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: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS trans 1A'
1 2 no CS cis 1A'

Conformer 1 (CS trans)

Jump to S1C2
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-209.081199
Energy at 298.15K-209.087127
Nuclear repulsion energy116.002585
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 BLYP/6-31G(2df,p)
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 3662 3642 53.94      
2 A 3058 3041 14.76      
3 A 3009 2992 18.42      
4 A 2951 2935 22.90      
5 A 1647 1638 0.58      
6 A 1445 1437 6.48      
7 A 1396 1388 12.63      
8 A 1363 1355 9.46      
9 A 1246 1239 50.43      
10 A 1116 1109 4.53      
11 A 960 955 108.33      
12 A 867 862 36.26      
13 A 543 540 14.26      
14 A 310 308 3.19      
15 A 2994 2977 17.92      
16 A 1442 1434 5.32      
17 A 1043 1037 0.29      
18 A 885 880 5.78      
19 A 410 408 109.33      
20 A 271 270 0.92      
21 A 209 208 0.23      

Unscaled Zero Point Vibrational Energy (zpe) 15412.6 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 15327.8 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 BLYP/6-31G(2df,p)
ABC
1.50509 0.13860 0.13001

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.299 1.324 0.000
C2 0.000 0.569 0.000
N3 -0.006 -0.718 0.000
O4 1.328 -1.231 0.000
H5 1.163 -2.191 0.000
H6 -2.150 0.628 0.000
H7 -1.374 1.979 0.886
H8 -1.374 1.979 -0.886
H9 0.948 1.126 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.50312.41713.66534.29201.09861.10381.10382.2565
C21.50311.28652.23702.99502.15062.15872.15871.1002
N32.41711.28651.42951.88082.53143.15063.15062.0765
O43.66532.23701.42950.97423.94394.28834.28832.3882
H54.29202.99501.88080.97424.35024.96074.96073.3248
H61.09862.15062.53143.94394.35021.79161.79163.1378
H71.10382.15873.15064.28834.96071.79161.77132.6274
H81.10382.15873.15064.28834.96071.79161.77132.6274
H92.25651.10022.07652.38823.32483.13782.62742.6274

picture of Acetaldoxime state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 119.902 C1 C2 H9 119.369
C2 C1 H6 110.538 C2 C1 H7 110.872
C2 C1 H8 110.872 C2 N3 O4 110.786
N3 C2 H9 120.729 N3 O4 H5 101.283
H6 C1 H7 108.868 H6 C1 H8 108.868
H7 C1 H8 106.713
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.397      
2 C 0.119      
3 N -0.105      
4 O -0.345      
5 H 0.287      
6 H 0.124      
7 H 0.119      
8 H 0.119      
9 H 0.079      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.311 0.476 0.000 0.568
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.850 -2.018 0.000
y -2.018 -18.788 0.000
z 0.000 0.000 -24.699
Traceless
 xyz
x -3.107 -2.018 0.000
y -2.018 5.987 0.000
z 0.000 0.000 -2.880
Polar
3z2-r2-5.760
x2-y2-6.063
xy-2.018
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.622 -1.570 0.000
y -1.570 7.190 0.000
z 0.000 0.000 3.405


<r2> (average value of r2) Å2
<r2> 93.179
(<r2>)1/2 9.653

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-209.080587
Energy at 298.15K 
HF Energy-209.080587
Nuclear repulsion energy118.396386
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 BLYP/6-31G(2df,p)
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' 3669 3649 54.27      
2 A' 3091 3074 8.89      
3 A' 3065 3048 8.26      
4 A' 2959 2943 14.57      
5 A' 1652 1643 5.34      
6 A' 1443 1435 11.59      
7 A' 1359 1352 10.68      
8 A' 1339 1331 28.48      
9 A' 1301 1294 39.10      
10 A' 1108 1102 10.55      
11 A' 890 885 45.95      
12 A' 857 852 88.09      
13 A' 653 650 12.75      
14 A' 297 295 1.08      
15 A" 3000 2984 14.57      
16 A" 1449 1441 5.94      
17 A" 1027 1021 0.15      
18 A" 829 825 11.24      
19 A" 493 490 33.09      
20 A" 369 367 65.59      
21 A" 27i 27i 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 15411.3 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 15326.5 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 BLYP/6-31G(2df,p)
ABC
0.58585 0.20555 0.15663

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.462 0.500 0.000
C2 0.000 0.868 0.000
N3 1.029 0.091 0.000
O4 0.661 -1.292 0.000
H5 1.539 -1.713 0.000
H6 -1.601 -0.586 0.000
H7 -1.964 0.928 0.885
H8 -1.964 0.928 -0.885
H9 0.271 1.929 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.50712.52372.77813.72861.09561.10341.10342.2460
C21.50711.28872.25833.00482.16262.15462.15461.0958
N32.52371.28871.43121.87542.71543.23063.23061.9881
O42.77812.25831.43120.97362.36933.54943.54943.2447
H53.72863.00481.87540.97363.33554.47494.47493.8571
H61.09562.16262.71542.36933.33551.79091.79093.1358
H71.10342.15463.23063.54944.47491.79091.76962.6039
H81.10342.15463.23063.54944.47491.79091.76962.6039
H92.24601.09581.98813.24473.85713.13582.60392.6039

picture of Acetaldoxime state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 128.857 C1 C2 H9 118.425
C2 C1 H6 111.399 C2 C1 H7 110.294
C2 C1 H8 110.294 C2 N3 O4 112.153
N3 C2 H9 112.717 N3 O4 H5 100.779
H6 C1 H7 109.052 H6 C1 H8 109.052
H7 C1 H8 106.618
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.411      
2 C 0.109      
3 N -0.112      
4 O -0.350      
5 H 0.289      
6 H 0.139      
7 H 0.121      
8 H 0.121      
9 H 0.094      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.638 0.118 0.000 0.649
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.721 -3.619 0.000
y -3.619 -21.088 0.000
z 0.000 0.000 -24.718
Traceless
 xyz
x 0.182 -3.619 0.000
y -3.619 2.631 0.000
z 0.000 0.000 -2.813
Polar
3z2-r2-5.626
x2-y2-1.633
xy-3.619
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.062 -1.284 0.000
y -1.284 6.249 0.000
z 0.000 0.000 3.396


<r2> (average value of r2) Å2
<r2> 80.420
(<r2>)1/2 8.968