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All results from a given calculation for HOCH2CH2NH2 (monoethanolamine)

using model chemistry: MP2=FULL/6-31G**

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

Conformer 2 (C1 OH out)

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

Conformer 3 (C1 OH in)

Jump to S1C1 S1C2
Energy calculated at MP2=FULL/6-31G**
 hartrees
Energy at 0K-209.783715
Energy at 298.15K-209.792980
HF Energy-209.117383
Nuclear repulsion energy135.075487
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=FULL/6-31G**
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 3793 3544 67.54      
2 A 3692 3450 2.93      
3 A 3587 3352 0.72      
4 A 3198 2988 37.55      
5 A 3186 2977 30.26      
6 A 3091 2889 63.73      
7 A 3061 2860 67.44      
8 A 1698 1586 32.09      
9 A 1577 1474 0.32      
10 A 1557 1455 3.30      
11 A 1486 1389 69.60      
12 A 1450 1355 22.75      
13 A 1416 1324 8.51      
14 A 1365 1275 2.31      
15 A 1294 1209 24.86      
16 A 1221 1141 9.06      
17 A 1148 1072 45.72      
18 A 1101 1028 40.07      
19 A 1040 972 12.69      
20 A 971 907 67.00      
21 A 916 856 14.61      
22 A 862 805 84.34      
23 A 593 554 142.95      
24 A 548 512 15.58      
25 A 340 318 0.43      
26 A 282 263 15.18      
27 A 202 189 6.35      

Unscaled Zero Point Vibrational Energy (zpe) 22336.4 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 20871.1 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 MP2=FULL/6-31G**
ABC
0.48134 0.19089 0.15594

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.344 -0.565 0.121
C2 -0.631 0.653 -0.276
C3 0.783 0.558 0.272
O4 1.398 -0.636 -0.171
H5 -1.632 -0.495 1.090
H6 -2.189 -0.680 -0.424
H7 -1.108 1.583 0.053
H8 -0.579 0.668 -1.363
H9 1.388 1.393 -0.078
H10 0.750 0.608 1.368
H11 0.688 -1.294 -0.104

Atom - Atom Distances (Å)
  N1 C2 C3 O4 H5 H6 H7 H8 H9 H10 H11
N11.46612.40972.75841.01361.01172.16232.07573.36712.70472.1709
C21.46611.51922.40652.04582.05561.09531.08892.15962.14732.3587
C32.40971.51921.41422.75843.29332.16162.13031.08901.09821.8920
O42.75842.40651.41423.28483.59603.35462.65152.03112.08240.9701
H51.01362.04582.75843.28481.62392.38132.91223.74822.63932.7289
H61.01172.05563.29333.59601.62392.55322.30044.14863.67502.9594
H72.16231.09532.16163.35462.38132.55321.76692.50642.47603.3955
H82.07571.08892.13032.65152.91222.30041.76692.45873.03782.6538
H93.36712.15961.08902.03113.74824.14862.50642.45871.76492.7767
H102.70472.14731.09822.08242.63933.67502.47603.03781.76492.4059
H112.17092.35871.89200.97012.72892.95943.39552.65382.77672.4059

picture of monoethanolamine state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 107.632 N1 C2 H7 114.397
N1 C2 H8 107.749 C2 N1 H5 109.835
C2 N1 H6 110.779 C2 C3 O4 110.200
C2 C3 H9 110.710 C2 C3 H10 109.197
C3 C2 H7 110.490 C3 C2 H8 108.408
C3 O4 H11 103.461 O4 C3 H9 107.759
O4 C3 H10 111.346 H5 N1 H6 106.601
H7 C2 H8 107.992 H9 C3 H10 107.595
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability