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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G**
 hartrees
Energy at 0K-322.856220
Energy at 298.15K-322.866151
HF Energy-321.879399
Nuclear repulsion energy247.689808
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=FULL/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3685 3444 8.70      
2 A 3583 3348 1.16      
3 A 3354 3134 713.36      
4 A 3225 3014 5.83      
5 A 3193 2983 18.92      
6 A 3130 2925 6.22      
7 A 3115 2911 52.24      
8 A 1865 1742 295.26      
9 A 1692 1581 33.40      
10 A 1571 1468 3.07      
11 A 1521 1421 40.25      
12 A 1519 1419 254.64      
13 A 1458 1362 10.48      
14 A 1409 1316 6.16      
15 A 1352 1264 4.37      
16 A 1328 1240 15.97      
17 A 1285 1201 69.37      
18 A 1176 1099 6.87      
19 A 1120 1046 4.39      
20 A 1057 988 11.62      
21 A 1019 953 93.42      
22 A 982 917 32.00      
23 A 943 881 21.04      
24 A 895 836 53.23      
25 A 832 777 13.52      
26 A 704 658 9.04      
27 A 581 543 3.37      
28 A 499 466 9.87      
29 A 413 386 14.56      
30 A 340 318 7.59      
31 A 287 268 8.52      
32 A 210 197 4.90      
33 A 91 85 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 24716.0 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 23094.7 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=FULL/6-31G**
ABC
0.24026 0.08404 0.06663

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.906 0.565 0.136
C2 1.345 -0.694 -0.379
C3 0.018 -0.983 0.315
C4 -1.077 0.038 0.029
O5 -0.672 1.319 -0.040
O6 -2.244 -0.279 -0.105
H7 2.679 0.879 -0.438
H8 2.271 0.425 1.072
H9 2.019 -1.545 -0.257
H10 1.176 -0.564 -1.447
H11 -0.368 -1.955 0.019
H12 0.175 -1.015 1.397
H13 0.312 1.338 0.073

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.47162.44813.03172.69204.24171.01291.01412.14912.07733.39642.66121.7728
C21.47161.52482.56282.86983.62272.06352.05361.09261.08952.16372.15032.3237
C32.44811.52481.52482.43012.40613.33392.76262.15582.15011.08691.09312.3523
C43.03172.56281.52481.34621.21603.87773.52843.48942.76002.11532.13271.9035
O52.69202.86982.43011.34622.24293.40333.27053.93632.99023.28922.86920.9906
O64.24173.62272.40611.21602.24295.06824.71844.44973.68482.51862.94053.0296
H71.01292.06353.33393.87773.40335.06821.62902.51832.31504.18623.63652.4647
H81.01412.05362.76263.52843.27054.71841.62902.39032.92003.70672.56382.3808
H92.14911.09262.15583.48943.93634.44972.51832.39031.75792.43812.53333.3667
H102.07731.08952.15012.76002.99023.68482.31502.92001.75792.54353.04862.5834
H113.39642.16371.08692.11533.28922.51864.18623.70672.43812.54351.75383.3630
H122.66122.15031.09312.13272.86922.94053.63652.56382.53333.04861.75382.7035
H131.77282.32372.35231.90350.99063.02962.46472.38083.36672.58343.36302.7035

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 109.559 N1 C2 H9 113.048
N1 C2 H10 107.469 C2 N1 H7 110.956
C2 N1 H8 110.047 C2 C3 C4 114.360
C2 C3 H11 110.772 C2 C3 H12 109.339
C3 C2 H9 109.803 C3 C2 H10 109.537
C3 C4 O5 115.518 C3 C4 O6 122.373
C4 C3 H11 106.989 C4 C3 H12 107.970
C4 O5 H13 108.126 O5 C4 O6 122.096
H7 N1 H8 106.957 H9 C2 H10 107.335
H11 C3 H12 107.124
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability