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All results from a given calculation for HOCH2CH2NH2 (monoethanolamine)

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

Conformer 2 (C1 OH out)

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

Conformer 3 (C1 OH in)

Jump to S1C1 S1C2
Energy calculated at CISD/6-311G*
 hartrees
Energy at 0K-209.736013
Energy at 298.15K-209.745317
HF Energy-209.148309
Nuclear repulsion energy135.283845
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 CISD/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 3945 3650 48.94      
2 A 3742 3463 1.84      
3 A 3658 3385 0.32      
4 A 3200 2961 53.66      
5 A 3188 2950 33.43      
6 A 3102 2870 78.24      
7 A 3077 2847 70.22      
8 A 1789 1656 44.06      
9 A 1595 1476 0.50      
10 A 1576 1458 6.44      
11 A 1531 1417 79.12      
12 A 1487 1376 18.70      
13 A 1452 1343 6.35      
14 A 1401 1297 2.52      
15 A 1324 1225 29.90      
16 A 1253 1159 9.35      
17 A 1190 1102 74.66      
18 A 1134 1049 22.64      
19 A 1063 984 20.21      
20 A 998 924 84.51      
21 A 928 859 13.74      
22 A 885 819 76.92      
23 A 584 540 146.85      
24 A 545 504 39.62      
25 A 344 318 0.69      
26 A 277 257 14.88      
27 A 202 187 5.72      

Unscaled Zero Point Vibrational Energy (zpe) 22735.7 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 21037.3 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 CISD/6-311G*
ABC
0.48964 0.18872 0.15533

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.361 -0.556 0.124
C2 -0.629 0.646 -0.276
C3 0.785 0.550 0.272
O4 1.404 -0.627 -0.170
H5 -1.667 -0.481 1.079
H6 -2.178 -0.689 -0.445
H7 -1.101 1.578 0.047
H8 -0.574 0.657 -1.363
H9 1.387 1.388 -0.071
H10 0.755 0.588 1.368
H11 0.741 -1.309 -0.098

Atom - Atom Distances (Å)
  N1 C2 C3 O4 H5 H6 H7 H8 H9 H10 H11
N11.46242.41812.78091.00611.00432.15142.07353.37162.70812.2438
C21.46241.51892.39992.04542.05181.09451.08862.15802.14942.3936
C32.41811.51891.40072.77933.29022.15962.12841.08781.09681.8961
O42.78092.39991.40073.31803.59263.34382.64192.01662.06390.9543
H51.00612.04542.77933.31801.62102.37222.90763.76102.66322.8051
H61.00432.05183.29023.59261.62102.55822.28624.14293.67703.0042
H72.15141.09452.15963.34382.37222.55821.76562.49832.48373.4283
H82.07351.08862.12842.64192.90762.28621.76562.45953.03782.6822
H93.37162.15801.08782.01663.76104.14292.49832.45951.76352.7735
H102.70812.14941.09682.06392.66323.67702.48373.03781.76352.3976
H112.24382.39361.89610.95432.80513.00423.42832.68222.77352.3976

picture of monoethanolamine state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 108.392 N1 C2 H7 113.795
N1 C2 H8 107.844 C2 N1 H5 110.546
C2 N1 H6 111.203 C2 C3 O4 110.506
C2 C3 H9 110.680 C2 C3 H10 109.465
C3 C2 H7 110.397 C3 C2 H8 108.300
C3 O4 H11 105.682 O4 C3 H9 107.600
O4 C3 H10 110.880 H5 N1 H6 107.469
H7 C2 H8 107.953 H9 C3 H10 107.659
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability