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

using model chemistry: MP2/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-322.927252
Energy at 298.15K-322.937091
Nuclear repulsion energy246.241637
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/aug-cc-pVDZ
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 3606 3458 11.28      
2 A 3504 3360 1.49      
3 A 3253 3119 771.78      
4 A 3160 3030 5.66      
5 A 3131 3002 16.63      
6 A 3067 2941 6.26      
7 A 3062 2936 47.53      
8 A 1790 1716 364.79      
9 A 1634 1567 25.90      
10 A 1505 1444 14.00      
11 A 1485 1424 207.74      
12 A 1447 1388 7.97      
13 A 1403 1346 12.38      
14 A 1361 1305 14.12      
15 A 1306 1253 5.29      
16 A 1280 1228 14.05      
17 A 1241 1190 76.76      
18 A 1142 1095 9.73      
19 A 1092 1047 6.89      
20 A 1020 979 8.48      
21 A 992 951 86.14      
22 A 958 919 10.54      
23 A 916 879 23.38      
24 A 864 829 51.20      
25 A 813 779 12.99      
26 A 688 660 7.30      
27 A 572 549 2.37      
28 A 485 465 8.94      
29 A 403 387 12.44      
30 A 328 315 6.24      
31 A 281 269 9.53      
32 A 204 196 5.42      
33 A 86 83 0.52      

Unscaled Zero Point Vibrational Energy (zpe) 24038.1 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 23052.5 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 MP2/aug-cc-pVDZ
ABC
0.23744 0.08313 0.06589

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.915 0.572 0.140
C2 1.355 -0.697 -0.381
C3 0.017 -0.992 0.311
C4 -1.083 0.034 0.030
O5 -0.677 1.325 -0.045
O6 -2.255 -0.276 -0.101
H7 2.696 0.890 -0.433
H8 2.280 0.436 1.084
H9 2.036 -1.555 -0.247
H10 1.191 -0.567 -1.462
H11 -0.370 -1.973 0.002
H12 0.169 -1.030 1.406
H13 0.312 1.338 0.069

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.48212.46543.04782.70584.26261.01971.02122.16532.09553.42352.68671.7785
C21.48211.53482.57792.88653.64532.07902.07101.10381.10162.17952.17032.3307
C32.46541.53481.53032.44522.41823.35772.78562.16932.16911.09931.10542.3610
C43.04782.57791.53031.35551.21983.90193.54713.51152.78542.13002.14211.9094
O52.70582.88652.44521.35552.24873.42273.28793.96233.01333.31292.89210.9954
O64.26263.64532.41821.21982.24875.09734.74164.48073.71672.53882.95183.0367
H71.01972.07903.35773.90193.42275.09731.63792.53992.33414.21793.66842.4770
H81.02122.07102.78563.54713.28794.74161.63792.40772.94623.74202.59082.3913
H92.16531.10382.16933.51153.96234.48072.53992.40771.78022.45532.54883.3828
H102.09551.10162.16912.78543.01333.71672.33412.94621.78022.56093.07992.5974
H113.42352.17951.09932.13003.31292.53884.21793.74202.45532.56091.77523.3811
H122.68672.17031.10542.14212.89212.95183.66842.59082.54883.07991.77522.7226
H131.77852.33072.36101.90940.99543.03672.47702.39133.38282.59743.38112.7226

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 109.598 N1 C2 H9 112.905
N1 C2 H10 107.478 C2 N1 H7 111.048
C2 N1 H8 110.279 C2 C3 C4 114.502
C2 C3 H11 110.583 C2 C3 H12 109.508
C3 C2 H9 109.512 C3 C2 H10 109.628
C3 C4 O5 115.708 C3 C4 O6 122.716
C4 C3 H11 107.057 C4 C3 H12 107.638
C4 O5 H13 107.639 O5 C4 O6 121.568
H7 N1 H8 106.747 H9 C2 H10 107.647
H11 C3 H12 107.262
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability