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

using model chemistry: MP2=FULL/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-322.881316
Energy at 298.15K-322.890835
HF Energy-321.889517
Nuclear repulsion energy249.818981
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/6-31+G**
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 3690 3466 16.23      
2 A 3581 3364 1.85      
3 A 3534 3319 288.72      
4 A 3247 3050 4.78      
5 A 3216 3020 21.23      
6 A 3139 2948 8.82      
7 A 3122 2932 14.31      
8 A 1831 1720 274.00      
9 A 1689 1587 39.93      
10 A 1546 1452 12.43      
11 A 1539 1445 2.39      
12 A 1451 1363 15.13      
13 A 1426 1339 303.04      
14 A 1416 1330 76.48      
15 A 1343 1262 35.20      
16 A 1267 1190 14.01      
17 A 1235 1160 11.22      
18 A 1182 1110 6.39      
19 A 1110 1043 47.40      
20 A 1042 979 0.64      
21 A 968 909 48.15      
22 A 907 852 85.49      
23 A 878 824 111.57      
24 A 818 768 7.06      
25 A 737 692 8.50      
26 A 572 537 5.09      
27 A 536 503 1.79      
28 A 416 391 5.02      
29 A 359 337 11.58      
30 A 289 271 14.91      
31 A 283 266 13.09      
32 A 246 231 1.68      
33 A 54 51 1.02      

Unscaled Zero Point Vibrational Energy (zpe) 24334.0 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 22854.5 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=FULL/6-31+G**
ABC
0.16192 0.11489 0.07213

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.125 1.309 0.005
C2 1.414 -1.181 -0.244
C3 0.644 -0.028 0.383
C4 -0.854 -0.137 0.059
O5 -1.451 1.041 -0.207
O6 -1.456 -1.196 0.075
H7 1.555 1.295 -0.914
H8 1.815 1.657 0.658
H9 0.979 -2.132 0.051
H10 1.371 -1.113 -1.331
H11 0.703 -0.102 1.472
H12 2.457 -1.150 0.067
H13 -0.725 1.705 -0.165

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.51921.47022.45082.59773.59671.01501.01233.44422.77732.07822.79691.8988
C22.51921.52202.51483.62552.88792.56913.00521.08641.09032.14781.08863.5929
C31.47021.52201.53602.42432.42232.06492.07092.15612.15551.09262.15522.2752
C42.45082.51481.53601.34691.21802.96633.27142.70902.79932.10283.46181.8598
O52.59773.62552.42431.34692.25393.09803.43444.00443.72372.96044.48770.9846
O63.59672.88792.42231.21802.25394.03084.37962.60913.15892.79473.91333.0006
H71.01502.56912.06492.96633.09804.03081.63383.60662.45102.89272.78392.4342
H81.01233.00522.07093.27143.43444.37961.63383.92763.43932.23472.93912.6707
H93.44421.08642.15612.70904.00442.60913.60663.92761.76152.49291.77474.2035
H102.77731.09032.15552.79933.72373.15892.45103.43931.76153.05371.77033.7003
H112.07822.14781.09262.10282.96042.79472.89272.23472.49293.05372.47902.8257
H122.79691.08862.15523.46184.48773.91332.78392.93911.77471.77032.47904.2804
H131.89883.59292.27521.85980.98463.00062.43422.67074.20353.70032.82574.2804

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 114.678 N1 C3 C4 109.204
N1 C3 H11 107.450 C2 C3 C4 110.648
C2 C3 H11 109.365 C3 N1 H7 111.048
C3 N1 H8 111.736 C3 C2 H9 110.395
C3 C2 H10 110.112 C3 C2 H12 110.190
C3 C4 O5 114.315 C3 C4 O6 122.757
C4 C3 H11 105.004 C4 O5 H13 104.749
O5 C4 O6 122.902 H7 N1 H8 107.393
H9 C2 H10 108.050 H9 C2 H12 109.369
H10 C2 H12 108.675
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability