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All results from a given calculation for CH3CHNOH (Acetaldoxime)

using model chemistry: QCISD(T)/aug-cc-pVDZ

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 QCISD(T)/aug-cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/aug-cc-pVDZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVDZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at QCISD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-208.645422
Energy at 298.15K 
HF Energy-207.915720
Nuclear repulsion energy118.409182
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(T)/aug-cc-pVDZ
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' 3803 3718        
2 A' 3170 3100        
3 A' 3156 3086        
4 A' 3028 2961        
5 A' 1697 1659        
6 A' 1460 1427        
7 A' 1385 1354        
8 A' 1363 1333        
9 A' 1319 1290        
10 A' 1132 1107        
11 A' 914 893        
12 A' 870 850        
13 A' 652 638        
14 A' 311 304        
15 A" 3092 3023        
16 A" 1464 1432        
17 A" 1041 1018        
18 A" 840 821        
19 A" 473 463        
20 A" 377 369        
21 A" 93i 91i        

Unscaled Zero Point Vibrational Energy (zpe) 15727.0 cm-1
Scaled (by 0.9778) Zero Point Vibrational Energy (zpe) 15377.9 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(T)/aug-cc-pVDZ
ABC
0.57570 0.20850 0.15765

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.460 0.483 0.000
C2 0.000 0.874 0.000
N3 1.038 0.097 0.000
O4 0.651 -1.281 0.000
H5 1.513 -1.721 0.000
H6 -1.584 -0.610 0.000
H7 -1.957 0.908 0.891
H8 -1.957 0.908 -0.891
H9 0.271 1.938 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.51122.52732.75033.70011.09941.10581.10582.2615
C21.51121.29622.25053.00342.17022.15102.15101.0984
N32.52731.29621.43141.87922.71583.22853.22851.9940
O42.75032.25051.43140.96772.33363.51943.51943.2411
H53.70013.00341.87920.96773.29014.44354.44353.8639
H61.09942.17022.71582.33363.29011.79891.79893.1517
H71.10582.15103.22853.51944.44351.79891.78272.6120
H81.10582.15103.22853.51944.44351.79891.78272.6120
H92.26151.09841.99403.24113.86393.15172.61202.6120

picture of Acetaldoxime state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 128.213 C1 C2 H9 119.292
C2 C1 H6 111.495 C2 C1 H7 109.584
C2 C1 H8 109.584 C2 N3 O4 111.097
N3 C2 H9 112.495 N3 O4 H5 101.371
H6 C1 H7 109.328 H6 C1 H8 109.328
H7 C1 H8 107.431
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability