return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-322.631698
Energy at 298.15K-322.641706
Nuclear repulsion energy248.290230
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 CID/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 3739 3454 8.78      
2 A 3651 3372 2.07      
3 A 3619 3343 547.58      
4 A 3266 3016 6.72      
5 A 3227 2981 23.51      
6 A 3172 2930 6.95      
7 A 3161 2919 51.70      
8 A 1991 1839 401.97      
9 A 1773 1638 43.89      
10 A 1620 1496 4.25      
11 A 1570 1450 36.59      
12 A 1563 1444 372.07      
13 A 1514 1399 6.66      
14 A 1467 1355 1.25      
15 A 1403 1296 4.60      
16 A 1388 1282 15.85      
17 A 1336 1234 49.86      
18 A 1222 1129 6.24      
19 A 1160 1071 9.80      
20 A 1097 1013 22.50      
21 A 1040 960 27.04      
22 A 991 915 75.81      
23 A 940 869 48.69      
24 A 918 848 71.26      
25 A 865 799 23.22      
26 A 740 683 14.91      
27 A 608 562 6.01      
28 A 515 476 10.66      
29 A 416 384 17.67      
30 A 342 316 10.52      
31 A 288 266 4.79      
32 A 210 194 4.14      
33 A 88 81 0.78      

Unscaled Zero Point Vibrational Energy (zpe) 25447.7 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 23506.1 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 CID/6-31G*
ABC
0.24283 0.08356 0.06651

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.928 0.563 0.134
C2 1.350 -0.682 -0.377
C3 0.022 -0.970 0.316
C4 -1.083 0.034 0.028
O5 -0.711 1.312 -0.039
O6 -2.225 -0.297 -0.106
H7 2.694 0.873 -0.444
H8 2.296 0.427 1.065
H9 2.014 -1.540 -0.255
H10 1.185 -0.556 -1.445
H11 -0.358 -1.945 0.029
H12 0.174 -0.993 1.397
H13 0.257 1.381 0.072

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.46522.45203.05832.74864.24821.00911.01022.14002.07363.39462.66321.8616
C21.46521.52482.56772.88743.60612.05712.05101.09141.08822.16182.15142.3777
C32.45201.52481.52022.42242.38393.33352.77162.14872.15061.08531.09212.3748
C43.05832.56771.52021.33211.19753.89763.55603.48492.76772.10742.12331.8999
O52.74862.88742.42241.33212.21033.45733.32373.94993.00983.27612.85640.9767
O64.24823.60612.38391.19752.21035.06834.72664.42023.67302.49422.91573.0015
H71.00912.05713.33353.89763.45735.06831.62332.51392.30724.18063.63672.5428
H81.01022.05102.77163.55603.32374.72661.62332.38512.91613.70702.57512.4610
H92.14001.09142.14873.48493.94994.42022.51392.38511.75292.42262.53263.4241
H102.07361.08822.15062.76773.00983.67302.30722.91611.75292.54563.04872.6297
H113.39462.16181.08532.10743.27612.49424.18063.70702.42262.54561.74983.3823
H122.66322.15141.09212.12332.85642.91573.63672.57512.53263.04871.74982.7203
H131.86162.37772.37481.89990.97673.00152.54282.46103.42412.62973.38232.7203

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 110.170 N1 C2 H9 112.847
N1 C2 H10 107.691 C2 N1 H7 111.142
C2 N1 H8 110.556 C2 C3 C4 114.973
C2 C3 H11 110.710 C2 C3 H12 109.480
C3 C2 H9 109.315 C3 C2 H10 109.649
C3 C4 O5 116.113 C3 C4 O6 122.159
C4 C3 H11 106.770 C4 C3 H12 107.610
C4 O5 H13 109.796 O5 C4 O6 121.713
H7 N1 H8 107.012 H9 C2 H10 107.077
H11 C3 H12 106.947
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability