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All results from a given calculation for HOCH2CH2NH2 (monoethanolamine)

using model chemistry: MP3=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 MP3=FULL/6-31G*
Rotational Constants (cm-1) from geometry optimized at MP3=FULL/6-31G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1 OH out)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at MP3=FULL/6-31G*
Rotational Constants (cm-1) from geometry optimized at MP3=FULL/6-31G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C1 OH in)

Jump to S1C1 S1C2
Energy calculated at MP3=FULL/6-31G*
 hartrees
Energy at 0K-209.748542
Energy at 298.15K-209.757805
HF Energy-209.097430
Nuclear repulsion energy134.654630
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 MP3=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 3746 3515 61.48      
2 A 3632 3408 1.52      
3 A 3542 3323 0.36      
4 A 3160 2965 42.28      
5 A 3151 2957 25.76      
6 A 3063 2874 63.19      
7 A 3037 2849 61.44      
8 A 1733 1626 37.64      
9 A 1581 1484 0.09      
10 A 1563 1466 4.34      
11 A 1505 1412 85.40      
12 A 1459 1369 19.49      
13 A 1427 1339 4.71      
14 A 1373 1288 2.15      
15 A 1300 1220 26.05      
16 A 1230 1154 7.98      
17 A 1161 1090 52.69      
18 A 1110 1041 28.96      
19 A 1050 985 20.92      
20 A 989 928 79.17      
21 A 918 861 12.31      
22 A 875 821 74.20      
23 A 582 546 149.89      
24 A 547 513 24.21      
25 A 343 322 0.39      
26 A 280 263 15.82      
27 A 204 192 5.74      

Unscaled Zero Point Vibrational Energy (zpe) 22278.5 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 20904.0 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 MP3=FULL/6-31G*
ABC
0.48129 0.18884 0.15480

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.354 -0.565 0.122
C2 -0.631 0.651 -0.278
C3 0.784 0.556 0.274
O4 1.405 -0.633 -0.171
H5 -1.650 -0.488 1.093
H6 -2.199 -0.677 -0.431
H7 -1.109 1.588 0.049
H8 -0.576 0.664 -1.370
H9 1.393 1.397 -0.073
H10 0.753 0.599 1.376
H11 0.707 -1.309 -0.104

Atom - Atom Distances (Å)
  N1 C2 C3 O4 H5 H6 H7 H8 H9 H10 H11
N11.46992.41892.77541.01781.01602.16732.08353.38052.71372.2032
C21.46991.52232.41012.05252.06081.10061.09412.16652.15682.3803
C32.41891.52231.41352.77223.30432.16812.13701.09401.10291.9044
O42.77542.41011.41353.30943.61383.36192.65472.03232.08230.9737
H51.01782.05252.77223.30941.63032.38522.92323.76372.65222.7681
H61.01602.06083.30433.61381.63032.55862.30564.16293.68862.9924
H72.16731.10062.16813.36192.38522.55861.77472.51222.49133.4225
H82.08351.09412.13702.65472.92322.30561.77472.46933.05142.6734
H93.38052.16651.09402.03233.76374.16292.51222.46931.77292.7913
H102.71372.15681.10292.08232.65223.68862.49133.05141.77292.4144
H112.20322.38031.90440.97372.76812.99243.42252.67342.79132.4144

picture of monoethanolamine state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 107.872 N1 C2 H7 114.182
N1 C2 H8 107.806 C2 N1 H5 109.855
C2 N1 H6 110.663 C2 C3 O4 110.302
C2 C3 H9 110.743 C2 C3 H10 109.456
C3 C2 H7 110.474 C3 C2 H8 108.419
C3 O4 H11 104.315 O4 C3 H9 107.603
O4 C3 H10 111.086 H5 N1 H6 106.565
H7 C2 H8 107.925 H9 C3 H10 107.607
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability