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

using model chemistry: M06-2X/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at M06-2X/3-21G*
 hartrees
Energy at 0K-321.810067
Energy at 298.15K-321.819764
HF Energy-321.810067
Nuclear repulsion energy249.450800
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 M06-2X/3-21G*
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 3553 3366 15.36      
2 A 3442 3260 4.65      
3 A 3171 3004 1.21      
4 A 3138 2973 12.66      
5 A 3112 2948 5.08      
6 A 3068 2906 10.14      
7 A 2982 2824 353.05      
8 A 1861 1763 280.70      
9 A 1710 1619 47.32      
10 A 1568 1486 14.11      
11 A 1552 1470 8.20      
12 A 1464 1387 453.65      
13 A 1457 1381 37.20      
14 A 1405 1331 23.96      
15 A 1345 1274 11.08      
16 A 1258 1192 5.35      
17 A 1226 1161 23.94      
18 A 1174 1112 15.51      
19 A 1107 1049 51.56      
20 A 1073 1017 98.41      
21 A 1044 989 15.94      
22 A 959 908 42.37      
23 A 851 806 138.69      
24 A 803 760 8.75      
25 A 740 701 5.02      
26 A 582 552 2.33      
27 A 539 511 0.67      
28 A 412 391 8.86      
29 A 369 349 21.98      
30 A 355 336 13.02      
31 A 282 267 16.55      
32 A 248 235 0.66      
33 A 94 89 2.21      

Unscaled Zero Point Vibrational Energy (zpe) 23972.3 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 22706.5 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 M06-2X/3-21G*
ABC
0.15678 0.11866 0.07251

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.099 1.315 -0.030
C2 1.389 -1.221 -0.224
C3 0.653 -0.037 0.406
C4 -0.858 -0.137 0.066
O5 -1.394 1.077 -0.176
O6 -1.461 -1.198 0.038
H7 1.483 1.301 -0.980
H8 1.759 1.759 0.612
H9 0.845 -2.133 0.031
H10 1.388 -1.123 -1.315
H11 0.732 -0.081 1.499
H12 2.420 -1.290 0.130
H13 -0.575 1.704 -0.150

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.55961.48952.43922.50923.58851.02521.02173.45792.77092.10262.92521.7233
C22.55961.52982.51163.60962.86252.63453.11651.09241.09552.16701.09273.5239
C31.48951.52981.55202.40232.43972.09872.11942.13782.16401.09592.18422.2022
C42.43922.51161.55201.34911.22082.94013.27762.62382.81482.14173.47601.8752
O52.50923.60962.40231.34912.28632.99613.32103.91923.72532.94454.49991.0318
O63.58852.86252.43971.22082.28633.99424.40942.48833.15532.86233.88403.0403
H71.02522.63452.09872.94012.99613.99421.67953.63622.44862.93592.97072.2557
H81.02173.11652.11943.27763.32104.40941.67954.03973.48622.28613.15652.4562
H93.45791.09242.13782.62383.91922.48833.63624.03971.76812.52521.78994.0953
H102.77091.09552.16402.81483.72533.15532.44863.48621.76813.07081.78403.6334
H112.10262.16701.09592.14172.94452.86232.93592.28612.52523.07082.48632.7599
H122.92521.09272.18423.47604.49993.88402.97073.15651.78991.78402.48634.2446
H131.72333.52392.20221.87521.03183.04032.25572.45624.09533.63342.75994.2446

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.928 N1 C3 C4 106.618
N1 C3 H11 107.859 C2 C3 C4 109.168
C2 C3 H11 110.139 C3 N1 H7 111.810
C3 N1 H8 113.821 C3 C2 H9 108.070
C3 C2 H10 109.924 C3 C2 H12 111.703
C3 C4 O5 111.610 C3 C4 O6 122.803
C4 C3 H11 106.699 C4 O5 H13 103.117
O5 C4 O6 125.584 H7 N1 H8 110.271
H9 C2 H10 107.832 H9 C2 H12 110.003
H10 C2 H12 109.225
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.729      
2 C -0.562      
3 C -0.246      
4 C 0.720      
5 O -0.615      
6 O -0.501      
7 H 0.309      
8 H 0.313      
9 H 0.245      
10 H 0.202      
11 H 0.261      
12 H 0.200      
13 H 0.402      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  5.794 2.059 0.453 6.166
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.742 1.061 -0.555
y 1.061 -36.867 0.211
z -0.555 0.211 -33.208
Traceless
 xyz
x -4.704 1.061 -0.555
y 1.061 -0.392 0.211
z -0.555 0.211 5.097
Polar
3z2-r210.193
x2-y2-2.875
xy1.061
xz-0.555
yz0.211


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.835 0.466 0.111
y 0.466 6.629 -0.087
z 0.111 -0.087 4.468


<r2> (average value of r2) Å2
<r2> 161.209
(<r2>)1/2 12.697