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

using model chemistry: TPSSh/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 TPSSh/6-31+G**
 hartrees
Energy at 0K-323.777878
Energy at 298.15K-323.787276
HF Energy-323.777878
Nuclear repulsion energy249.143791
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/6-31+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 3593 3459 9.40      
2 A 3498 3367 0.12      
3 A 3347 3221 320.05      
4 A 3150 3032 7.81      
5 A 3119 3002 31.09      
6 A 3064 2949 10.68      
7 A 3046 2931 20.32      
8 A 1828 1759 332.47      
9 A 1668 1606 35.59      
10 A 1519 1462 10.22      
11 A 1510 1453 3.26      
12 A 1420 1367 221.36      
13 A 1416 1363 178.30      
14 A 1387 1335 9.29      
15 A 1310 1261 9.88      
16 A 1234 1187 14.66      
17 A 1210 1165 16.11      
18 A 1140 1098 10.21      
19 A 1078 1037 42.37      
20 A 1014 976 1.35      
21 A 942 907 59.98      
22 A 917 883 64.39      
23 A 860 828 99.89      
24 A 796 766 4.68      
25 A 723 696 6.91      
26 A 563 542 3.30      
27 A 521 501 1.60      
28 A 398 383 5.51      
29 A 354 341 13.19      
30 A 288 277 15.55      
31 A 262 252 12.71      
32 A 231 222 0.31      
33 A 61 58 1.03      

Unscaled Zero Point Vibrational Energy (zpe) 23732.6 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 22842.7 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/6-31+G**
ABC
0.16082 0.11410 0.07172

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.048 1.368 -0.048
C2 1.493 -1.139 -0.183
C3 0.647 0.013 0.373
C4 -0.852 -0.179 0.055
O5 -1.507 0.978 -0.128
O6 -1.393 -1.260 0.002
H7 1.324 1.381 -1.028
H8 1.833 1.716 0.495
H9 1.118 -2.101 0.173
H10 1.456 -1.149 -1.278
H11 0.701 -0.001 1.469
H12 2.536 -1.024 0.128
H13 -0.832 1.688 -0.089

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.54921.47432.45252.58653.58751.01881.01623.47602.83132.07222.82191.9075
C22.54921.53332.54543.67272.89502.66342.95441.09211.09562.15711.09473.6615
C31.47431.53331.54452.41352.43342.07232.07962.17442.17511.09792.16852.2820
C42.45252.54541.54451.34251.21022.88883.31642.75492.83722.10813.49291.8732
O52.58653.67272.41351.34252.24512.99853.47774.05773.82562.89614.51940.9812
O63.58752.89502.43341.21022.24513.92714.41772.65423.12602.85083.93873.0031
H71.01882.66342.07232.88882.99853.92711.64113.68912.54642.92162.93122.3713
H81.01622.95442.07963.31643.47774.41771.64113.89673.39122.27582.85252.7284
H93.47601.09212.17442.75494.05772.65423.68913.89671.76802.50251.78104.2694
H102.83131.09562.17512.83723.82563.12602.54643.39121.76803.07211.77783.8343
H112.07222.15711.09792.10812.89612.85082.92162.27582.50253.07212.49222.7624
H122.82191.09472.16853.49294.51943.93872.93122.85251.78101.77782.49224.3295
H131.90753.66152.28201.87320.98123.00312.37132.72844.26943.83432.76244.3295

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.889 N1 C3 C4 108.645
N1 C3 H11 106.422 C2 C3 C4 111.586
C2 C3 H11 109.008 C3 N1 H7 111.125
C3 N1 H8 111.921 C3 C2 H9 110.710
C3 C2 H10 110.558 C3 C2 H12 110.091
C3 C4 O5 113.254 C3 C4 O6 123.650
C4 C3 H11 104.569 C4 O5 H13 106.398
O5 C4 O6 123.082 H7 N1 H8 107.497
H9 C2 H10 107.837 H9 C2 H12 109.063
H10 C2 H12 108.517
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.695      
2 C -0.548      
3 C -0.021      
4 C 0.396      
5 O -0.418      
6 O -0.442      
7 H 0.315      
8 H 0.312      
9 H 0.200      
10 H 0.162      
11 H 0.190      
12 H 0.160      
13 H 0.390      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  5.332 1.999 0.392 5.708
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.335 0.255 0.099
y 0.255 8.634 -0.109
z 0.099 -0.109 6.133


<r2> (average value of r2) Å2
<r2> 163.299
(<r2>)1/2 12.779