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

using model chemistry: MP2=FULL/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-323.271709
Energy at 298.15K-323.281264
HF Energy-321.992370
Nuclear repulsion energy251.751244
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/cc-pVTZ
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 3647 3462 13.26      
2 A 3548 3369 5.22      
3 A 3512 3334 278.90      
4 A 3197 3035 3.69      
5 A 3166 3006 18.30      
6 A 3111 2954 8.60      
7 A 3092 2936 10.74      
8 A 1856 1762 252.82      
9 A 1660 1576 32.99      
10 A 1524 1447 13.67      
11 A 1515 1438 3.55      
12 A 1440 1367 380.95      
13 A 1418 1346 5.81      
14 A 1402 1331 7.53      
15 A 1335 1267 17.42      
16 A 1258 1194 15.03      
17 A 1230 1168 8.71      
18 A 1178 1118 7.14      
19 A 1116 1059 44.00      
20 A 1027 975 0.91      
21 A 952 904 29.01      
22 A 899 853 73.92      
23 A 869 825 99.08      
24 A 820 778 9.70      
25 A 746 708 7.09      
26 A 577 548 4.84      
27 A 541 514 0.70      
28 A 411 390 5.47      
29 A 365 346 15.03      
30 A 285 270 9.56      
31 A 281 266 19.50      
32 A 238 226 0.80      
33 A 67 64 1.20      

Unscaled Zero Point Vibrational Energy (zpe) 24139.9 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 22918.4 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/cc-pVTZ
ABC
0.16412 0.11726 0.07306

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.091 1.323 -0.024
C2 1.425 -1.159 -0.209
C3 0.638 -0.009 0.378
C4 -0.847 -0.151 0.056
O5 -1.462 1.014 -0.163
O6 -1.416 -1.211 0.035
H7 1.436 1.300 -0.974
H8 1.851 1.641 0.558
H9 0.995 -2.105 0.098
H10 1.393 -1.116 -1.295
H11 0.690 -0.052 1.463
H12 2.462 -1.114 0.109
H13 -0.738 1.674 -0.116

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.51121.46282.43562.57593.56451.01151.00843.43072.76622.06382.79881.8648
C22.51121.51272.50033.61502.85212.57542.93421.08291.08712.13621.08493.5659
C31.46281.51271.52572.39802.40382.04382.05572.14442.14301.08722.14952.2288
C42.43562.50031.52571.33561.20352.89363.27712.68592.78792.08613.44641.8355
O52.57593.61502.39801.33562.23463.02283.44833.97963.73802.90064.47250.9807
O63.56452.85212.40381.20352.23463.93074.36762.57213.10912.79573.87922.9670
H71.01152.57542.04382.89363.02283.93071.62403.59612.43682.88492.83792.3666
H81.00842.93422.05573.27713.44834.36761.62403.86933.35262.24302.85712.6755
H93.43071.08292.14442.68593.97962.57213.59613.86931.75352.48431.76964.1625
H102.76621.08712.14302.78793.73803.10912.43683.35261.75353.03821.76443.7030
H112.06382.13621.08722.08612.90062.79572.88492.24302.48433.03822.46982.7402
H122.79881.08492.14953.44644.47253.87922.83792.85711.76961.76442.46984.2497
H131.86483.56592.22881.83550.98072.96702.36662.67554.16253.70302.74024.2497

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.112 N1 C3 C4 109.155
N1 C3 H11 107.144 C2 C3 C4 110.749
C2 C3 H11 109.403 C3 N1 H7 110.046
C3 N1 H8 111.250 C3 C2 H9 110.311
C3 C2 H10 109.958 C3 C2 H12 110.600
C3 C4 O5 113.712 C3 C4 O6 123.041
C4 C3 H11 104.706 C4 O5 H13 103.768
O5 C4 O6 123.220 H7 N1 H8 107.030
H9 C2 H10 107.820 H9 C2 H12 109.436
H10 C2 H12 108.654
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability