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

using model chemistry: BLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/6-31+G**
 hartrees
Energy at 0K-323.672922
Energy at 298.15K-323.682587
Nuclear repulsion energy244.205202
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 BLYP/6-31+G**
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 3483 3464 6.45      
2 A 3395 3377 0.32      
3 A 3044 3028 8.88      
4 A 3010 2994 60.65      
5 A 3005 2989 751.31      
6 A 2953 2937 11.74      
7 A 2939 2923 102.94      
8 A 1742 1733 419.31      
9 A 1614 1606 29.34      
10 A 1478 1470 3.87      
11 A 1444 1436 198.48      
12 A 1430 1423 7.14      
13 A 1370 1363 13.45      
14 A 1320 1313 6.05      
15 A 1272 1265 2.59      
16 A 1246 1240 12.01      
17 A 1175 1168 108.20      
18 A 1111 1105 11.90      
19 A 1023 1017 16.75      
20 A 1001 996 53.26      
21 A 977 972 41.15      
22 A 918 913 2.25      
23 A 885 881 33.80      
24 A 828 823 54.33      
25 A 776 772 10.68      
26 A 662 659 9.43      
27 A 546 543 2.29      
28 A 477 474 9.26      
29 A 400 398 11.12      
30 A 330 328 5.83      
31 A 274 273 10.03      
32 A 195 194 5.88      
33 A 86 85 0.48      

Unscaled Zero Point Vibrational Energy (zpe) 23203.1 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 23080.2 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 BLYP/6-31+G**
ABC
0.23273 0.08190 0.06449

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.920 0.594 0.133
C2 1.388 -0.717 -0.353
C3 0.012 -1.013 0.292
C4 -1.095 0.035 0.022
O5 -0.684 1.334 -0.044
O6 -2.275 -0.272 -0.095
H7 2.688 0.928 -0.457
H8 2.285 0.512 1.089
H9 2.077 -1.558 -0.153
H10 1.277 -0.637 -1.447
H11 -0.369 -1.984 -0.057
H12 0.127 -1.094 1.390
H13 0.323 1.355 0.054

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.49602.49923.06852.71294.28911.02471.02632.17672.10323.45212.76461.7703
C21.49601.54812.62162.93163.69852.09952.09651.10581.10222.18572.18392.3649
C32.49921.54811.54802.47012.43443.38952.85052.18212.18261.09991.10692.3997
C43.06852.62161.54801.36351.22443.91693.57633.55462.86982.14752.15411.9380
O52.71292.93162.47011.36352.26073.42203.28204.00003.11373.33262.93391.0127
O64.28913.69852.43441.22442.26075.11894.77544.53843.81742.56242.94083.0693
H71.02472.09953.38953.91693.42205.11891.65072.57802.32814.24053.74952.4570
H81.02632.09652.85053.57633.28204.77541.65072.42332.96073.81862.70682.3720
H92.17671.10582.18213.55464.00004.53842.57802.42331.77882.48432.52963.4067
H102.10321.10222.18262.86983.11373.81742.32812.96071.77882.54053.09472.6700
H113.45212.18571.09992.14753.33262.56244.24053.81862.48432.54051.76883.4117
H122.76462.18391.10692.15412.93392.94083.74952.70682.52963.09471.76882.7965
H131.77032.36492.39971.93801.01273.06932.45702.37203.40672.67003.41172.7965

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 110.358 N1 C2 H9 112.706
N1 C2 H10 107.118 C2 N1 H7 111.420
C2 N1 H8 111.068 C2 C3 C4 115.720
C2 C3 H11 110.111 C2 C3 H12 109.567
C3 C2 H9 109.487 C3 C2 H10 109.739
C3 C4 O5 115.931 C3 C4 O6 122.392
C4 C3 H11 107.178 C4 C3 H12 107.287
C4 O5 H13 108.387 O5 C4 O6 121.656
H7 N1 H8 107.183 H9 C2 H10 107.335
H11 C3 H12 106.553
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.728      
2 C -0.191      
3 C -0.260      
4 C 0.378      
5 O -0.418      
6 O -0.436      
7 H 0.302      
8 H 0.303      
9 H 0.143      
10 H 0.158      
11 H 0.175      
12 H 0.167      
13 H 0.406      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  6.742 -1.407 0.576 6.911
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.788 1.824 -0.405
y 1.824 -38.709 0.047
z -0.405 0.047 -34.603
Traceless
 xyz
x -4.132 1.824 -0.405
y 1.824 -1.014 0.047
z -0.405 0.047 5.146
Polar
3z2-r210.291
x2-y2-2.079
xy1.824
xz-0.405
yz0.047


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.092 0.357 0.141
y 0.357 8.247 -0.043
z 0.141 -0.043 6.422


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