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: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-321.923117
Energy at 298.15K-321.933146
Nuclear repulsion energy248.112164
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 HF/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3904 3555 457.00      
2 A 3810 3469 9.78      
3 A 3725 3392 6.20      
4 A 3275 2982 13.41      
5 A 3227 2938 34.62      
6 A 3177 2893 12.03      
7 A 3168 2885 57.78      
8 A 1995 1817 509.19      
9 A 1776 1617 36.47      
10 A 1622 1477 4.07      
11 A 1570 1429 106.89      
12 A 1563 1423 282.58      
13 A 1535 1398 7.64      
14 A 1484 1352 4.75      
15 A 1419 1292 4.16      
16 A 1399 1274 6.87      
17 A 1346 1225 53.89      
18 A 1238 1127 6.91      
19 A 1166 1061 14.06      
20 A 1100 1002 16.99      
21 A 1043 950 15.27      
22 A 984 896 55.39      
23 A 937 854 58.70      
24 A 893 813 31.41      
25 A 855 779 61.65      
26 A 760 692 18.50      
27 A 619 564 7.20      
28 A 520 474 10.77      
29 A 413 376 15.83      
30 A 339 308 9.78      
31 A 268 244 3.25      
32 A 200 183 5.32      
33 A 83 76 1.84      

Unscaled Zero Point Vibrational Energy (zpe) 25705.7 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 23407.6 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 HF/aug-cc-pVDZ
ABC
0.24362 0.08257 0.06591

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.953 0.567 0.127
C2 1.361 -0.676 -0.371
C3 0.026 -0.962 0.318
C4 -1.091 0.030 0.028
O5 -0.746 1.308 -0.036
O6 -2.219 -0.311 -0.111
H7 2.716 0.865 -0.450
H8 2.313 0.449 1.056
H9 2.017 -1.538 -0.233
H10 1.202 -0.563 -1.444
H11 -0.345 -1.942 0.031
H12 0.168 -0.976 1.403
H13 0.198 1.410 0.068

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.46412.46813.09242.80394.26991.00191.00352.13632.07583.40382.68231.9481
C21.46411.53002.58192.91353.60742.05352.05171.09221.08972.16222.15892.4283
C32.46811.53001.52132.42442.37593.34192.78722.14472.15591.08621.09362.3921
C43.09242.58191.52131.32601.18653.92633.58033.49012.78792.10822.11741.8890
O52.80392.91352.42441.32602.19023.51473.36023.97163.04633.27612.84970.9552
O64.26993.60742.37591.18652.19025.08414.74104.41133.67972.48852.90292.9725
H71.00192.05353.34193.92633.51475.08411.61402.51212.30644.18103.64892.6278
H81.00352.05172.78723.58033.36024.74101.61402.38632.91683.71912.59842.5251
H92.13631.09222.14473.49013.97164.41132.51212.38631.75512.41042.53173.4771
H102.07581.08972.15592.78793.04633.67972.30642.91681.75512.54333.05622.6809
H113.40382.16221.08622.10823.27612.48854.18103.71912.41042.54331.75453.3964
H122.68232.15891.09362.11742.84972.90293.64892.59842.53173.05621.75452.7341
H131.94812.42832.39211.88900.95522.97252.62782.52513.47712.68093.39642.7341

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 111.014 N1 C2 H9 112.561
N1 C2 H10 107.843 C2 N1 H7 111.370
C2 N1 H8 111.117 C2 C3 C4 115.597
C2 C3 H11 110.321 C2 C3 H12 109.625
C3 C2 H9 108.599 C3 C2 H10 109.615
C3 C4 O5 116.580 C3 C4 O6 122.185
C4 C3 H11 106.714 C4 C3 H12 107.007
C4 O5 H13 110.758 O5 C4 O6 121.219
H7 N1 H8 107.183 H9 C2 H10 107.106
H11 C3 H12 107.202
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.564      
2 C 0.790      
3 C 0.195      
4 C 0.942      
5 O -0.666      
6 O -0.696      
7 H 0.012      
8 H 0.057      
9 H -0.109      
10 H -0.206      
11 H -0.060      
12 H 0.009      
13 H 0.297      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  6.519 -1.211 0.629 6.660
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.097 0.994 -0.640
y 0.994 -37.700 -0.074
z -0.640 -0.074 -33.836
Traceless
 xyz
x -5.329 0.994 -0.640
y 0.994 -0.234 -0.074
z -0.640 -0.074 5.563
Polar
3z2-r211.125
x2-y2-3.397
xy0.994
xz-0.640
yz-0.074


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.628 0.378 0.110
y 0.378 7.263 0.023
z 0.110 0.023 6.100


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000