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All results from a given calculation for CH3CHNH (ethanimine)

using model chemistry: QCISD/6-31G(2df,p)

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/6-31G(2df,p)
Rotational Constants (cm-1) from geometry optimized at QCISD/6-31G(2df,p)
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS NH down)

Jump to S1C1
Energy calculated at QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-133.634667
Energy at 298.15K-133.640122
HF Energy-133.090392
Nuclear repulsion energy70.776430
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/6-31G(2df,p)
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' 3473 3290 2.68      
2 A' 3173 3006 22.40      
3 A' 3138 2973 18.70      
4 A' 3078 2916 7.03      
5 A' 1744 1652 50.01      
6 A' 1512 1433 20.95      
7 A' 1453 1376 21.45      
8 A' 1427 1352 3.28      
9 A' 1300 1231 56.00      
10 A' 1082 1025 21.66      
11 A' 925 876 2.80      
12 A' 493 467 7.74      
13 A" 3152 2986 9.60      
14 A" 1505 1426 6.62      
15 A" 1166 1105 40.12      
16 A" 1091 1033 9.68      
17 A" 698 661 9.73      
18 A" 172 163 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 15290.4 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 14486.1 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/6-31G(2df,p)
ABC
1.68182 0.32664 0.28811

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.021 -0.622 0.000
C2 0.000 0.485 0.000
N3 1.269 0.375 0.000
H4 -0.543 -1.604 0.000
H5 -1.667 -0.544 0.880
H6 -1.667 -0.544 -0.880
H7 -0.405 1.500 0.000
H8 1.530 -0.614 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7 H8
C11.50652.49801.09231.09401.09402.20962.5510
C21.50651.27352.15892.14732.14731.09261.8834
N32.49801.27352.68373.19943.19942.01671.0228
H41.09232.15892.68371.77801.77803.10722.2974
H51.09402.14733.19941.77801.75962.55763.3160
H61.09402.14733.19941.77801.75962.55763.3160
H72.20961.09262.01673.10722.55762.55762.8655
H82.55101.88341.02282.29743.31603.31602.8655

picture of ethanimine state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 127.737 C1 C2 H7 115.535
C2 C1 H4 111.355 C2 C1 H5 110.316
C2 C1 H6 110.316 C2 N3 H8 109.726
N3 C2 H7 116.727 H4 C1 H5 108.831
H4 C1 H6 108.831 H5 C1 H6 107.075
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability