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All results from a given calculation for CH3CHNOH (Acetaldoxime)

using model chemistry: MP2/6-31+G**

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 MP2/6-31+G**
 hartrees
Energy at 0K-208.543558
Energy at 298.15K 
HF Energy-207.900659
Nuclear repulsion energy116.777830
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 MP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2/6-31+G**
ABC
1.51039 0.14090 0.13203

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.295 1.311 0.000
C2 0.000 0.570 0.000
N3 -0.010 -0.717 0.000
O4 1.321 -1.214 0.000
H5 1.181 -2.171 0.000
H6 -2.127 0.610 0.000
H7 -1.367 1.951 0.880
H8 -1.367 1.951 -0.880
H9 0.947 1.106 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.49192.40043.63604.27241.08781.09061.09062.2512
C21.49191.28642.21992.98422.12702.13362.13361.0887
N32.40041.28641.42161.87982.49813.11993.11992.0590
O43.63602.21991.42160.96743.90114.24524.24522.3502
H54.27242.98421.87980.96744.32154.92544.92543.2855
H61.08782.12702.49813.90114.32151.77461.77463.1137
H71.09062.13363.11994.24524.92541.77461.76012.6163
H81.09062.13363.11994.24524.92541.77461.76012.6163
H92.25121.08872.05902.35023.28553.11372.61632.6163

picture of Acetaldoxime state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 119.348 C1 C2 H9 120.672
C2 C1 H6 110.093 C2 C1 H7 110.448
C2 C1 H8 110.448 C2 N3 O4 110.022
N3 C2 H9 119.979 N3 O4 H5 102.108
H6 C1 H7 109.101 H6 C1 H8 109.101
H7 C1 H8 107.594
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-208.543842
Energy at 298.15K-208.549895
HF Energy-207.899525
Nuclear repulsion energy119.993909
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 MP2/6-31+G**
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 3860 3631 98.33      
2 A 3272 3078 7.41      
3 A 3242 3049 11.27      
4 A 3209 3018 5.85      
5 A 3126 2940 10.23      
6 A 1706 1605 3.46      
7 A 1529 1438 7.60      
8 A 1515 1425 10.87      
9 A 1452 1365 10.62      
10 A 1376 1295 17.53      
11 A 1342 1263 63.72      
12 A 1147 1079 12.38      
13 A 1068 1004 1.01      
14 A 993 934 20.66      
15 A 919 864 73.32      
16 A 847 797 20.42      
17 A 684 643 17.33      
18 A 504 474 38.60      
19 A 383 360 105.44      
20 A 293 276 1.59      
21 A 102 96 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 16284.2 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 15316.9 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 MP2/6-31+G**
ABC
0.56717 0.22270 0.16475

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.436 -0.495 -0.007
C2 -0.530 0.691 -0.005
N3 0.759 0.699 -0.006
O4 1.283 -0.619 0.017
H5 2.218 -0.455 -0.069
H6 -0.921 -1.387 -0.335
H7 -1.849 -0.658 0.990
H8 -2.288 -0.306 -0.653
H9 -0.951 1.687 0.040

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.49252.49852.72203.65411.08171.09081.08592.2358
C21.49251.28932.23732.97792.14092.13262.12251.0823
N32.49851.28931.41821.86072.69863.10363.27311.9762
O42.72202.23731.41820.95242.36053.27983.64683.2114
H53.65412.97791.86070.95243.28454.20674.54553.8268
H61.08172.14092.69862.36053.28451.77471.77183.0978
H71.09082.13263.10363.27984.20671.77471.73642.6846
H81.08592.12253.27313.64684.54551.77181.73642.4981
H92.23581.08231.97623.21143.82683.09782.68462.4981

picture of Acetaldoxime state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 127.690 C1 C2 H9 119.686
C2 C1 H6 111.544 C2 C1 H7 110.317
C2 C1 H8 109.805 C2 N3 O4 111.358
N3 C2 H9 112.582 N3 O4 H5 101.612
H6 C1 H7 109.549 H6 C1 H8 109.645
H7 C1 H8 105.819
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability