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

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-322.971711
Energy at 298.15K-322.981666
HF Energy-321.954554
Nuclear repulsion energy247.690472
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 MP2/6-311G**
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 3635 3454 8.95      
2 A 3540 3364 0.31      
3 A 3379 3210 727.07      
4 A 3172 3014 6.53      
5 A 3140 2983 19.68      
6 A 3079 2926 6.99      
7 A 3068 2915 50.37      
8 A 1851 1759 313.21      
9 A 1651 1568 32.52      
10 A 1535 1459 14.29      
11 A 1520 1444 225.50      
12 A 1479 1406 11.71      
13 A 1439 1367 7.80      
14 A 1385 1316 11.28      
15 A 1333 1266 6.97      
16 A 1306 1241 16.27      
17 A 1266 1203 82.47      
18 A 1160 1102 8.84      
19 A 1108 1053 4.23      
20 A 1044 992 10.19      
21 A 1016 965 93.80      
22 A 976 927 11.02      
23 A 938 891 25.40      
24 A 888 844 44.70      
25 A 829 788 14.04      
26 A 703 668 8.23      
27 A 583 554 2.91      
28 A 497 472 9.60      
29 A 418 397 14.69      
30 A 343 326 5.56      
31 A 290 275 7.46      
32 A 214 203 4.67      
33 A 88 84 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 24435.1 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 23218.2 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 MP2/6-311G**
ABC
0.24048 0.08393 0.06661

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.907 0.568 0.143
C2 1.348 -0.692 -0.383
C3 0.018 -0.987 0.311
C4 -1.083 0.038 0.029
O5 -0.673 1.316 -0.045
O6 -2.241 -0.276 -0.100
H7 2.681 0.886 -0.431
H8 2.272 0.420 1.079
H9 2.027 -1.545 -0.260
H10 1.178 -0.554 -1.455
H11 -0.369 -1.962 0.010
H12 0.176 -1.018 1.397
H13 0.306 1.319 0.072

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.47472.45263.03882.69264.24031.01501.01622.15402.08363.40572.66231.7696
C21.47471.52952.57202.86873.62482.06592.05571.09711.09422.17192.15632.3103
C32.45261.52951.53032.42992.40343.33972.76602.16252.15641.09161.09812.3363
C43.03882.57201.53031.34371.20703.88623.53603.50212.76842.12442.13841.8904
O52.69262.86872.42991.34372.23543.40383.27673.93952.98463.29252.87180.9863
O64.24033.62482.40341.20702.23545.06894.71624.45613.68822.52222.93833.0110
H71.01502.06593.33973.88623.40385.06891.63332.52282.31974.19643.63982.4663
H81.01622.05572.76603.53603.27674.71621.63332.39032.92693.71372.56192.3844
H92.15401.09712.16253.50213.93954.45612.52282.39031.76942.44712.53993.3578
H102.08361.09422.15642.76842.98463.68822.31972.92691.76942.55323.05812.5692
H113.40572.17191.09162.12443.29252.52224.19643.71372.44712.55321.76413.3509
H122.66232.15631.09812.13842.87182.93833.63982.56192.53993.05811.76412.6901
H131.76962.31032.33631.89040.98633.01102.46632.38443.35782.56923.35092.6901

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 109.443 N1 C2 H9 112.947
N1 C2 H10 107.487 C2 N1 H7 110.800
C2 N1 H8 109.870 C2 C3 C4 114.407
C2 C3 H11 110.807 C2 C3 H12 109.197
C3 C2 H9 109.743 C3 C2 H10 109.438
C3 C4 O5 115.297 C3 C4 O6 122.367
C4 C3 H11 107.055 C4 C3 H12 107.759
C4 O5 H13 107.462 O5 C4 O6 122.329
H7 N1 H8 107.045 H9 C2 H10 107.700
H11 C3 H12 107.341
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability