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All results from a given calculation for HOCH2CH2NH2 (monoethanolamine)

using model chemistry: B2PLYP=FULL/3-21G*

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 B2PLYP=FULL/3-21G*
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULL/3-21G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1 OH out)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at B2PLYP=FULL/3-21G*
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULL/3-21G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C1 OH in)

Jump to S1C1 S1C2
Energy calculated at B2PLYP=FULL/3-21G*
 hartrees
Energy at 0K-208.923639
Energy at 298.15K-208.932944
HF Energy-208.784388
Nuclear repulsion energy133.893977
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 B2PLYP=FULL/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 3542 3542 1.30      
2 A 3440 3440 0.20      
3 A 3299 3299 70.57      
4 A 3144 3144 33.62      
5 A 3126 3126 37.49      
6 A 3048 3048 59.90      
7 A 2993 2993 79.76      
8 A 1733 1733 24.64      
9 A 1605 1605 0.52      
10 A 1570 1570 7.51      
11 A 1499 1499 121.98      
12 A 1439 1439 1.53      
13 A 1419 1419 3.81      
14 A 1357 1357 2.37      
15 A 1284 1284 22.73      
16 A 1206 1206 14.58      
17 A 1082 1082 3.49      
18 A 1038 1038 47.16      
19 A 1013 1013 2.30      
20 A 920 920 42.93      
21 A 871 871 13.37      
22 A 801 801 182.16      
23 A 732 732 112.03      
24 A 555 555 11.12      
25 A 342 342 2.08      
26 A 303 303 12.74      
27 A 203 203 10.27      

Unscaled Zero Point Vibrational Energy (zpe) 21780.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 21780.7 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 B2PLYP=FULL/3-21G*
ABC
0.44479 0.19829 0.15595

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.317 -0.560 0.127
C2 -0.628 0.709 -0.259
C3 0.823 0.583 0.253
O4 1.339 -0.706 -0.166
H5 -1.612 -0.554 1.106
H6 -2.110 -0.781 -0.476
H7 -1.110 1.621 0.117
H8 -0.607 0.742 -1.350
H9 1.451 1.366 -0.175
H10 0.823 0.700 1.348
H11 0.512 -1.277 -0.099

Atom - Atom Distances (Å)
  N1 C2 C3 O4 H5 H6 H7 H8 H9 H10 H11
N11.49502.42962.67631.02241.02002.19092.09313.38602.76811.9776
C21.49501.54382.42532.10372.11281.09721.09162.18192.16572.2957
C32.42961.54381.45072.81913.31562.19752.15381.09151.10141.9182
O42.67632.42531.45073.21673.46363.38982.69962.07562.12941.0067
H51.02242.10372.81913.21671.67382.44132.95283.83532.74982.5465
H61.02002.11283.31563.46361.67382.66872.31144.16893.75842.6950
H72.19091.09722.19753.38982.44132.66871.78202.58952.47013.3275
H82.09311.09162.15382.69962.95282.31141.78202.45013.05422.6257
H93.38602.18191.09152.07563.83534.16892.58952.45011.77772.8057
H102.76812.16571.10142.12942.74983.75842.47013.05421.77772.4692
H111.97762.29571.91821.00672.54652.69503.32752.62572.80572.4692

picture of monoethanolamine state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 106.159 N1 C2 H7 114.517
N1 C2 H8 106.998 C2 N1 H5 112.000
C2 N1 H6 112.935 C2 C3 O4 108.140
C2 C3 H9 110.607 C2 C3 H10 108.768
C3 C2 H7 111.508 C3 C2 H8 108.403
C3 O4 H11 101.082 O4 C3 H9 108.636
O4 C3 H10 112.381 H5 N1 H6 110.076
H7 C2 H8 109.002 H9 C3 H10 108.319
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability