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

using model chemistry: HF/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 HF/6-311G*
 hartrees
Energy at 0K-321.940400
Energy at 298.15K-321.950469
Nuclear repulsion energy248.784379
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/6-311G*
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 3932 3556 373.29      
2 A 3828 3462 4.64      
3 A 3753 3395 3.01      
4 A 3281 2967 17.76      
5 A 3237 2928 44.27      
6 A 3185 2881 23.17      
7 A 3177 2873 62.36      
8 A 2034 1839 492.61      
9 A 1848 1671 49.38      
10 A 1653 1495 3.78      
11 A 1602 1449 29.61      
12 A 1579 1428 431.47      
13 A 1559 1410 9.62      
14 A 1503 1360 5.56      
15 A 1445 1307 4.57      
16 A 1418 1282 2.87      
17 A 1355 1225 64.32      
18 A 1255 1135 8.68      
19 A 1165 1054 14.98      
20 A 1119 1012 20.44      
21 A 1058 957 25.88      
22 A 997 902 65.54      
23 A 951 860 50.05      
24 A 900 814 45.06      
25 A 867 784 79.04      
26 A 768 694 22.86      
27 A 624 565 8.19      
28 A 524 474 10.17      
29 A 418 378 19.17      
30 A 345 312 9.62      
31 A 281 254 2.39      
32 A 207 188 4.21      
33 A 84 76 1.32      

Unscaled Zero Point Vibrational Energy (zpe) 25975.3 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 23492.1 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 HF/6-311G*
ABC
0.24433 0.08310 0.06632

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.945 0.565 0.126
C2 1.356 -0.677 -0.373
C3 0.025 -0.962 0.323
C4 -1.092 0.031 0.028
O5 -0.739 1.304 -0.032
O6 -2.212 -0.309 -0.115
H7 2.692 0.875 -0.459
H8 2.320 0.441 1.044
H9 2.014 -1.532 -0.243
H10 1.195 -0.562 -1.439
H11 -0.347 -1.939 0.049
H12 0.174 -0.971 1.401
H13 0.199 1.415 0.078

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.46312.46143.08512.78834.25470.99800.99932.13092.06973.39552.66871.9424
C21.46311.52902.57952.90343.59592.04972.04691.08681.08412.16082.15212.4328
C32.46141.52901.52292.41722.37073.33142.78512.14572.15271.08071.08852.3955
C43.08512.57951.52291.32231.17923.90693.58353.48782.78072.10652.11961.8930
O52.78832.90342.41721.32232.18593.48343.35553.95833.03323.26782.83970.9508
O64.25473.59592.37071.17922.18595.05594.73754.40133.66342.48262.90362.9699
H70.99802.04973.33143.90693.48345.05591.60842.51012.29454.17233.63422.6062
H80.99932.04692.78513.58353.35554.73751.60842.37592.90503.71032.59362.5259
H92.13091.08682.14573.48783.95834.40132.51012.37591.74442.41332.53073.4760
H102.06971.08412.15272.78073.03323.66342.29452.90501.74442.54703.04572.6833
H113.39552.16081.08072.10653.26782.48264.17233.71032.41332.54701.74243.3981
H122.66872.15211.08852.11962.83972.90363.63422.59362.53073.04571.74242.7284
H131.94242.43282.39551.89300.95082.96992.60622.52593.47602.68333.39812.7284

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 110.680 N1 C2 H9 112.536
N1 C2 H10 107.765 C2 N1 H7 111.373
C2 N1 H8 111.052 C2 C3 C4 115.389
C2 C3 H11 110.606 C2 C3 H12 109.457
C3 C2 H9 109.057 C3 C2 H10 109.765
C3 C4 O5 116.148 C3 C4 O6 122.129
C4 C3 H11 106.777 C4 C3 H12 107.348
C4 O5 H13 111.727 O5 C4 O6 121.709
H7 N1 H8 107.278 H9 C2 H10 106.941
H11 C3 H12 106.879
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.886      
2 C -0.254      
3 C -0.557      
4 C 0.630      
5 O -0.624      
6 O -0.438      
7 H 0.362      
8 H 0.351      
9 H 0.218      
10 H 0.234      
11 H 0.258      
12 H 0.233      
13 H 0.473      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  6.618 -1.314 0.643 6.777
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.290 1.319 -0.665
y 1.319 -37.663 -0.030
z -0.665 -0.030 -33.559
Traceless
 xyz
x -4.679 1.319 -0.665
y 1.319 -0.739 -0.030
z -0.665 -0.030 5.418
Polar
3z2-r210.835
x2-y2-2.626
xy1.319
xz-0.665
yz-0.030


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.340 0.478 0.119
y 0.478 6.062 0.005
z 0.119 0.005 5.167


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