08421.8810
N21.22992.06381.0027
H31.08422.06382.9007
H41.88101.00272.9007

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 114.431 H3 C1 N2 126.100
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability