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

using model chemistry: B3PW91/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 B3PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-323.680483
Energy at 298.15K-323.690343
Nuclear repulsion energy247.430355
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 B3PW91/aug-cc-pVDZ
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 3601 3474 9.23      
2 A 3511 3387 1.48      
3 A 3188 3075 810.85      
4 A 3139 3028 6.44      
5 A 3098 2988 18.62      
6 A 3044 2936 6.03      
7 A 3028 2920 64.16      
8 A 1831 1766 443.10      
9 A 1633 1575 28.56      
10 A 1499 1446 184.04      
11 A 1488 1436 48.56      
12 A 1435 1384 8.60      
13 A 1400 1351 10.72      
14 A 1355 1307 15.87      
15 A 1301 1255 6.55      
16 A 1283 1238 23.37      
17 A 1245 1201 61.02      
18 A 1139 1099 7.82      
19 A 1088 1049 6.32      
20 A 1019 983 24.65      
21 A 1006 970 68.74      
22 A 960 926 3.22      
23 A 912 880 27.22      
24 A 866 835 40.48      
25 A 814 785 21.55      
26 A 692 668 9.07      
27 A 575 554 2.28      
28 A 489 472 9.26      
29 A 408 394 11.40      
30 A 333 321 6.56      
31 A 284 274 10.98      
32 A 201 193 5.27      
33 A 89 86 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 23975.9 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 23127.2 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 B3PW91/aug-cc-pVDZ
ABC
0.24020 0.08388 0.06628

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.901 0.579 0.140
C2 1.365 -0.699 -0.358
C3 0.011 -0.996 0.287
C4 -1.081 0.037 0.024
O5 -0.674 1.312 -0.051
O6 -2.246 -0.267 -0.088
H7 2.678 0.903 -0.429
H8 2.248 0.482 1.092
H9 2.048 -1.546 -0.183
H10 1.241 -0.602 -1.445
H11 -0.372 -1.964 -0.058
H12 0.127 -1.075 1.381
H13 0.318 1.330 0.050

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.47242.46543.03352.68404.23861.01571.01742.15522.08463.41672.72461.7546
C21.47241.52942.58322.88033.64722.07152.06761.10221.09902.16992.16732.3189
C32.46541.52941.52642.43162.40113.35132.80052.16172.16061.09611.10292.3581
C43.03352.58321.52641.34071.20883.88383.52513.51302.82112.12472.13021.9047
O52.68402.88032.43161.34072.22853.39763.24563.94933.04553.29012.89640.9967
O64.23863.64722.40111.20882.22855.07214.70674.48153.75682.52862.90513.0230
H71.01572.07153.35133.88383.39765.07211.63482.54072.31554.20163.70032.4457
H81.01742.06762.80053.52513.24564.70671.63482.40432.93723.76472.64782.3519
H92.15521.10222.16173.51303.94934.48152.54072.40431.77092.45852.52133.3644
H102.08461.09902.16062.82113.04553.75682.31552.93721.77092.52563.07412.6113
H113.41672.16991.09612.12473.29012.52864.20163.76472.45852.52561.76333.3666
H122.72462.16731.10292.13022.89642.90513.70032.64782.52133.07411.76332.7549
H131.75462.31892.35811.90470.99673.02302.44572.35193.36442.61133.36662.7549

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 110.415 N1 C2 H9 112.878
N1 C2 H10 107.435 C2 N1 H7 111.403
C2 N1 H8 110.962 C2 C3 C4 115.422
C2 C3 H11 110.389 C2 C3 H12 109.782
C3 C2 H9 109.381 C3 C2 H10 109.490
C3 C4 O5 115.861 C3 C4 O6 122.345
C4 C3 H11 107.085 C4 C3 H12 107.127
C4 O5 H13 108.250 O5 C4 O6 121.782
H7 N1 H8 107.049 H9 C2 H10 107.131
H11 C3 H12 106.622
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.439      
2 C 0.879      
3 C 0.436      
4 C 0.676      
5 O -0.494      
6 O -0.549      
7 H 0.003      
8 H 0.052      
9 H -0.210      
10 H -0.336      
11 H -0.175      
12 H -0.137      
13 H 0.295      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  6.574 -1.277 0.564 6.720
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.943 1.589 -0.334
y 1.589 -37.635 0.052
z -0.334 0.052 -33.794
Traceless
 xyz
x -4.228 1.589 -0.334
y 1.589 -0.766 0.052
z -0.334 0.052 4.995
Polar
3z2-r29.990
x2-y2-2.308
xy1.589
xz-0.334
yz0.052


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.811 0.323 0.110
y 0.323 8.134 -0.018
z 0.110 -0.018 6.541


<r2> (average value of r2) Å2
<r2> 171.955
(<r2>)1/2 13.113