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

using model chemistry: MP2=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-323.022338
Energy at 298.15K-323.032293
HF Energy-321.936171
Nuclear repulsion energy247.730583
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 MP2=FULL/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 3653 3460 8.16      
2 A 3558 3370 0.82      
3 A 3365 3187 577.66      
4 A 3177 3009 6.17      
5 A 3149 2982 18.67      
6 A 3084 2920 7.29      
7 A 3073 2911 51.07      
8 A 1857 1759 312.04      
9 A 1729 1638 47.53      
10 A 1553 1471 18.78      
11 A 1521 1440 292.07      
12 A 1504 1424 4.85      
13 A 1450 1373 6.12      
14 A 1396 1322 6.92      
15 A 1350 1278 5.99      
16 A 1320 1250 10.73      
17 A 1273 1206 81.05      
18 A 1176 1114 10.51      
19 A 1115 1056 4.97      
20 A 1053 997 19.33      
21 A 1018 964 95.92      
22 A 980 928 34.63      
23 A 943 893 30.84      
24 A 896 848 44.95      
25 A 832 788 14.88      
26 A 708 671 8.56      
27 A 586 555 2.97      
28 A 497 470 8.20      
29 A 414 392 15.69      
30 A 344 326 6.35      
31 A 299 283 5.31      
32 A 211 200 4.19      
33 A 87 82 0.29      

Unscaled Zero Point Vibrational Energy (zpe) 24583.8 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 23283.4 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 MP2=FULL/6-311G*
ABC
0.24117 0.08372 0.06655

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.918 0.562 0.137
C2 1.343 -0.691 -0.381
C3 0.017 -0.981 0.318
C4 -1.084 0.038 0.030
O5 -0.677 1.315 -0.036
O6 -2.241 -0.278 -0.109
H7 2.669 0.890 -0.458
H8 2.302 0.414 1.063
H9 2.017 -1.548 -0.265
H10 1.168 -0.554 -1.452
H11 -0.369 -1.959 0.030
H12 0.176 -1.006 1.404
H13 0.301 1.342 0.082

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.47272.45493.04942.70704.24941.01261.01362.15002.08093.40562.66421.7967
C21.47271.52712.56742.86703.61742.06492.05631.09631.09302.16992.15572.3318
C32.45491.52711.52742.42382.40253.33702.77922.15932.15401.09081.09742.3524
C43.04942.56741.52741.34181.20663.87963.56053.49552.76002.12122.13711.9033
O52.70702.86702.42381.34182.23313.39873.30033.93712.98263.28882.86160.9847
O64.24943.61742.40251.20662.23315.05854.74234.44543.67362.51952.94303.0198
H71.01262.06493.33703.87963.39875.05851.63502.53082.30764.19353.64342.4712
H81.01362.05632.77923.56053.30034.74231.63502.38662.92353.71992.57952.4145
H92.15001.09632.15933.49553.93714.44542.53082.38661.76522.43912.54283.3796
H102.08091.09302.15402.76002.98263.67362.30762.92351.76522.55573.05622.5889
H113.40562.16991.09082.12123.28882.51954.19353.71992.43912.55571.75893.3694
H122.66422.15571.09742.13712.86162.94303.64342.57952.54283.05621.75892.6980
H131.79672.33182.35241.90330.98473.01982.47122.41453.37962.58893.36942.6980

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 109.827 N1 C2 H9 112.811
N1 C2 H10 107.468 C2 N1 H7 111.013
C2 N1 H8 110.221 C2 C3 C4 114.395
C2 C3 H11 110.866 C2 C3 H12 109.349
C3 C2 H9 109.698 C3 C2 H10 109.474
C3 C4 O5 115.138 C3 C4 O6 122.549
C4 C3 H11 107.046 C4 C3 H12 107.893
C4 O5 H13 108.818 O5 C4 O6 122.304
H7 N1 H8 107.601 H9 C2 H10 107.470
H11 C3 H12 106.990
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability