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All results from a given calculation for CH3CHNOH (Acetaldoxime)

using model chemistry: CCD/3-21G*

19 10 17 12 22

States and conformations

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

Conformer 1 (CS trans)

Jump to S1C2
Energy calculated at CCD/3-21G*
 hartrees
Energy at 0K-207.164589
Energy at 298.15K-207.170455
HF Energy-206.720335
Nuclear repulsion energy114.415014
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 CCD/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 3507 3354 9.42      
2 A 3139 3003 13.64      
3 A 3123 2988 2.63      
4 A 3043 2911 12.07      
5 A 1673 1600 4.27      
6 A 1566 1498 5.68      
7 A 1478 1413 8.21      
8 A 1429 1367 16.36      
9 A 1295 1239 57.49      
10 A 1161 1110 7.41      
11 A 982 939 39.84      
12 A 896 857 5.32      
13 A 539 516 15.26      
14 A 312 299 1.42      
15 A 3099 2964 14.94      
16 A 1568 1500 9.40      
17 A 1132 1083 0.31      
18 A 927 887 23.42      
19 A 329 314 152.26      
20 A 273 262 13.54      
21 A 190 182 0.57      

Unscaled Zero Point Vibrational Energy (zpe) 15829.7 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 15141.1 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 CCD/3-21G*
ABC
1.45032 0.13530 0.12673

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.281 1.375 0.000
C2 0.000 0.560 0.000
N3 -0.058 -0.729 0.000
O4 1.344 -1.260 0.000
H5 1.171 -2.238 0.000
H6 -2.143 0.698 0.000
H7 -1.327 2.017 0.891
H8 -1.327 2.017 -0.891
H9 0.960 1.080 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.51792.43393.71964.36651.09681.09911.09912.2596
C21.51791.29072.26313.03362.14792.16262.16261.0913
N32.43391.29071.49911.94592.52723.15393.15392.0757
O43.71962.26311.49910.99313.99984.32104.32102.3719
H54.36653.03361.94590.99314.42775.01415.01413.3251
H61.09682.14792.52723.99984.42771.78921.78923.1265
H71.09912.16263.15394.32105.01411.78921.78162.6267
H81.09912.16263.15394.32105.01411.78921.78162.6267
H92.25961.09132.07572.37193.32513.12652.62672.6267

picture of Acetaldoxime state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 119.904 C1 C2 H9 119.087
C2 C1 H6 109.402 C2 C1 H7 110.428
C2 C1 H8 110.428 C2 N3 O4 108.192
N3 C2 H9 121.009 N3 O4 H5 100.698
H6 C1 H7 109.132 H6 C1 H8 109.132
H7 C1 H8 108.287
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CCD/3-21G*
 hartrees
Energy at 0K-207.165231
Energy at 298.15K-207.171038
HF Energy-206.720866
Nuclear repulsion energy117.237219
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 CCD/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' 3517 3364 10.42      
2 A' 3179 3041 3.98      
3 A' 3145 3008 14.20      
4 A' 3048 2916 11.39      
5 A' 1684 1611 2.10      
6 A' 1564 1496 10.35      
7 A' 1471 1407 17.58      
8 A' 1400 1339 2.59      
9 A' 1344 1286 61.88      
10 A' 1162 1112 21.70      
11 A' 921 881 34.73      
12 A' 873 835 14.39      
13 A' 656 627 13.19      
14 A' 322 308 3.10      
15 A" 3096 2961 14.80      
16 A" 1583 1514 11.78      
17 A" 1130 1081 0.37      
18 A" 886 847 10.87      
19 A" 465 444 14.87      
20 A" 324 310 141.58      
21 A" 15 14 1.42      

Unscaled Zero Point Vibrational Energy (zpe) 15891.9 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 15200.6 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 CCD/3-21G*
ABC
0.54669 0.20892 0.15561

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.458 0.470 0.000
C2 0.000 0.892 0.000
N3 1.047 0.134 0.000
O4 0.640 -1.307 0.000
H5 1.531 -1.743 0.000
H6 -1.525 -0.620 0.000
H7 -1.965 0.870 0.890
H8 -1.965 0.870 -0.890
H9 0.223 1.960 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.51792.52802.74953.71971.09221.09941.09942.2462
C21.51791.29312.29043.04832.14782.15722.15721.0906
N32.52801.29311.49751.93892.68083.22623.22622.0031
O42.74952.29041.49750.99252.27133.50943.50943.2932
H53.71973.04831.93890.99253.25624.45484.45483.9275
H61.09222.14782.68082.27133.25621.79041.79043.1164
H71.09942.15723.22623.50944.45481.79041.77992.6015
H81.09942.15723.22623.50944.45481.79041.77992.6015
H92.24621.09062.00313.29323.92753.11642.60152.6015

picture of Acetaldoxime state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 127.954 C1 C2 H9 117.956
C2 C1 H6 109.664 C2 C1 H7 109.983
C2 C1 H8 109.983 C2 N3 O4 110.108
N3 C2 H9 114.090 N3 O4 H5 100.307
H6 C1 H7 109.552 H6 C1 H8 109.552
H7 C1 H8 108.084
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability