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: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-62.947565
Energy at 298.15K-62.957437
Nuclear repulsion energy136.967178
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 B3LYP/CEP-121G
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 3579 3488 3.19      
2 A 3465 3377 0.36      
3 A 3098 3019 15.38      
4 A 3070 2992 31.50      
5 A 3001 2924 23.22      
6 A 2993 2917 40.24      
7 A 2835 2762 849.32      
8 A 1711 1668 345.88      
9 A 1692 1649 102.11      
10 A 1529 1490 8.26      
11 A 1491 1453 21.69      
12 A 1468 1431 191.76      
13 A 1411 1375 17.57      
14 A 1366 1331 8.23      
15 A 1309 1275 4.31      
16 A 1280 1247 15.97      
17 A 1212 1181 120.44      
18 A 1146 1117 19.65      
19 A 1115 1086 122.79      
20 A 1069 1042 13.39      
21 A 989 964 25.02      
22 A 942 918 9.09      
23 A 901 878 46.19      
24 A 846 825 94.25      
25 A 789 769 9.35      
26 A 662 645 10.14      
27 A 546 532 2.95      
28 A 481 469 9.23      
29 A 420 410 10.40      
30 A 348 339 2.66      
31 A 304 296 12.23      
32 A 200 195 7.74      
33 A 89 87 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 23678.5 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 23074.7 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 B3LYP/CEP-121G
ABC
0.22972 0.08269 0.06483

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.908 0.577 0.124
C2 1.365 -0.742 -0.357
C3 -0.009 -1.035 0.306
C4 -1.087 0.042 0.027
O5 -0.612 1.338 -0.029
O6 -2.296 -0.229 -0.113
H7 2.616 0.973 -0.493
H8 2.259 0.542 1.082
H9 2.057 -1.573 -0.158
H10 1.242 -0.662 -1.444
H11 -0.403 -1.996 -0.040
H12 0.115 -1.113 1.398
H13 0.409 1.336 0.061

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.50492.51133.04452.63664.28691.01911.02072.17322.10643.46202.77401.6816
C21.50491.55312.60252.88713.70422.12682.12541.10001.09682.19022.18632.3247
C32.51131.55311.54952.47112.46093.39992.86902.18482.18291.09441.10182.4206
C43.04452.60251.54951.38171.24613.85353.54393.53972.84292.15042.15831.9792
O52.63662.88712.47111.38172.30143.28063.17913.95093.07133.33992.92761.0248
O64.28693.70422.46091.24612.30145.07044.77114.55603.80422.59062.97913.1299
H71.01912.12683.39993.85353.28065.07041.67182.62772.33764.25783.76612.3036
H81.02072.12542.86903.54393.17914.77111.67182.46012.97723.84492.72672.2571
H92.17321.10002.18483.53973.95094.55602.62772.46011.77392.49902.53143.3506
H102.10641.09682.18292.84293.07133.80422.33762.97721.77392.54023.09032.6361
H113.46202.19021.09442.15043.33992.59064.25783.84492.49902.54021.76533.4310
H122.77402.18631.10182.15832.92762.97913.76612.72672.53143.09031.76532.8062
H131.68162.32472.42061.97921.02483.12992.30362.25713.35062.63613.43102.8062

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 110.408 N1 C2 H9 112.144
N1 C2 H10 107.075 C2 N1 H7 113.442
C2 N1 H8 113.208 C2 C3 C4 114.033
C2 C3 H11 110.440 C2 C3 H12 109.708
C3 C2 H9 109.696 C3 C2 H10 109.726
C3 C4 O5 114.808 C3 C4 O6 122.986
C4 C3 H11 107.602 C4 C3 H12 107.795
C4 O5 H13 109.767 O5 C4 O6 122.193
H7 N1 H8 110.094 H9 C2 H10 107.703
H11 C3 H12 106.986
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.660      
2 C -0.260      
3 C -0.362      
4 C 0.118      
5 O -0.342      
6 O -0.158      
7 H 0.307      
8 H 0.296      
9 H 0.163      
10 H 0.182      
11 H 0.184      
12 H 0.170      
13 H 0.363      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  7.550 -1.873 0.662 7.807
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.839 2.824 -0.633
y 2.824 -38.480 0.091
z -0.633 0.091 -33.838
Traceless
 xyz
x -4.680 2.824 -0.633
y 2.824 -1.142 0.091
z -0.633 0.091 5.822
Polar
3z2-r211.643
x2-y2-2.359
xy2.824
xz-0.633
yz0.091


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.741 0.517 0.162
y 0.517 7.031 -0.027
z 0.162 -0.027 5.639


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