return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3CHNOH (Acetaldoxime)

using model chemistry: B2PLYP=FULLultrafine/6-311G**

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=FULLultrafine/6-311G**
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULLultrafine/6-311G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-311G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at B2PLYP=FULLultrafine/6-311G**
 hartrees
Energy at 0K-209.013269
Energy at 298.15K 
HF Energy-208.769216
Nuclear repulsion energy119.820241
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=FULLultrafine/6-311G**
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' 3879 3879 98.30      
2 A' 3191 3191 8.52      
3 A' 3174 3174 5.17      
4 A' 3060 3060 13.79      
5 A' 1726 1726 6.83      
6 A' 1495 1495 17.72      
7 A' 1419 1419 17.07      
8 A' 1386 1386 29.61      
9 A' 1349 1349 44.52      
10 A' 1155 1155 9.54      
11 A' 940 940 121.46      
12 A' 919 919 14.20      
13 A' 679 679 13.04      
14 A' 317 317 1.43      
15 A" 3113 3113 15.10      
16 A" 1504 1504 10.30      
17 A" 1074 1074 0.78      
18 A" 869 869 13.38      
19 A" 503 503 39.13      
20 A" 389 389 91.03      
21 A" 18i 18i 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 16061.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16061.9 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 B2PLYP=FULLultrafine/6-311G**
ABC
0.59634 0.21146 0.16076

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.448 0.483 0.000
C2 0.000 0.864 0.000
N3 1.017 0.090 0.000
O4 0.655 -1.267 0.000
H5 1.513 -1.696 0.000
H6 -1.569 -0.597 0.000
H7 -1.944 0.901 0.880
H8 -1.944 0.901 -0.880
H9 0.270 1.916 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.49692.49612.73553.67631.08651.09331.09332.2367
C21.49691.27802.22932.97382.14362.13412.13411.0862
N32.49611.27801.40531.85412.67613.19373.19371.9727
O42.73552.22931.40530.95972.32263.49673.49673.2064
H53.67632.97381.85410.95973.27244.41244.41243.8202
H61.08652.14362.67612.32263.27241.77691.77693.1137
H71.09332.13413.19373.49674.41241.77691.76012.5895
H81.09332.13413.19373.49674.41241.77691.76012.5895
H92.23671.08621.97273.20643.82023.11372.58952.5895

picture of Acetaldoxime state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 128.022 C1 C2 H9 119.121
C2 C1 H6 111.150 C2 C1 H7 109.980
C2 C1 H8 109.980 C2 N3 O4 112.282
N3 C2 H9 112.857 N3 O4 H5 101.594
H6 C1 H7 109.211 H6 C1 H8 109.211
H7 C1 H8 107.218
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability