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All results from a given calculation for CH3CHNOH (Acetaldoxime)

using model chemistry: QCISD/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS trans 1A'
1 2 no CS cis 1A'

Conformer 1 (CS trans)

Jump to S1C2
Energy calculated at QCISD/6-31G**
 hartrees
Energy at 0K-208.562230
Energy at 298.15K-208.568239
HF Energy-207.894075
Nuclear repulsion energy116.929776
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**
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 3895 3667 62.90      
2 A 3219 3030 16.75      
3 A 3196 3009 8.08      
4 A 3108 2926 18.75      
5 A 1762 1659 2.39      
6 A 1544 1454 5.61      
7 A 1487 1400 5.02      
8 A 1445 1360 22.37      
9 A 1315 1238 61.56      
10 A 1184 1114 4.56      
11 A 1038 977 96.01      
12 A 932 877 14.70      
13 A 570 537 15.10      
14 A 328 308 1.73      
15 A 3178 2992 19.51      
16 A 1537 1447 6.36      
17 A 1110 1045 1.04      
18 A 923 868 8.78      
19 A 393 370 142.43      
20 A 285 268 3.44      
21 A 193 181 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 16319.7 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 15363.4 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 QCISD/6-31G**
ABC
1.51571 0.14111 0.13226

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.301 1.306 0.000
C2 0.000 0.565 0.000
N3 -0.004 -0.717 0.000
O4 1.324 -1.206 0.000
H5 1.188 -2.160 0.000
H6 -2.130 0.600 0.000
H7 -1.379 1.946 0.881
H8 -1.379 1.946 -0.881
H9 0.940 1.113 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.49722.40293.63334.26681.08831.09151.09152.2497
C21.49721.28212.21132.97252.13032.14102.14101.0882
N32.40291.28211.41561.87162.50113.12363.12362.0592
O43.63332.21131.41560.96363.89824.24464.24462.3501
H54.26682.97251.87160.96364.31624.92154.92153.2818
H61.08832.13032.50113.89824.31621.77471.77473.1127
H71.09152.14103.12364.24464.92151.77471.76132.6169
H81.09152.14103.12364.24464.92151.77471.76132.6169
H92.24971.08822.05922.35013.28183.11272.61692.6169

picture of Acetaldoxime state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 119.466 C1 C2 H9 120.128
C2 C1 H6 109.960 C2 C1 H7 110.617
C2 C1 H8 110.617 C2 N3 O4 110.010
N3 C2 H9 120.407 N3 O4 H5 102.068
H6 C1 H7 109.006 H6 C1 H8 109.006
H7 C1 H8 107.576
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at QCISD/6-31G**
 hartrees
Energy at 0K-208.561531
Energy at 298.15K 
HF Energy-207.892797
Nuclear repulsion energy119.463588
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**
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' 3900 3671 64.43      
2 A' 3253 3063 9.11      
3 A' 3235 3046 9.04      
4 A' 3115 2932 14.76      
5 A' 1773 1669 6.37      
6 A' 1540 1450 9.21      
7 A' 1462 1376 10.06      
8 A' 1408 1326 26.88      
9 A' 1372 1292 54.25      
10 A' 1179 1110 9.95      
11 A' 961 904 85.97      
12 A' 932 878 18.34      
13 A' 678 638 13.61      
14 A' 322 303 1.50      
15 A" 3180 2993 17.17      
16 A" 1547 1456 7.74      
17 A" 1099 1035 0.79      
18 A" 880 829 9.41      
19 A" 489 461 37.77      
20 A" 377 354 96.87      
21 A" 76i 72i 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 16312.7 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 15356.7 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 QCISD/6-31G**
ABC
0.58889 0.21129 0.16011

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.450 0.481 0.000
C2 0.000 0.866 0.000
N3 1.027 0.095 0.000
O4 0.650 -1.270 0.000
H5 1.508 -1.707 0.000
H6 -1.570 -0.597 0.000
H7 -1.944 0.897 0.880
H8 -1.944 0.897 -0.880
H9 0.259 1.919 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.50022.50712.73403.67951.08511.09141.09142.2340
C21.50021.28462.23272.98282.14642.13382.13381.0847
N32.50711.28461.41601.86522.68793.20063.20061.9795
O42.73402.23271.41600.96332.31953.49233.49233.2131
H53.67952.98281.86520.96333.27214.41274.41273.8357
H61.08512.14642.68792.31953.27211.77421.77423.1114
H71.09142.13383.20063.49234.41271.77421.76002.5831
H81.09142.13383.20063.49234.41271.77421.76002.5831
H92.23401.08471.97953.21313.83573.11142.58312.5831

picture of Acetaldoxime state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 128.224 C1 C2 H9 118.710
C2 C1 H6 111.229 C2 C1 H7 109.834
C2 C1 H8 109.834 C2 N3 O4 111.443
N3 C2 H9 113.066 N3 O4 H5 101.546
H6 C1 H7 109.197 H6 C1 H8 109.197
H7 C1 H8 107.467
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability