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All results from a given calculation for HOCH2CH2NH2 (monoethanolamine)

using model chemistry: CCD/6-31+G**

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

Conformer 2 (C1 OH out)

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

Conformer 3 (C1 OH in)

Jump to S1C1 S1C2
Energy calculated at CCD/6-31+G**
 hartrees
Energy at 0K-209.820557
Energy at 298.15K-209.829735
HF Energy-209.126494
Nuclear repulsion energy134.272985
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/6-31+G**
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 3860 3638 58.89      
2 A 3689 3476 4.50      
3 A 3590 3383 0.28      
4 A 3178 2994 40.51      
5 A 3166 2983 26.94      
6 A 3078 2900 71.79      
7 A 3062 2885 52.71      
8 A 1708 1609 39.22      
9 A 1567 1476 0.82      
10 A 1552 1463 3.07      
11 A 1485 1399 47.87      
12 A 1449 1365 24.12      
13 A 1405 1324 9.05      
14 A 1362 1283 3.24      
15 A 1285 1210 23.38      
16 A 1213 1143 8.47      
17 A 1151 1084 46.53      
18 A 1098 1035 40.94      
19 A 1032 973 12.20      
20 A 962 906 72.99      
21 A 908 855 17.38      
22 A 856 806 88.73      
23 A 557 525 105.47      
24 A 531 500 63.42      
25 A 335 315 0.58      
26 A 264 248 11.52      
27 A 188 177 5.20      

Unscaled Zero Point Vibrational Energy (zpe) 22263.3 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 20978.7 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 CCD/6-31+G**
ABC
0.48511 0.18487 0.15262

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.373 -0.561 0.124
C2 -0.635 0.644 -0.282
C3 0.779 0.557 0.277
O4 1.428 -0.623 -0.170
H5 -1.684 -0.489 1.086
H6 -2.196 -0.701 -0.448
H7 -1.105 1.581 0.042
H8 -0.583 0.652 -1.371
H9 1.379 1.401 -0.063
H10 0.744 0.587 1.374
H11 0.770 -1.327 -0.097

Atom - Atom Distances (Å)
  N1 C2 C3 O4 H5 H6 H7 H8 H9 H10 H11
N11.46982.42932.81741.01401.01202.15992.08143.38452.71282.2869
C21.46981.52282.42432.06262.06681.09661.09102.16272.15552.4283
C32.42931.52281.41912.79543.30982.15652.13971.09001.09811.9209
O42.81742.42431.41913.35953.63563.36432.66702.02722.07760.9667
H51.01402.06262.79543.35951.63142.38912.92493.77812.67112.8513
H61.01202.06683.30983.63561.63142.57632.29904.16453.69043.0517
H72.15991.09662.15653.36432.38912.57631.77002.49232.48563.4630
H82.08141.09102.13972.66702.92492.29901.77002.47363.04952.7151
H93.38452.16271.09002.02723.77814.16452.49232.47361.76952.7954
H102.71282.15551.09812.07762.67113.69042.48563.04951.76952.4143
H112.28692.42831.92090.96672.85133.05173.46302.71512.79542.4143

picture of monoethanolamine state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 108.526 N1 C2 H7 113.826
N1 C2 H8 107.824 C2 N1 H5 110.951
C2 N1 H6 111.431 C2 C3 O4 110.936
C2 C3 H9 110.643 C2 C3 H10 109.591
C3 C2 H7 109.762 C3 C2 H8 108.768
C3 O4 H11 105.683 O4 C3 H9 107.059
O4 C3 H10 110.602 H5 N1 H6 107.266
H7 C2 H8 108.016 H9 C3 H10 107.942
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability