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All results from a given calculation for CH3CH(NH2)COOH (Alanine)

using model chemistry: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-323.780692
Energy at 298.15K-323.790127
HF Energy-323.780692
Nuclear repulsion energy249.757392
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 TPSSh/6-31G(2df,p)
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 3570 3445 4.77      
2 A 3481 3359 0.22      
3 A 3363 3245 271.18      
4 A 3139 3029 8.09      
5 A 3106 2997 30.58      
6 A 3043 2937 14.83      
7 A 3034 2928 15.99      
8 A 1850 1785 266.30      
9 A 1662 1603 25.89      
10 A 1509 1456 8.23      
11 A 1501 1448 3.81      
12 A 1434 1383 380.49      
13 A 1405 1356 3.97      
14 A 1388 1340 5.38      
15 A 1313 1267 8.94      
16 A 1233 1190 10.63      
17 A 1209 1167 12.27      
18 A 1141 1101 7.59      
19 A 1087 1049 43.79      
20 A 1013 977 0.85      
21 A 944 911 58.41      
22 A 907 875 49.15      
23 A 866 836 81.09      
24 A 796 768 5.87      
25 A 726 701 6.25      
26 A 558 538 3.79      
27 A 523 505 0.85      
28 A 395 381 5.51      
29 A 355 343 17.24      
30 A 301 291 15.42      
31 A 263 254 12.97      
32 A 219 211 0.27      
33 A 77 75 1.14      

Unscaled Zero Point Vibrational Energy (zpe) 23703.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 22874.3 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 TPSSh/6-31G(2df,p)
ABC
0.16112 0.11539 0.07182

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.083 1.338 0.001
C2 1.442 -1.174 -0.230
C3 0.646 -0.020 0.381
C4 -0.859 -0.153 0.065
O5 -1.447 1.024 -0.187
O6 -1.447 -1.207 0.053
H7 1.413 1.338 -0.962
H8 1.863 1.642 0.575
H9 0.989 -2.127 0.049
H10 1.435 -1.108 -1.325
H11 0.711 -0.077 1.475
H12 2.481 -1.153 0.113
H13 -0.694 1.663 -0.153

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.54761.47692.44982.55713.58881.01801.01523.46712.80422.07712.85831.8133
C22.54761.52902.53453.63032.90242.61662.95871.09211.09612.15561.09453.5514
C31.47691.52901.54362.40742.42772.05912.06952.16062.17171.09722.17302.2166
C42.44982.53451.54361.33991.20642.90593.30072.70452.84762.11143.48681.8364
O52.55713.63032.40741.33992.24382.98043.45313.99053.76172.93804.50110.9883
O63.58882.90242.42771.20642.24383.96074.39802.60393.19592.82003.92832.9737
H71.01802.61662.05912.90592.98043.96071.63063.63512.47322.90472.91572.2804
H81.01522.95872.06953.30073.45314.39801.63063.90503.36962.25662.89922.6590
H93.46711.09212.16062.70453.99052.60393.63513.90501.76762.51341.78314.1520
H102.80421.09612.17172.84763.76173.19592.47323.36961.76763.07031.77783.6856
H112.07712.15561.09722.11142.93802.82002.90472.25662.51343.07032.47952.7658
H122.85831.09452.17303.48684.50113.92832.91572.89921.78311.77782.47954.2517
H131.81333.55142.21661.83640.98832.97372.28042.65904.15203.68562.76584.2517

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.877 N1 C3 C4 108.374
N1 C3 H11 106.660 C2 C3 C4 111.146
C2 C3 H11 109.227 C3 N1 H7 109.880
C3 N1 H8 110.921 C3 C2 H9 109.919
C3 C2 H10 110.559 C3 C2 H12 110.758
C3 C4 O5 113.014 C3 C4 O6 123.497
C4 C3 H11 104.906 C4 O5 H13 103.097
O5 C4 O6 123.488 H7 N1 H8 106.641
H9 C2 H10 107.764 H9 C2 H12 109.270
H10 C2 H12 108.501
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability