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All results from a given calculation for CH3CH(NH2)COOH (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-322.857064
Energy at 298.15K-322.866674
HF Energy-321.880003
Nuclear repulsion energy250.322504
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
4/u)
Dep P Dep U
1 A 3687 3445 7.64      
2 A 3584 3348 45.62      
3 A 3566 3332 205.15      
4 A 3259 3045 5.70      
5 A 3227 3015 21.67      
6 A 3139 2933 14.60      
7 A 3133 2928 8.89      
8 A 1871 1748 213.41      
9 A 1697 1586 35.66      
10 A 1559 1457 11.47      
11 A 1552 1451 2.47      
12 A 1461 1365 25.68      
13 A 1452 1357 355.75      
14 A 1430 1336 27.95      
15 A 1364 1274 47.58      
16 A 1276 1193 6.64      
17 A 1245 1163 7.82      
18 A 1192 1114 6.11      
19 A 1135 1060 50.66      
20 A 1047 979 0.91      
21 A 975 911 56.82      
22 A 922 861 77.43      
23 A 877 820 98.69      
24 A 821 767 14.92      
25 A 739 690 9.19      
26 A 565 528 7.73      
27 A 541 506 0.78      
28 A 420 392 6.03      
29 A 368 344 19.37      
30 A 309 289 15.17      
31 A 286 267 14.59      
32 A 245 229 1.29      
33 A 76 71 1.39      

Unscaled Zero Point Vibrational Energy (zpe) 24509.6 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 22901.8 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
0.16202 0.11638 0.07211

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 1.057 1.355 -0.056
C2 1.467 -1.136 -0.179
C3 0.644 0.013 0.378
C4 -0.845 -0.169 0.053
O5 -1.505 0.989 -0.124
O6 -1.383 -1.257 -0.002
H7 1.352 1.325 -1.027
H8 1.853 1.677 0.481
H9 1.067 -2.085 0.164
H10 1.429 -1.131 -1.268
H11 0.701 0.003 1.469
H12 2.506 -1.049 0.133
H13 -0.807 1.678 -0.067

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.52741.46932.43922.58893.57461.01491.01213.44682.79052.06862.81291.8915
C22.52741.51952.51673.65442.85792.60542.91471.08551.08942.14561.08803.6195
C31.46931.51951.53452.41302.42182.04802.05892.15112.15271.09292.15752.2523
C42.43922.51671.53451.34501.21522.86703.29622.70912.79972.10333.46501.8509
O52.58893.65442.41301.34502.25323.01453.48024.01893.79652.89394.50640.9823
O63.57462.85792.42181.21522.25323.89784.39412.59133.08582.84493.89642.9917
H71.01492.60542.04802.86703.01453.89781.62683.62312.46912.89822.88302.3880
H81.01212.91472.05893.29623.48024.39411.62683.85583.33472.25952.82422.7151
H93.44681.08552.15112.70914.01892.59133.62313.85581.75832.48971.77324.2099
H102.79051.08942.15272.79973.79653.08582.46913.33471.75833.05111.76883.7854
H112.06862.14561.09292.10332.89392.84492.89822.25952.48973.05112.48042.7268
H122.81291.08802.15753.46504.50643.89642.88302.82421.77321.76882.48044.2950
H131.89153.61952.25231.85090.98232.99172.38802.71514.20993.78542.72684.2950

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.469 N1 C3 C4 108.577
N1 C3 H11 106.761 C2 C3 C4 110.988
C2 C3 H11 109.342 C3 N1 H7 109.700
C3 N1 H8 110.798 C3 C2 H9 110.210
C3 C2 H10 110.111 C3 C2 H12 110.576
C3 C4 O5 113.698 C3 C4 O6 123.044
C4 C3 H11 105.123 C4 O5 H13 104.290
O5 C4 O6 123.227 H7 N1 H8 106.744
H9 C2 H10 107.892 H9 C2 H12 109.335
H10 C2 H12 108.656
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability