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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: CCSD=FULL/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 CCSD=FULL/TZVP
 hartrees
Energy at 0K-93.770733
Energy at 298.15K-93.772033
HF Energy-93.427631
Nuclear repulsion energy28.201068
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 CCSD=FULL/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' 3365 3188 1.80      
2 A' 3065 2904 44.27      
3 A' 1831 1735 28.86      
4 A' 1064 1008 105.59      
5 A' 848 804 129.36      
6 A" 925 877 4.62      

Unscaled Zero Point Vibrational Energy (zpe) 5548.9 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 5257.6 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 CCSD=FULL/TZVP
ABC
12.78057 1.30408 1.18334

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.112 0.637 0.000
N2 0.112 -0.591 0.000
H3 -0.668 1.403 0.000
H4 -0.785 -1.087 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22761.09281.9430
N21.22762.14061.0248
H31.09282.14062.4925
H41.94301.02482.4925

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.947 H3 C1 N2 134.513
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CCSD=FULL/TZVP
 hartrees
Energy at 0K-93.779462
Energy at 298.15K-93.780816
HF Energy-93.433624
Nuclear repulsion energy28.148313
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 CCSD=FULL/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' 3489 3306 4.90      
2 A' 3113 2950 22.95      
3 A' 1794 1700 30.36      
4 A' 1230 1166 10.09      
5 A' 917 869 222.48      
6 A" 1007 954 107.84      

Unscaled Zero Point Vibrational Energy (zpe) 5775.6 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 5472.4 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 CCSD=FULL/TZVP
ABC
13.61949 1.29374 1.18151

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 0.648 0.000
N2 0.001 -0.588 0.000
H3 0.890 1.280 0.000
H4 -0.907 -1.049 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23601.09051.9250
N21.23602.06911.0189
H31.09052.06912.9422
H41.92501.01892.9422

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 116.904 H3 C1 N2 125.468
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability