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

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCSD(T)/6-311G*
 hartrees
Energy at 0K-208.624580
Energy at 298.15K 
HF Energy-207.926880
Nuclear repulsion energy119.335057
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 CCSD(T)/6-311G*
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' 3830 3687        
2 A' 3169 3051        
3 A' 3152 3034        
4 A' 3033 2919        
5 A' 1723 1658        
6 A' 1507 1451        
7 A' 1435 1381        
8 A' 1415 1363        
9 A' 1351 1301        
10 A' 1159 1116        
11 A' 943 908        
12 A' 917 883        
13 A' 674 649        
14 A' 318 307        
15 A" 3090 2975        
16 A" 1511 1455        
17 A" 1072 1032        
18 A" 850 818        
19 A" 487 468        
20 A" 386 372        
21 A" 82i 79i        

Unscaled Zero Point Vibrational Energy (zpe) 15970.2 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 15372.9 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 CCSD(T)/6-311G*
ABC
0.58910 0.21046 0.15970

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.454 0.480 0.000
C2 0.000 0.867 0.000
N3 1.028 0.092 0.000
O4 0.655 -1.267 0.000
H5 1.507 -1.711 0.000
H6 -1.574 -0.604 0.000
H7 -1.953 0.898 0.885
H8 -1.953 0.898 -0.885
H9 0.269 1.925 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.50482.51212.73853.68371.09121.09821.09822.2490
C21.50481.28752.23222.98642.15452.14422.14421.0918
N32.51211.28751.40861.86542.69283.21203.21201.9844
O42.73852.23221.40860.96092.32473.50273.50273.2153
H53.68372.98641.86540.96093.27314.42274.42273.8414
H61.09122.15452.69282.32473.27311.78441.78443.1297
H71.09822.14423.21203.50274.42271.78441.76942.6029
H81.09822.14423.21203.50274.42271.78441.76942.6029
H92.24901.09181.98443.21533.84143.12972.60292.6029

picture of Acetaldoxime state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 128.052 C1 C2 H9 119.168
C2 C1 H6 111.186 C2 C1 H7 109.938
C2 C1 H8 109.938 C2 N3 O4 111.693
N3 C2 H9 112.779 N3 O4 H5 102.197
H6 C1 H7 109.178 H6 C1 H8 109.178
H7 C1 H8 107.336
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability