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: HSEh1PBE/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 HSEh1PBE/aug-cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at HSEh1PBE/aug-cc-pVDZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVDZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at HSEh1PBE/aug-cc-pVDZ
 hartrees
Energy at 0K-208.945887
Energy at 298.15K 
HF Energy-208.945887
Nuclear repulsion energy120.087387
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 HSEh1PBE/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' 3872 3726 97.81      
2 A' 3196 3076 6.97      
3 A' 3177 3057 3.91      
4 A' 3057 2941 12.23      
5 A' 1768 1701 9.36      
6 A' 1450 1395 23.64      
7 A' 1389 1337 38.68      
8 A' 1373 1321 24.25      
9 A' 1335 1284 25.10      
10 A' 1144 1101 7.99      
11 A' 967 931 149.52      
12 A' 929 894 4.25      
13 A' 681 655 12.07      
14 A' 311 299 1.48      
15 A" 3121 3003 9.63      
16 A" 1452 1397 9.64      
17 A" 1047 1007 0.78      
18 A" 861 828 15.53      
19 A" 514 494 44.48      
20 A" 410 394 72.00      
21 A" 11i 11i 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 16020.2 cm-1
Scaled (by 0.9622) Zero Point Vibrational Energy (zpe) 15414.6 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 HSEh1PBE/aug-cc-pVDZ
ABC
0.60451 0.21152 0.16142

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.444 0.488 0.000
C2 0.000 0.858 0.000
N3 1.013 0.082 0.000
O4 0.656 -1.262 0.000
H5 1.509 -1.706 0.000
H6 -1.581 -0.597 0.000
H7 -1.940 0.915 0.883
H8 -1.940 0.915 -0.883
H9 0.277 1.916 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.49072.49062.73333.67891.09331.09981.09982.2363
C21.49071.27612.21902.97522.14882.13272.13271.0933
N32.49061.27611.39101.85592.68223.19343.19341.9755
O42.73332.21901.39100.96202.33413.50153.50153.2000
H53.67892.97521.85590.96203.28374.42174.42173.8255
H61.09332.14882.68222.33413.28371.78771.78773.1252
H71.09982.13273.19343.50154.42171.78771.76682.5880
H81.09982.13273.19343.50154.42171.78771.76682.5880
H92.23631.09331.97553.20003.82553.12522.58802.5880

picture of Acetaldoxime state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 128.190 C1 C2 H9 119.062
C2 C1 H6 111.600 C2 C1 H7 109.908
C2 C1 H8 109.908 C2 N3 O4 112.540
N3 C2 H9 112.748 N3 O4 H5 102.600
H6 C1 H7 109.208 H6 C1 H8 109.208
H7 C1 H8 106.887
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.382      
2 C 0.616      
3 N -0.138      
4 O -0.437      
5 H 0.132      
6 H -0.120      
7 H -0.061      
8 H -0.061      
9 H -0.313      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.840 0.215 0.000 0.867
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.410 -3.875 0.000
y -3.875 -21.380 0.000
z 0.000 0.000 -25.487
Traceless
 xyz
x 0.024 -3.875 0.000
y -3.875 3.068 0.000
z 0.000 0.000 -3.092
Polar
3z2-r2-6.184
x2-y2-2.030
xy-3.875
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.882 -1.126 0.000
y -1.126 6.838 0.000
z 0.000 0.000 4.492


<r2> (average value of r2) Å2
<r2> 78.960
(<r2>)1/2 8.886