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

using model chemistry: B3PW91/6-31+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 B3PW91/6-31+G**
 hartrees
Energy at 0K-323.653402
Energy at 298.15K-323.663266
Nuclear repulsion energy247.477423
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 B3PW91/6-31+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 3630 3485 12.96      
2 A 3536 3395 1.93      
3 A 3183 3056 876.47      
4 A 3145 3020 4.96      
5 A 3104 2980 18.69      
6 A 3050 2928 6.15      
7 A 3033 2912 68.91      
8 A 1848 1774 463.63      
9 A 1658 1592 38.79      
10 A 1516 1455 28.95      
11 A 1499 1439 237.16      
12 A 1462 1403 10.41      
13 A 1415 1358 11.03      
14 A 1368 1313 11.58      
15 A 1313 1260 5.64      
16 A 1298 1246 31.12      
17 A 1254 1204 66.98      
18 A 1148 1103 6.73      
19 A 1087 1044 7.41      
20 A 1037 995 71.91      
21 A 1016 976 48.20      
22 A 963 925 2.35      
23 A 918 881 33.44      
24 A 872 837 46.18      
25 A 817 785 21.98      
26 A 694 667 10.08      
27 A 574 551 2.51      
28 A 493 473 9.62      
29 A 413 397 12.92      
30 A 339 326 6.35      
31 A 286 274 10.77      
32 A 202 194 5.61      
33 A 89 85 0.55      

Unscaled Zero Point Vibrational Energy (zpe) 24129.2 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 23166.5 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 B3PW91/6-31+G**
ABC
0.23987 0.08403 0.06631

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.896 0.580 0.139
C2 1.369 -0.703 -0.354
C3 0.009 -1.000 0.284
C4 -1.081 0.039 0.021
O5 -0.670 1.311 -0.050
O6 -2.247 -0.264 -0.087
H7 2.660 0.920 -0.436
H8 2.243 0.496 1.091
H9 2.052 -1.544 -0.170
H10 1.253 -0.614 -1.439
H11 -0.373 -1.963 -0.063
H12 0.122 -1.084 1.375
H13 0.324 1.332 0.050

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.47232.46523.02762.67404.23411.01481.01632.15212.08163.41412.72811.7444
C21.47231.53062.58672.88133.65202.07502.07101.09871.09552.16912.16492.3224
C32.46521.53061.52942.43222.40253.35082.80702.16132.16001.09261.09942.3650
C43.02762.58671.52941.33851.21013.86973.52153.51482.82952.12552.13101.9092
O52.67402.88132.43221.33852.22983.37413.23253.94563.05483.28752.89730.9988
O64.23413.65202.40251.21012.22985.05954.70414.48583.76822.52972.90223.0294
H71.01482.07503.35083.86973.37415.05951.63822.55112.31064.20053.70582.4208
H81.01632.07102.80703.52153.23254.70411.63822.40562.93533.77132.66032.3377
H92.15211.09872.16133.51483.94564.48582.55112.40561.76462.46272.51383.3617
H102.08161.09552.16002.82953.05483.76822.31062.93531.76462.52093.06892.6205
H113.41412.16911.09262.12553.28752.52974.20053.77132.46272.52091.75643.3697
H122.72812.16491.09942.13102.89732.90223.70582.66032.51383.06891.75642.7630
H131.74442.32242.36501.90920.99883.02942.42082.33773.36172.62053.36972.7630

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 110.348 N1 C2 H9 112.856
N1 C2 H10 107.421 C2 N1 H7 111.773
C2 N1 H8 111.335 C2 C3 C4 115.418
C2 C3 H11 110.453 C2 C3 H12 109.711
C3 C2 H9 109.474 C3 C2 H10 109.562
C3 C4 O5 115.850 C3 C4 O6 122.140
C4 C3 H11 107.145 C4 C3 H12 107.184
C4 O5 H13 108.671 O5 C4 O6 121.992
H7 N1 H8 107.527 H9 C2 H10 107.072
H11 C3 H12 106.507
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.755      
2 C -0.235      
3 C -0.280      
4 C 0.358      
5 O -0.440      
6 O -0.453      
7 H 0.320      
8 H 0.321      
9 H 0.165      
10 H 0.183      
11 H 0.202      
12 H 0.192      
13 H 0.422      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  6.834 -1.394 0.591 7.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.036 1.830 -0.347
y 1.830 -37.773 0.063
z -0.347 0.063 -33.778
Traceless
 xyz
x -4.260 1.830 -0.347
y 1.830 -0.866 0.063
z -0.347 0.063 5.126
Polar
3z2-r210.252
x2-y2-2.263
xy1.830
xz-0.347
yz0.063


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.236 0.368 0.129
y 0.368 7.531 -0.032
z 0.129 -0.032 6.019


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