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All results from a given calculation for CH3CHNOH (Acetaldoxime)

using model chemistry: MP2=FULL/STO-3G

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 MP2=FULL/STO-3G
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/STO-3G
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-205.460345
Energy at 298.15K-205.466071
HF Energy-205.231394
Nuclear repulsion energy116.357534
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 MP2=FULL/STO-3G
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' 3853 3425 15.50      
2 A' 3565 3169 0.01      
3 A' 3493 3105 4.83      
4 A' 3371 2996 0.94      
5 A' 1729 1537 0.11      
6 A' 1695 1507 3.99      
7 A' 1591 1414 3.12      
8 A' 1531 1361 16.17      
9 A' 1434 1275 27.68      
10 A' 1238 1101 4.83      
11 A' 1094 972 32.45      
12 A' 983 874 1.04      
13 A' 673 599 4.76      
14 A' 294 261 0.54      
15 A" 3537 3144 0.94      
16 A" 1715 1524 3.41      
17 A" 1165 1035 0.00      
18 A" 875 777 3.35      
19 A" 480 427 17.30      
20 A" 376 334 47.11      
21 A" 47 42 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 17368.5 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 15438.8 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 MP2=FULL/STO-3G
ABC
0.55096 0.20376 0.15310

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.482 0.484 0.000
C2 0.000 0.896 0.000
N3 1.077 0.094 0.000
O4 0.640 -1.292 0.000
H5 1.559 -1.736 0.000
H6 -1.575 -0.615 0.000
H7 -1.993 0.885 0.894
H8 -1.993 0.885 -0.894
H9 0.243 1.974 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.53882.58872.76733.76511.10241.10481.10482.2795
C21.53881.34272.28033.05912.18232.18432.18431.1044
N32.58871.34271.45391.89252.74453.29373.29372.0563
O42.76732.28031.45391.02062.31553.53163.53163.2902
H53.76513.05911.89251.02063.32794.50394.50393.9362
H61.10242.18232.74452.31553.32791.79561.79563.1627
H71.10482.18433.29373.53164.50391.79561.78732.6423
H81.10482.18433.29373.53164.50391.79561.78732.6423
H92.27951.10442.05633.29023.93623.16272.64232.6423

picture of Acetaldoxime state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 127.766 C1 C2 H9 118.242
C2 C1 H6 110.341 C2 C1 H7 110.357
C2 C1 H8 110.357 C2 N3 O4 109.183
N3 C2 H9 113.992 N3 O4 H5 98.251
H6 C1 H7 108.878 H6 C1 H8 108.878
H7 C1 H8 107.973
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability