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All results from a given calculation for CH3CHNOH (Acetaldoxime)

using model chemistry: B2PLYP=FULL/3-21G*

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 B2PLYP=FULL/3-21G*
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULL/3-21G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at B2PLYP=FULL/3-21G*
 hartrees
Energy at 0K-207.694581
Energy at 298.15K-207.700405
HF Energy-207.549475
Nuclear repulsion energy117.760658
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 B2PLYP=FULL/3-21G*
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' 3507 3507 21.58      
2 A' 3213 3213 3.16      
3 A' 3184 3184 11.47      
4 A' 3081 3081 9.85      
5 A' 1662 1662 2.08      
6 A' 1558 1558 13.97      
7 A' 1467 1467 20.50      
8 A' 1390 1390 0.53      
9 A' 1330 1330 65.63      
10 A' 1163 1163 20.14      
11 A' 924 924 44.48      
12 A' 873 873 43.03      
13 A' 660 660 13.66      
14 A' 318 318 2.38      
15 A" 3128 3128 11.95      
16 A" 1584 1584 13.86      
17 A" 1125 1125 0.10      
18 A" 885 885 14.57      
19 A" 478 478 19.57      
20 A" 336 336 129.69      
21 A" 13 13 1.53      

Unscaled Zero Point Vibrational Energy (zpe) 15938.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15938.8 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 B2PLYP=FULL/3-21G*
ABC
0.55140 0.21124 0.15722

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.446 0.473 0.000
C2 0.000 0.891 0.000
N3 1.043 0.131 0.000
O4 0.630 -1.304 0.000
H5 1.524 -1.738 0.000
H6 -1.510 -0.613 0.000
H7 -1.953 0.871 0.884
H8 -1.953 0.871 -0.884
H9 0.230 1.951 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.50502.51212.73223.70191.08761.09481.09482.2352
C21.50501.29052.28343.03832.13122.14432.14431.0855
N32.51211.29051.49321.92942.65933.21063.21061.9940
O42.73222.28341.49320.99362.24893.49083.49083.2801
H53.70193.03831.92940.99363.23584.43604.43603.9095
H61.08762.13122.65932.24893.23581.78341.78343.0994
H71.09482.14433.21063.49084.43601.78341.76892.5919
H81.09482.14433.21063.49084.43601.78341.76892.5919
H92.23521.08551.99403.28013.90953.09942.59192.5919

picture of Acetaldoxime state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 127.789 C1 C2 H9 118.375
C2 C1 H6 109.531 C2 C1 H7 110.141
C2 C1 H8 110.141 C2 N3 O4 110.017
N3 C2 H9 113.836 N3 O4 H5 99.814
H6 C1 H7 109.611 H6 C1 H8 109.611
H7 C1 H8 107.782
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability