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All results from a given calculation for HOCH2CH2NH2 (monoethanolamine)

using model chemistry: QCISD/6-311G**

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 QCISD/6-311G**
Rotational Constants (cm-1) from geometry optimized at QCISD/6-311G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1 OH out)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at QCISD/6-311G**
Rotational Constants (cm-1) from geometry optimized at QCISD/6-311G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C1 OH in)

Jump to S1C1 S1C2
Energy calculated at QCISD/6-311G**
 hartrees
Energy at 0K-209.897648
Energy at 298.15K-209.906897
HF Energy-209.165916
Nuclear repulsion energy134.575166
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 QCISD/6-311G**
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 3839 3663 58.03      
2 A 3621 3455 1.04      
3 A 3534 3372 0.15      
4 A 3113 2970 48.48      
5 A 3104 2961 30.75      
6 A 3020 2882 70.20      
7 A 2991 2854 68.27      
8 A 1668 1591 29.39      
9 A 1542 1472 0.24      
10 A 1521 1452 5.99      
11 A 1494 1425 77.00      
12 A 1441 1375 13.13      
13 A 1413 1348 1.11      
14 A 1352 1290 2.34      
15 A 1282 1223 21.10      
16 A 1219 1163 6.43      
17 A 1146 1094 53.69      
18 A 1094 1044 21.38      
19 A 1030 983 15.27      
20 A 968 924 67.11      
21 A 904 863 13.52      
22 A 860 821 64.43      
23 A 589 562 131.45      
24 A 546 521 10.68      
25 A 334 319 0.58      
26 A 271 259 15.89      
27 A 198 189 6.40      

Unscaled Zero Point Vibrational Energy (zpe) 22048.5 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 21036.5 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 QCISD/6-311G**
ABC
0.48215 0.18779 0.15425

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.360 -0.565 0.122
C2 -0.632 0.651 -0.278
C3 0.788 0.554 0.275
O4 1.408 -0.634 -0.172
H5 -1.655 -0.483 1.090
H6 -2.203 -0.669 -0.431
H7 -1.108 1.588 0.052
H8 -0.575 0.661 -1.373
H9 1.393 1.399 -0.072
H10 0.751 0.594 1.378
H11 0.711 -1.294 -0.098

Atom - Atom Distances (Å)
  N1 C2 C3 O4 H5 H6 H7 H8 H9 H10 H11
N11.47242.42662.78441.01601.01392.16882.08613.38672.71632.2068
C21.47241.52692.41292.05112.05801.10171.09582.16802.15872.3706
C32.42661.52691.41222.77693.30802.17102.14091.09531.10441.8870
O42.78442.41291.41223.31703.62113.36372.65502.03492.08350.9632
H51.01602.05112.77693.31701.62752.38102.92283.76602.65262.7700
H61.01392.05803.30803.62111.62752.55502.30394.16383.68762.9997
H72.16881.10172.17103.36372.38102.55501.78102.51042.49073.4116
H82.08611.09582.14092.65502.92282.30391.78102.47153.05442.6647
H93.38672.16801.09532.03493.76604.16382.51042.47151.77762.7781
H102.71632.15871.10442.08352.65263.68762.49073.05441.77762.3972
H112.20682.37061.88700.96322.77002.99973.41162.66472.77812.3972

picture of monoethanolamine state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 107.992 N1 C2 H7 114.046
N1 C2 H8 107.733 C2 N1 H5 109.663
C2 N1 H6 110.371 C2 C3 O4 110.307
C2 C3 H9 110.465 C2 C3 H10 109.194
C3 C2 H7 110.312 C3 C2 H8 108.309
C3 O4 H11 103.581 O4 C3 H9 107.826
O4 C3 H10 111.183 H5 N1 H6 106.599
H7 C2 H8 108.283 H9 C3 H10 107.830
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability