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All results from a given calculation for HOCH2CH2NH2 (monoethanolamine)

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

Conformer 2 (C1 OH out)

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

Conformer 3 (C1 OH in)

Jump to S1C1 S1C2
Energy calculated at CCD/6-31G**
 hartrees
Energy at 0K-209.803773
Energy at 298.15K-209.813010
HF Energy-209.117744
Nuclear repulsion energy134.659413
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 CCD/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 3863 3622 53.80      
2 A 3681 3451 0.84      
3 A 3586 3362 0.21      
4 A 3177 2978 45.98      
5 A 3167 2969 30.72      
6 A 3079 2887 66.71      
7 A 3052 2862 65.17      
8 A 1712 1605 31.28      
9 A 1581 1482 0.18      
10 A 1562 1465 2.99      
11 A 1499 1406 69.79      
12 A 1460 1369 26.28      
13 A 1426 1337 8.07      
14 A 1371 1286 2.37      
15 A 1298 1217 24.50      
16 A 1226 1150 8.08      
17 A 1158 1085 52.71      
18 A 1106 1037 29.72      
19 A 1045 980 17.79      
20 A 980 919 67.11      
21 A 914 857 14.25      
22 A 868 813 76.51      
23 A 568 532 116.77      
24 A 537 503 48.30      
25 A 338 317 0.56      
26 A 277 259 14.49      
27 A 198 186 5.75      

Unscaled Zero Point Vibrational Energy (zpe) 22362.8 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 20967.3 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 CCD/6-31G**
ABC
0.48397 0.18756 0.15414

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.360 -0.566 0.121
C2 -0.634 0.647 -0.278
C3 0.782 0.555 0.275
O4 1.414 -0.628 -0.171
H5 -1.651 -0.489 1.089
H6 -2.205 -0.670 -0.426
H7 -1.108 1.581 0.047
H8 -0.579 0.661 -1.367
H9 1.383 1.399 -0.068
H10 0.747 0.598 1.373
H11 0.730 -1.308 -0.101

Atom - Atom Distances (Å)
  N1 C2 C3 O4 H5 H6 H7 H8 H9 H10 H11
N11.46922.42262.78951.01411.01212.16352.08073.37892.71332.2288
C21.46921.52312.41502.04832.05591.09681.09072.16222.15312.3907
C32.42261.52311.41402.77033.30422.16332.13571.09051.09931.9013
O42.78952.41501.41403.31693.62823.36042.65792.03032.08150.9661
H51.01412.04832.77033.31691.62302.38082.91643.75572.64852.7853
H61.01212.05593.30423.62821.62302.54862.30274.15713.68243.0216
H72.16351.09682.16333.36042.38082.54861.76822.50032.48403.4279
H82.08071.09072.13572.65792.91642.30271.76822.46623.04492.6821
H93.37892.16221.09052.03033.75574.15712.50032.46621.76632.7843
H102.71332.15311.09932.08152.64853.68242.48403.04491.76632.4091
H112.22882.39071.90130.96612.78533.02163.42792.68212.78432.4091

picture of monoethanolamine state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 108.104 N1 C2 H7 114.164
N1 C2 H8 107.826 C2 N1 H5 109.779
C2 N1 H6 110.544 C2 C3 O4 110.568
C2 C3 H9 110.550 C2 C3 H10 109.313
C3 C2 H7 110.262 C3 C2 H8 108.460
C3 O4 H11 104.461 O4 C3 H9 107.616
O4 C3 H10 111.212 H5 N1 H6 106.446
H7 C2 H8 107.867 H9 C3 H10 107.529
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability