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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: CCSD=FULL/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-93.813498
Energy at 298.15K-93.814812
HF Energy-93.432036
Nuclear repulsion energy28.318708
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/cc-pVTZ
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' 3408 3231 2.28      
2 A' 3073 2914 38.30      
3 A' 1862 1766 26.47      
4 A' 1065 1010 131.28      
5 A' 879 833 112.91      
6 A" 939 891 3.54      

Unscaled Zero Point Vibrational Energy (zpe) 5613.3 cm-1
Scaled (by 0.9481) Zero Point Vibrational Energy (zpe) 5322.0 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/cc-pVTZ
ABC
13.03982 1.31225 1.19227

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.111 0.635 0.000
N2 0.111 -0.588 0.000
H3 -0.664 1.398 0.000
H4 -0.775 -1.092 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22281.08671.9411
N21.22282.13101.0191
H31.08672.13102.4924
H41.94111.01912.4924

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.679 H3 C1 N2 134.564
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CCSD=FULL/cc-pVTZ
 hartrees
Energy at 0K-93.820778
Energy at 298.15K-93.822134
HF Energy-93.437419
Nuclear repulsion energy28.253406
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/cc-pVTZ
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' 3515 3333 9.76      
2 A' 3108 2947 20.98      
3 A' 1821 1726 29.42      
4 A' 1221 1157 10.24      
5 A' 927 879 224.51      
6 A" 1010 957 103.70      

Unscaled Zero Point Vibrational Energy (zpe) 5800.4 cm-1
Scaled (by 0.9481) Zero Point Vibrational Energy (zpe) 5499.4 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/cc-pVTZ
ABC
13.84667 1.30144 1.18962

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 0.646 0.000
N2 0.001 -0.586 0.000
H3 0.883 1.278 0.000
H4 -0.900 -1.051 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23161.08541.9211
N21.23162.06221.0141
H31.08542.06222.9334
H41.92111.01412.9334

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 117.300 H3 C1 N2 125.641
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability