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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-209.461001
Energy at 298.15K-209.470131
HF Energy-209.009064
Nuclear repulsion energy132.457508
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
4/u)
Dep P Dep U
1 A 3632 3485 1.43      
2 A 3604 3458 26.18      
3 A 3521 3378 0.18      
4 A 3097 2972 40.14      
5 A 3074 2949 28.27      
6 A 2988 2867 69.84      
7 A 2973 2852 52.44      
8 A 1747 1676 33.73      
9 A 1569 1506 0.38      
10 A 1553 1490 2.53      
11 A 1453 1394 52.10      
12 A 1448 1389 18.79      
13 A 1404 1347 13.30      
14 A 1355 1300 4.37      
15 A 1272 1221 22.37      
16 A 1193 1145 16.34      
17 A 1114 1069 6.23      
18 A 1041 998 49.83      
19 A 1020 978 5.67      
20 A 917 880 39.25      
21 A 883 847 33.11      
22 A 784 752 202.54      
23 A 581 558 198.46      
24 A 532 510 19.17      
25 A 328 315 0.29      
26 A 267 256 11.06      
27 A 189 181 7.37      

Unscaled Zero Point Vibrational Energy (zpe) 21768.1 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 20886.5 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 CCD/6-31G
ABC
0.45986 0.18333 0.14934

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 -1.383 -0.554 0.133
C2 -0.642 0.667 -0.281
C3 0.793 0.583 0.274
O4 1.425 -0.656 -0.168
H5 -1.699 -0.534 1.101
H6 -2.142 -0.814 -0.492
H7 -1.123 1.614 0.037
H8 -0.591 0.668 -1.381
H9 1.415 1.406 -0.105
H10 0.775 0.639 1.380
H11 0.743 -1.359 -0.086

Atom - Atom Distances (Å)
  N1 C2 C3 O4 H5 H6 H7 H8 H9 H10 H11
N11.48702.45932.82681.01871.01662.18532.10093.42512.76302.2844
C21.48701.54102.45762.11392.11821.10841.10162.19362.18352.4621
C32.45931.54101.46002.85283.33942.18862.15941.09921.10751.9757
O42.82682.45761.46003.37433.58573.41922.70062.06332.12030.9827
H51.01872.11392.85283.37431.67732.46502.97243.86192.75112.8379
H61.01662.11823.33943.58571.67732.68522.32224.21123.75772.9642
H72.18531.10842.18863.41922.46502.68521.78582.55122.52163.5122
H82.10091.10162.15942.70062.97242.32221.78582.49043.08102.7507
H93.42512.19361.09922.06333.86194.21122.55122.49041.78992.8455
H102.76302.18351.10752.12032.75113.75772.52163.08101.78992.4779
H112.28442.46211.97570.98272.83792.96423.51222.75072.84552.4779

picture of monoethanolamine state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 108.610 N1 C2 H7 113.903
N1 C2 H8 107.569 C2 N1 H5 113.739
C2 N1 H6 114.260 C2 C3 O4 109.925
C2 C3 H9 111.271 C2 C3 H10 109.987
C3 C2 H7 110.329 C3 C2 H8 108.459
C3 O4 H11 106.313 O4 C3 H9 106.604
O4 C3 H10 110.592 H5 N1 H6 110.999
H7 C2 H8 107.808 H9 C3 H10 108.406
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability