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All results from a given calculation for HOCH2CH2NH2 (monoethanolamine)

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

Conformer 2 (C1 OH out)

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

Conformer 3 (C1 OH in)

Jump to S1C1 S1C2
Energy calculated at CID/6-31G*
 hartrees
Energy at 0K-209.651600
Energy at 298.15K-209.660899
HF Energy-209.098571
Nuclear repulsion energy135.055334
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 CID/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3865 3570 68.78      
2 A 3716 3433 2.78      
3 A 3625 3349 0.88      
4 A 3219 2973 49.21      
5 A 3209 2964 27.67      
6 A 3120 2882 71.75      
7 A 3098 2862 62.41      
8 A 1768 1633 38.96      
9 A 1614 1491 0.06      
10 A 1595 1473 3.67      
11 A 1536 1418 73.92      
12 A 1493 1379 25.29      
13 A 1456 1345 9.48      
14 A 1403 1296 2.60      
15 A 1328 1227 29.72      
16 A 1255 1159 7.80      
17 A 1191 1100 66.96      
18 A 1137 1050 27.24      
19 A 1069 988 21.67      
20 A 1005 928 80.98      
21 A 934 863 13.64      
22 A 891 823 81.50      
23 A 578 534 120.62      
24 A 548 506 62.73      
25 A 346 320 0.50      
26 A 283 262 15.07      
27 A 204 188 5.65      

Unscaled Zero Point Vibrational Energy (zpe) 22743.0 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 21007.7 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 CID/6-31G*
ABC
0.48775 0.18850 0.15507

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.358 -0.560 0.121
C2 -0.631 0.646 -0.277
C3 0.782 0.552 0.274
O4 1.408 -0.626 -0.171
H5 -1.652 -0.491 1.087
H6 -2.195 -0.678 -0.431
H7 -1.104 1.579 0.048
H8 -0.577 0.660 -1.365
H9 1.383 1.393 -0.067
H10 0.750 0.591 1.370
H11 0.733 -1.313 -0.102

Atom - Atom Distances (Å)
  N1 C2 C3 O4 H5 H6 H7 H8 H9 H10 H11
N11.46312.41602.78231.01171.01002.15502.07503.37102.70742.2336
C21.46311.51882.40512.04772.05491.09571.08922.15842.15022.3928
C32.41601.51881.40602.76963.29712.15942.13111.08891.09741.9026
O42.78232.40511.40603.31153.61323.34972.64912.02112.07060.9657
H51.01172.04772.76963.31151.62302.37942.91353.75422.65022.7889
H61.01002.05493.29713.61321.62302.55172.29774.15043.67863.0145
H72.15501.09572.15943.34972.37942.55171.76562.49742.48303.4292
H82.07501.08922.13112.64912.91352.29771.76562.46223.04062.6837
H93.37102.15841.08892.02113.75424.15042.49742.46221.76352.7827
H102.70742.15021.09742.07062.65023.67862.48303.04061.76352.4063
H112.23362.39281.90260.96572.78893.01453.42922.68372.78272.4063

picture of monoethanolamine state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 108.223 N1 C2 H7 113.977
N1 C2 H8 107.882 C2 N1 H5 110.341
C2 N1 H6 111.056 C2 C3 O4 110.574
C2 C3 H9 110.648 C2 C3 H10 109.488
C3 C2 H7 110.317 C3 C2 H8 108.474
C3 O4 H11 105.168 O4 C3 H9 107.535
O4 C3 H10 111.008 H5 N1 H6 106.792
H7 C2 H8 107.818 H9 C3 H10 107.531
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability