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All results from a given calculation for CH3CHNOH (Acetaldoxime)

using model chemistry: MP4=FULL/3-21G

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 MP4=FULL/3-21G
Rotational Constants (cm-1) from geometry optimized at MP4=FULL/3-21G
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/3-21G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP4=FULL/3-21G
 hartrees
Energy at 0K-207.189361
Energy at 298.15K 
HF Energy-206.718165
Nuclear repulsion energy116.631099
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 MP4=FULL/3-21G
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' 3457 3383        
2 A' 3167 3100        
3 A' 3129 3063        
4 A' 3038 2973        
5 A' 1608 1574        
6 A' 1550 1517        
7 A' 1460 1429        
8 A' 1377 1348        
9 A' 1305 1278        
10 A' 1148 1124        
11 A' 901 882        
12 A' 834 816        
13 A' 641 627        
14 A' 318 311        
15 A" 3088 3023        
16 A" 1580 1546        
17 A" 1117 1093        
18 A" 866 848        
19 A" 458 448        
20 A" 319 312        
21 A" 42i 41i        

Unscaled Zero Point Vibrational Energy (zpe) 15658.8 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 15326.8 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 MP4=FULL/3-21G
ABC
0.53722 0.20794 0.15430

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.459 0.475 0.000
C2 0.000 0.901 0.000
N3 1.057 0.136 0.000
O4 0.630 -1.319 0.000
H5 1.529 -1.750 0.000
H6 -1.515 -0.616 0.000
H7 -1.968 0.872 0.891
H8 -1.968 0.872 -0.891
H9 0.229 1.968 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.51932.53842.75393.72581.09321.10001.10002.2533
C21.51931.30502.30773.06082.14422.16032.16031.0918
N32.53841.30501.51591.94432.67983.23823.23822.0111
O42.75392.30771.51590.99702.25773.51363.51363.3118
H53.72583.06081.94430.99703.24884.46114.46113.9396
H61.09322.14422.67982.25773.24881.79271.79273.1183
H71.10002.16033.23823.51364.46111.79271.78132.6120
H81.10002.16033.23823.51364.46111.79271.78132.6120
H92.25331.09182.01113.31183.93963.11832.61202.6120

picture of Acetaldoxime state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 127.831 C1 C2 H9 118.382
C2 C1 H6 109.231 C2 C1 H7 110.091
C2 C1 H8 110.091 C2 N3 O4 109.559
N3 C2 H9 113.786 N3 O4 H5 99.295
H6 C1 H7 109.644 H6 C1 H8 109.644
H7 C1 H8 108.123
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability