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All results from a given calculation for CH3CHNOH (Acetaldoxime)

using model chemistry: MP2=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 MP2=FULL/6-31G
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/6-31G
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2=FULL/6-31G
 hartrees
Energy at 0K-208.216977
Energy at 298.15K 
HF Energy-207.782652
Nuclear repulsion energy116.753043
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/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' 3633 3451 43.81      
2 A' 3206 3046 10.43      
3 A' 3191 3032 5.65      
4 A' 3068 2915 13.72      
5 A' 1664 1581 0.14      
6 A' 1554 1477 10.39      
7 A' 1481 1407 14.03      
8 A' 1393 1323 0.87      
9 A' 1309 1244 66.12      
10 A' 1176 1117 20.41      
11 A' 943 896 18.89      
12 A' 766 728 47.18      
13 A' 645 613 25.97      
14 A' 308 293 3.06      
15 A" 3135 2979 16.31      
16 A" 1565 1487 13.55      
17 A" 1130 1073 0.68      
18 A" 882 838 12.62      
19 A" 466 443 33.49      
20 A" 358 340 154.82      
21 A" 82i 78i 0.40      

Unscaled Zero Point Vibrational Energy (zpe) 15894.9 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 15101.7 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/6-31G
ABC
0.55051 0.20458 0.15346

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.457 0.504 0.000
C2 0.000 0.893 0.000
N3 1.051 0.117 0.000
O4 0.637 -1.328 0.000
H5 1.509 -1.778 0.000
H6 -1.566 -0.584 0.000
H7 -1.959 0.916 0.887
H8 -1.959 0.916 -0.887
H9 0.263 1.952 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.50842.53852.78273.74301.09341.09951.09952.2487
C21.50841.30692.31063.06822.15262.15072.15071.0909
N32.53851.30691.50301.94972.70953.23863.23861.9970
O42.78272.31061.50300.98152.32543.54453.54453.3009
H53.74303.06821.94970.98153.29904.48074.48073.9326
H61.09342.15262.70952.32543.29901.78671.78673.1267
H71.09952.15073.23863.54454.48071.78671.77472.6074
H81.09952.15073.23863.54454.48071.78671.77472.6074
H92.24871.09091.99703.30093.93263.12672.60742.6074

picture of Acetaldoxime state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 128.618 C1 C2 H9 118.914
C2 C1 H6 110.641 C2 C1 H7 110.128
C2 C1 H8 110.128 C2 N3 O4 110.441
N3 C2 H9 112.468 N3 O4 H5 101.318
H6 C1 H7 109.131 H6 C1 H8 109.131
H7 C1 H8 107.619
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability