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All results from a given calculation for CH3CHNH (ethanimine)

using model chemistry: QCISD(T)/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes CS NH down 1A'

Conformer 1 (CS NH up)

Jump to S1C2
Vibrational Frequencies calculated at QCISD(T)/TZVP
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/TZVP
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/TZVP
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS NH down)

Jump to S1C1
Energy calculated at QCISD(T)/TZVP
 hartrees
Energy at 0K-133.640104
Energy at 298.15K-133.645536
HF Energy-133.118719
Nuclear repulsion energy70.644780
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 QCISD(T)/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' 3399 3274        
2 A' 3133 3017        
3 A' 3106 2992        
4 A' 3039 2927        
5 A' 1686 1624        
6 A' 1498 1443        
7 A' 1451 1398        
8 A' 1418 1366        
9 A' 1290 1242        
10 A' 1077 1037        
11 A' 912 878        
12 A' 489 471        
13 A" 3113 2998        
14 A" 1480 1425        
15 A" 1149 1107        
16 A" 1074 1034        
17 A" 673 648        
18 A" 169 163        

Unscaled Zero Point Vibrational Energy (zpe) 15076.7 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 14521.9 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 QCISD(T)/TZVP
ABC
1.67123 0.32594 0.28735

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.026 -0.617 0.000
C2 0.000 0.487 0.000
N3 1.274 0.368 0.000
H4 -0.545 -1.599 0.000
H5 -1.668 -0.536 0.883
H6 -1.668 -0.536 -0.883
H7 -0.397 1.505 0.000
H8 1.515 -0.630 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7 H8
C11.50742.50271.09351.09461.09462.21372.5415
C21.50741.28002.15572.14682.14681.09271.8825
N32.50271.28002.67903.20253.20252.02121.0268
H41.09352.15572.67901.78111.78113.10752.2761
H51.09462.14683.20251.78111.76572.56173.3050
H61.09462.14683.20251.78111.76572.56173.3050
H72.21371.09272.02123.10752.56172.56172.8661
H82.54151.88251.02682.27613.30503.30502.8661

picture of ethanimine state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 127.575 C1 C2 H7 115.811
C2 C1 H4 110.952 C2 C1 H5 110.179
C2 C1 H6 110.179 C2 N3 H8 108.891
N3 C2 H7 116.614 H4 C1 H5 108.969
H4 C1 H6 108.969 H5 C1 H6 107.514
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability