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

using model chemistry: CCD/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 CCD/6-31G*
 hartrees
Energy at 0K-322.799902
Energy at 298.15K-322.809790
Nuclear repulsion energy246.704171
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 CCD/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 3601 3409 4.38      
2 A 3513 3325 0.49      
3 A 3463 3278 536.65      
4 A 3165 2996 6.34      
5 A 3128 2961 20.50      
6 A 3075 2910 6.40      
7 A 3060 2897 47.99      
8 A 1928 1825 332.87      
9 A 1722 1630 38.73      
10 A 1569 1485 6.61      
11 A 1530 1448 344.83      
12 A 1524 1443 3.26      
13 A 1462 1383 8.14      
14 A 1415 1340 4.85      
15 A 1360 1287 3.56      
16 A 1342 1270 22.90      
17 A 1292 1223 52.29      
18 A 1184 1120 5.74      
19 A 1123 1063 5.78      
20 A 1070 1012 22.63      
21 A 1010 956 32.24      
22 A 968 916 69.03      
23 A 919 870 50.66      
24 A 897 849 59.89      
25 A 838 793 15.45      
26 A 712 674 11.97      
27 A 588 557 4.87      
28 A 500 473 10.20      
29 A 406 384 16.53      
30 A 335 317 9.79      
31 A 283 268 5.54      
32 A 205 194 4.09      
33 A 87 83 0.51      

Unscaled Zero Point Vibrational Energy (zpe) 24636.0 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 23318.0 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 CCD/6-31G*
ABC
0.23917 0.08278 0.06585

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.934 0.567 0.134
C2 1.352 -0.688 -0.382
C3 0.024 -0.975 0.323
C4 -1.086 0.033 0.030
O5 -0.711 1.323 -0.037
O6 -2.239 -0.299 -0.110
H7 2.711 0.870 -0.452
H8 2.315 0.416 1.068
H9 2.024 -1.552 -0.266
H10 1.178 -0.555 -1.457
H11 -0.361 -1.958 0.038
H12 0.183 -0.994 1.412
H13 0.270 1.379 0.078

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.47622.46223.06902.75634.26921.01911.02032.15822.08833.41412.67181.8531
C21.47621.53102.57612.90183.62272.06832.06081.10031.09692.17422.16302.3785
C32.46221.53101.52772.43922.40103.35042.78182.16332.16211.09411.10072.3794
C43.06902.57611.52771.34531.20803.91833.57663.50322.77192.11962.13951.9111
O52.75632.90182.43921.34532.23023.47693.34653.97463.01883.30122.87590.9887
O64.26923.62272.40101.20802.23025.09814.75804.44593.68192.51042.94403.0243
H71.01912.06833.35043.91833.47695.09811.63532.52432.32194.20473.65262.5501
H81.02032.06082.78183.57663.34654.75801.63532.39522.93443.72282.57912.4681
H92.15821.10032.16333.50323.97464.44592.52432.39521.76792.43842.55223.4333
H102.08831.09692.16212.77193.01883.68192.32192.93441.76792.56373.06772.6314
H113.41412.17421.09412.11963.30122.51044.20473.72282.43842.56371.76403.3971
H122.67182.16301.10072.13952.87592.94403.65262.57912.55223.06771.76402.7242
H131.85312.37852.37941.91110.98873.02432.55012.46813.43332.63143.39712.7242

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 109.908 N1 C2 H9 112.977
N1 C2 H10 107.591 C2 N1 H7 110.629
C2 N1 H8 109.933 C2 C3 C4 114.749
C2 C3 H11 110.736 C2 C3 H12 109.456
C3 C2 H9 109.510 C3 C2 H10 109.616
C3 C4 O5 116.068 C3 C4 O6 122.285
C4 C3 H11 106.724 C4 C3 H12 107.872
C4 O5 H13 108.981 O5 C4 O6 121.634
H7 N1 H8 106.613 H9 C2 H10 107.148
H11 C3 H12 106.973
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability