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 HOCH2CH2NH2 (monoethanolamine)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 3 yes C1 OH in 1A

Conformer 1 (CS)

Jump to S1C2 S1C3
Vibrational Frequencies calculated at MP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2/6-31+G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1 OH out)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at MP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2/6-31+G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C1 OH in)

Jump to S1C1 S1C2
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-209.785797
Energy at 298.15K-209.794987
HF Energy-209.125967
Nuclear repulsion energy134.488850
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 3783 3558 72.20      
2 A 3693 3474 8.67      
3 A 3584 3371 0.80      
4 A 3195 3005 35.24      
5 A 3184 2995 22.82      
6 A 3086 2903 70.20      
7 A 3071 2888 54.16      
8 A 1690 1589 40.46      
9 A 1558 1465 1.18      
10 A 1543 1452 3.43      
11 A 1466 1379 44.61      
12 A 1434 1349 21.70      
13 A 1389 1306 9.30      
14 A 1352 1271 3.46      
15 A 1276 1200 22.90      
16 A 1203 1132 10.48      
17 A 1137 1069 35.57      
18 A 1086 1022 55.35      
19 A 1025 964 8.77      
20 A 949 893 72.56      
21 A 908 854 19.03      
22 A 846 796 98.73      
23 A 576 542 141.29      
24 A 540 508 20.41      
25 A 335 316 0.37      
26 A 266 250 11.28      
27 A 190 179 5.62      

Unscaled Zero Point Vibrational Energy (zpe) 22182.1 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 20864.5 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 MP2/6-31+G**
ABC
0.48083 0.18763 0.15391

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)
N1 -1.359 -0.561 0.124
C2 -0.634 0.651 -0.279
C3 0.779 0.561 0.274
O4 1.415 -0.632 -0.169
H5 -1.672 -0.496 1.088
H6 -2.178 -0.716 -0.451
H7 -1.105 1.584 0.051
H8 -0.585 0.661 -1.368
H9 1.385 1.396 -0.076
H10 0.748 0.598 1.370
H11 0.732 -1.319 -0.098

Atom - Atom Distances (Å)
  N1 C2 C3 O4 H5 H6 H7 H8 H9 H10 H11
N11.46862.41952.79061.01471.01292.16102.07863.37682.70852.2351
C21.46861.52012.41982.06432.06941.09621.09032.16212.15252.4036
C32.41951.52011.42242.79083.30192.15592.13701.08951.09781.9169
O42.79062.41981.42243.33563.60533.36302.66622.03022.08040.9717
H51.01472.06432.79083.33561.63472.39262.92453.77932.67082.8032
H61.01292.06943.30193.60531.63472.58702.29704.15953.68882.9925
H72.16101.09622.15593.36302.39262.58701.77092.50112.47953.4384
H82.07861.09032.13702.66622.92452.29701.77092.46823.04642.6957
H93.37682.16211.08952.03023.77934.15952.50112.46821.77072.7926
H102.70852.15251.09782.08042.67083.68882.47953.04641.77072.4148
H112.23512.40361.91690.97172.80322.99253.43842.69572.79262.4148

picture of monoethanolamine state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 108.092 N1 C2 H7 114.034
N1 C2 H8 107.721 C2 N1 H5 111.138
C2 N1 H6 111.695 C2 C3 O4 110.598
C2 C3 H9 110.810 C2 C3 H10 109.558
C3 C2 H7 109.915 C3 C2 H8 108.780
C3 O4 H11 104.822 O4 C3 H9 107.102
O4 C3 H10 110.616 H5 N1 H6 107.453
H7 C2 H8 108.172 H9 C3 H10 108.105
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability