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All results from a given calculation for CH3CHNOH (Acetaldoxime)

using model chemistry: MP4=FULL/6-31G*

19 10 17 12 22

States and conformations

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

Conformer 1 (CS trans)

Jump to S1C2
Vibrational Frequencies calculated at MP4=FULL/6-31G*
Rotational Constants (cm-1) from geometry optimized at MP4=FULL/6-31G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-31G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP4=FULL/6-31G*
 hartrees
Energy at 0K-208.551861
Energy at 298.15K 
HF Energy-207.878179
Nuclear repulsion energy118.970829
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 MP4=FULL/6-31G*
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' 3740 3596        
2 A' 3198 3075        
3 A' 3177 3055        
4 A' 3066 2948        
5 A' 1717 1651        
6 A' 1527 1468        
7 A' 1448 1393        
8 A' 1404 1350        
9 A' 1355 1303        
10 A' 1169 1124        
11 A' 944 908        
12 A' 906 871        
13 A' 670 645        
14 A' 317 305        
15 A" 3129 3009        
16 A" 1535 1476        
17 A" 1088 1046        
18 A" 859 826        
19 A" 488 470        
20 A" 380 365        
21 A" 82i 79i        

Unscaled Zero Point Vibrational Energy (zpe) 16018.5 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 15403.4 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 MP4=FULL/6-31G*
ABC
0.58411 0.21005 0.15910

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.450 0.488 0.000
C2 0.000 0.870 0.000
N3 1.032 0.093 0.000
O4 0.646 -1.278 0.000
H5 1.515 -1.717 0.000
H6 -1.571 -0.598 0.000
H7 -1.948 0.905 0.885
H8 -1.948 0.905 -0.885
H9 0.266 1.929 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.49952.51292.74003.69481.09221.09821.09822.2410
C21.49951.29142.24232.99772.14952.14032.14031.0920
N32.51291.29141.42411.87352.69243.21313.21311.9889
O42.74002.24231.42410.97412.31803.50383.50383.2288
H53.69482.99771.87350.97413.28224.43334.43333.8538
H61.09222.14952.69242.31803.28221.78471.78473.1237
H71.09822.14033.21313.50384.43331.78471.77012.5953
H81.09822.14033.21313.50384.43331.78471.77012.5953
H92.24101.09201.98893.22883.85383.12372.59532.5953

picture of Acetaldoxime state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 128.269 C1 C2 H9 118.872
C2 C1 H6 111.098 C2 C1 H7 109.997
C2 C1 H8 109.997 C2 N3 O4 111.237
N3 C2 H9 112.859 N3 O4 H5 101.082
H6 C1 H7 109.133 H6 C1 H8 109.133
H7 C1 H8 107.399
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability