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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: CCSD(T)=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(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-93.830139
Energy at 298.15K-93.831439
HF Energy-93.431770
Nuclear repulsion energy28.240530
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(T)=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' 3367 3225        
2 A' 3039 2911        
3 A' 1856 1778        
4 A' 1038 994        
5 A' 862 825        
6 A" 916 878        

Unscaled Zero Point Vibrational Energy (zpe) 5538.3 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 5305.7 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 CCSD(T)=FULL/cc-pVTZ
ABC
13.04255 1.30385 1.18535

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.111 0.637 0.000
N2 0.111 -0.588 0.000
H3 -0.667 1.400 0.000
H4 -0.771 -1.105 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.22601.08931.9528
N21.22602.13501.0219
H31.08932.13502.5067
H41.95281.02192.5067

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 120.354 H3 C1 N2 134.407
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CCSD(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-93.837744
Energy at 298.15K-93.839092
HF Energy-93.437122
Nuclear repulsion energy28.164779
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(T)=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' 3483 3337        
2 A' 3081 2952        
3 A' 1808 1732        
4 A' 1209 1158        
5 A' 910 872        
6 A" 993 951        

Unscaled Zero Point Vibrational Energy (zpe) 5741.6 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 5500.5 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 CCSD(T)=FULL/cc-pVTZ
ABC
13.69136 1.29413 1.18237

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 0.649 0.000
N2 0.001 -0.587 0.000
H3 0.892 1.273 0.000
H4 -0.901 -1.057 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.23621.08751.9294
N21.23622.06211.0164
H31.08752.06212.9392
H41.92941.01642.9392

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 117.521 H3 C1 N2 124.989
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability