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

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-323.626010
Energy at 298.15K-323.635840
Nuclear repulsion energy248.146221
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 B1B95/6-31G**
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 3636 3471 7.61      
2 A 3542 3382 1.23      
3 A 3282 3134 716.15      
4 A 3160 3018 5.64      
5 A 3113 2972 20.35      
6 A 3060 2922 6.24      
7 A 3037 2900 64.15      
8 A 1894 1808 377.38      
9 A 1658 1583 33.66      
10 A 1520 1451 27.37      
11 A 1501 1434 277.10      
12 A 1466 1399 9.00      
13 A 1420 1356 10.14      
14 A 1371 1309 10.77      
15 A 1317 1257 9.65      
16 A 1304 1245 23.18      
17 A 1262 1205 44.69      
18 A 1147 1095 5.70      
19 A 1097 1047 5.81      
20 A 1026 980 9.09      
21 A 996 951 95.34      
22 A 962 919 22.17      
23 A 917 875 20.21      
24 A 876 836 39.62      
25 A 818 781 26.66      
26 A 694 663 10.25      
27 A 578 551 2.72      
28 A 486 464 10.09      
29 A 409 391 14.37      
30 A 332 317 6.67      
31 A 284 272 8.84      
32 A 198 189 4.23      
33 A 88 84 0.43      

Unscaled Zero Point Vibrational Energy (zpe) 24226.1 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 23131.1 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 B1B95/6-31G**
ABC
0.24234 0.08410 0.06669

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.902 0.569 0.153
C2 1.356 -0.688 -0.372
C3 0.014 -0.990 0.288
C4 -1.081 0.040 0.024
O5 -0.673 1.308 -0.058
O6 -2.241 -0.271 -0.080
H7 2.681 0.895 -0.407
H8 2.243 0.443 1.100
H9 2.034 -1.541 -0.239
H10 1.213 -0.560 -1.448
H11 -0.370 -1.955 -0.043
H12 0.148 -1.062 1.375
H13 0.312 1.332 0.056

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.46692.45173.03232.68794.23401.01321.01472.14972.07653.40122.68891.7662
C21.46691.52562.57432.86403.63342.06432.05711.09731.09372.16642.15662.3134
C32.45171.52561.52642.42362.39593.33862.77112.15842.15341.09011.09742.3519
C43.03232.57431.52641.33461.20583.88193.51703.50272.79112.11862.13321.9000
O52.68792.86402.42361.33462.22533.39773.25533.93422.99653.27692.88940.9924
O64.23403.63342.39591.20582.22535.06904.69174.46243.72662.51752.90743.0177
H71.01322.06433.33863.88193.39775.06901.63342.52612.31424.19063.66362.4528
H81.01472.05712.77113.51703.25534.69171.63342.40272.92603.72612.59422.3683
H92.14971.09732.15843.50273.93424.46242.52612.40271.76052.44682.52753.3619
H102.07651.09372.15342.79112.99653.72662.31422.92601.76052.53513.05902.5790
H113.40122.16641.09012.11863.27692.51754.19063.72612.44682.53511.75373.3578
H122.68892.15661.09742.13322.88942.90743.66362.59422.52753.05901.75372.7382
H131.76622.31342.35191.90000.99243.01772.45282.36833.36192.57903.35782.7382

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 110.006 N1 C2 H9 113.143
N1 C2 H10 107.478 C2 N1 H7 111.364
C2 N1 H8 110.654 C2 C3 C4 115.019
C2 C3 H11 110.730 C2 C3 H12 109.525
C3 C2 H9 109.673 C3 C2 H10 109.490
C3 C4 O5 115.634 C3 C4 O6 122.111
C4 C3 H11 106.948 C4 C3 H12 107.657
C4 O5 H13 108.579 O5 C4 O6 122.244
H7 N1 H8 107.310 H9 C2 H10 106.935
H11 C3 H12 106.580
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.666      
2 C -0.131      
3 C -0.331      
4 C 0.583      
5 O -0.507      
6 O -0.462      
7 H 0.280      
8 H 0.276      
9 H 0.128      
10 H 0.154      
11 H 0.163      
12 H 0.150      
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
  6.491 -1.192 0.590 6.626
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.024 1.672 -0.204
y 1.672 -36.678 0.081
z -0.204 0.081 -33.014
Traceless
 xyz
x -3.179 1.672 -0.204
y 1.672 -1.158 0.081
z -0.204 0.081 4.337
Polar
3z2-r28.674
x2-y2-1.347
xy1.672
xz-0.204
yz0.081


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.934 0.466 0.114
y 0.466 6.377 -0.018
z 0.114 -0.018 5.196


<r2> (average value of r2) Å2
<r2> 170.375
(<r2>)1/2 13.053