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All results from a given calculation for NH2CH2CH2COOH (β–alanine)

using model chemistry: MP3=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP3=FULL/6-31G*
 hartrees
Energy at 0K-322.815768
Energy at 298.15K-322.825692
HF Energy-321.861094
Nuclear repulsion energy247.245638
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 MP3=FULL/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 3631 3407 5.81      
2 A 3545 3326 0.26      
3 A 3462 3249 564.76      
4 A 3190 2993 5.52      
5 A 3153 2958 19.71      
6 A 3098 2907 5.82      
7 A 3086 2895 47.62      
8 A 1945 1825 350.29      
9 A 1728 1621 40.40      
10 A 1578 1480 8.33      
11 A 1541 1446 347.12      
12 A 1531 1436 5.14      
13 A 1467 1377 8.43      
14 A 1421 1334 5.77      
15 A 1365 1280 4.40      
16 A 1349 1266 24.63      
17 A 1299 1219 50.23      
18 A 1188 1115 5.69      
19 A 1128 1058 6.09      
20 A 1072 1006 22.32      
21 A 1015 952 37.61      
22 A 974 913 74.03      
23 A 930 872 48.33      
24 A 903 848 52.96      
25 A 843 791 16.39      
26 A 717 673 11.86      
27 A 593 556 4.78      
28 A 503 472 10.23      
29 A 410 384 16.64      
30 A 337 316 9.65      
31 A 288 270 5.78      
32 A 207 194 4.05      
33 A 88 83 0.52      

Unscaled Zero Point Vibrational Energy (zpe) 24791.0 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 23261.4 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 MP3=FULL/6-31G*
ABC
0.24011 0.08321 0.06616

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.887 0.569 0.137
C2 1.341 -0.698 -0.375
C3 0.008 -0.996 0.310
C4 -1.076 0.039 0.028
O5 -0.645 1.306 -0.039
O6 -2.237 -0.254 -0.105
H7 2.653 0.897 -0.444
H8 2.256 0.441 1.077
H9 2.017 -1.554 -0.246
H10 1.177 -0.574 -1.450
H11 -0.384 -1.969 0.008
H12 0.160 -1.030 1.398
H13 0.332 1.316 0.063

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.47172.45193.01252.64294.21231.01631.01742.16152.08173.40872.66991.7265
C21.47171.52812.55872.84073.61502.06672.05961.09891.09492.17672.15562.2942
C32.45191.52811.52532.41792.40023.33952.77602.15842.15491.09201.09882.3478
C43.01252.55871.52531.33981.20433.85613.51623.49042.76362.12472.13271.9015
O52.64292.84072.41791.33982.22973.34823.22573.91262.97433.28602.85780.9825
O64.21233.61502.40021.20432.22975.03524.69704.45053.68302.52772.93353.0155
H71.01632.06673.33953.85613.34825.03521.63712.54012.31484.20073.65002.4124
H81.01742.05962.77603.51623.22574.69701.63712.40602.92973.73112.58032.3437
H92.16151.09892.15843.49043.91264.45052.54012.40601.76532.44992.53503.3423
H102.08171.09492.15492.76362.97433.68302.31482.92971.76532.55103.05832.5643
H113.40872.17671.09202.12473.28602.52774.20073.73112.44992.55101.76383.3631
H122.66992.15561.09882.13272.85782.93353.65002.58032.53503.05831.76382.7047
H131.72652.29422.34781.90150.98253.01552.41242.34373.34232.56433.36312.7047

picture of β–alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 109.627 N1 C2 H9 113.671
N1 C2 H10 107.495 C2 N1 H7 111.004
C2 N1 H8 110.343 C2 C3 C4 113.858
C2 C3 H11 111.269 C2 C3 H12 109.198
C3 C2 H9 109.407 C3 C2 H10 109.370
C3 C4 O5 114.961 C3 C4 O6 122.693
C4 C3 H11 107.392 C4 C3 H12 107.618
C4 O5 H13 108.961 O5 C4 O6 122.336
H7 N1 H8 107.225 H9 C2 H10 107.162
H11 C3 H12 107.237
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability