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All results from a given calculation for HOCH2CH2NH2 (monoethanolamine)

using model chemistry: MP4/TZVP

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 MP4/TZVP
Rotational Constants (cm-1) from geometry optimized at MP4/TZVP
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/TZVP
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1 OH out)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at MP4/TZVP
Rotational Constants (cm-1) from geometry optimized at MP4/TZVP
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/TZVP
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C1 OH in)

Jump to S1C1 S1C2
Energy calculated at MP4/TZVP
 hartrees
Energy at 0K-209.938780
Energy at 298.15K-209.947945
HF Energy-209.183824
Nuclear repulsion energy134.289602
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 MP4/TZVP
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 3754 3615        
2 A 3604 3471        
3 A 3507 3377        
4 A 3118 3003        
5 A 3107 2992        
6 A 3018 2906        
7 A 2993 2882        
8 A 1655 1594        
9 A 1527 1471        
10 A 1510 1454        
11 A 1468 1414        
12 A 1429 1376        
13 A 1392 1340        
14 A 1338 1289        
15 A 1265 1218        
16 A 1202 1158        
17 A 1116 1075        
18 A 1069 1029        
19 A 1018 980        
20 A 953 918        
21 A 889 856        
22 A 846 815        
23 A 571 550        
24 A 533 513        
25 A 329 317        
26 A 262 253        
27 A 185 178        

Unscaled Zero Point Vibrational Energy (zpe) 21829.3 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 21019.5 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 MP4/TZVP
ABC
0.48238 0.18603 0.15326

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.367 -0.565 0.122
C2 -0.633 0.647 -0.283
C3 0.780 0.557 0.278
O4 1.423 -0.628 -0.171
H5 -1.651 -0.491 1.095
H6 -2.213 -0.672 -0.427
H7 -1.105 1.584 0.043
H8 -0.574 0.650 -1.375
H9 1.381 1.404 -0.061
H10 0.737 0.589 1.379
H11 0.732 -1.305 -0.107

Atom - Atom Distances (Å)
  N1 C2 C3 O4 H5 H6 H7 H8 H9 H10 H11
N11.47372.42772.80561.01641.01422.16702.08483.38562.70922.2371
C21.47371.52322.42182.05642.06321.09911.09342.16312.15492.3888
C32.42771.52321.42172.77033.31172.15982.13941.09251.10161.9028
O42.80562.42181.42173.32723.64493.36652.65952.03612.08660.9695
H51.01642.05642.77033.32721.63242.38962.92593.75752.63642.7903
H61.01422.06323.31173.64491.63242.55732.30944.16673.68183.0291
H72.16701.09912.15983.36652.38962.55731.77872.49492.48433.4277
H82.08481.09342.13942.65952.92592.30941.77872.47353.05082.6723
H93.38562.16311.09252.03613.75754.16672.49492.47351.77522.7868
H102.70922.15491.10162.08662.63643.68182.48433.05081.77522.4073
H112.23712.38881.90280.96952.79033.02913.42772.67232.78682.4073

picture of monoethanolamine state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 108.191 N1 C2 H7 113.967
N1 C2 H8 107.689 C2 N1 H5 109.989
C2 N1 H6 110.695 C2 C3 O4 110.597
C2 C3 H9 110.497 C2 C3 H10 109.311
C3 C2 H7 109.842 C3 C2 H8 108.577
C3 O4 H11 103.844 O4 C3 H9 107.436
O4 C3 H10 110.940 H5 N1 H6 107.005
H7 C2 H8 108.437 H9 C3 H10 108.016
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability