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All results from a given calculation for HCNH (methyleneazane)

using model chemistry: CCSD=FULL/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-93.722539
Energy at 298.15K-93.723840
HF Energy-93.411745
Nuclear repulsion energy27.889295
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/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3354 3354 0.85      
2 A' 3026 3026 42.67      
3 A' 1802 1802 29.68      
4 A' 1054 1054 132.15      
5 A' 877 877 88.34      
6 A" 895 895 2.78      

Unscaled Zero Point Vibrational Energy (zpe) 5504.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5504.0 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/aug-cc-pVDZ
ABC
12.35966 1.27713 1.15753

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.114 0.644 0.000
N2 0.114 -0.599 0.000
H3 -0.683 1.414 0.000
H4 -0.795 -1.087 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.24281.10741.9548
N21.24282.16421.0315
H31.10742.16422.5028
H41.95481.03152.5028

picture of methyleneazane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.229 H3 C1 N2 134.025
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CCSD=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-93.730642
Energy at 298.15K-93.731990
HF Energy-93.417186
Nuclear repulsion energy27.841983
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/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3467 3467 7.52      
2 A' 3074 3074 22.21      
3 A' 1770 1770 31.70      
4 A' 1208 1208 13.66      
5 A' 919 919 209.77      
6 A" 980 980 97.97      

Unscaled Zero Point Vibrational Energy (zpe) 5708.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5708.3 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/aug-cc-pVDZ
ABC
13.19015 1.26716 1.15609

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 0.655 0.000
N2 0.001 -0.595 0.000
H3 0.907 1.289 0.000
H4 -0.917 -1.054 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.25051.10551.9402
N21.25052.09051.0262
H31.10552.09052.9690
H41.94021.02622.9690

picture of methyleneazane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 116.559 H3 C1 N2 124.967
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability