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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-323.364671
Energy at 298.15K-323.374064
HF Energy-323.364671
Nuclear repulsion energy248.428481
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 PBEPBEultrafine/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3490 3433 3.69      
2 A 3396 3340 0.22      
3 A 3120 3069 302.63      
4 A 3094 3043 1.19      
5 A 3061 3010 25.74      
6 A 2990 2940 25.67      
7 A 2984 2935 2.20      
8 A 1819 1789 254.72      
9 A 1644 1617 31.94      
10 A 1481 1456 15.27      
11 A 1471 1447 5.83      
12 A 1443 1419 373.50      
13 A 1379 1356 12.16      
14 A 1359 1336 7.25      
15 A 1284 1263 5.59      
16 A 1212 1192 11.81      
17 A 1190 1170 13.39      
18 A 1124 1106 7.04      
19 A 1076 1058 44.89      
20 A 998 982 3.39      
21 A 942 926 81.53      
22 A 914 899 45.66      
23 A 860 845 84.80      
24 A 780 767 5.79      
25 A 709 698 5.59      
26 A 555 546 3.40      
27 A 513 504 0.50      
28 A 402 395 5.74      
29 A 362 356 19.49      
30 A 307 302 17.24      
31 A 267 262 12.27      
32 A 225 222 0.33      
33 A 79 77 1.42      

Unscaled Zero Point Vibrational Energy (zpe) 23262.8 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 22878.9 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 PBEPBEultrafine/6-31G*
ABC
0.15929 0.11459 0.07118

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.054 1.366 -0.056
C2 1.487 -1.148 -0.175
C3 0.647 0.014 0.373
C4 -0.858 -0.176 0.055
O5 -1.499 0.994 -0.120
O6 -1.404 -1.260 -0.006
H7 1.325 1.360 -1.044
H8 1.859 1.702 0.477
H9 1.102 -2.112 0.190
H10 1.447 -1.169 -1.278
H11 0.706 0.008 1.477
H12 2.540 -1.043 0.133
H13 -0.790 1.682 -0.071

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.55481.47562.45882.58103.59711.02501.02273.48752.84192.07802.83721.8705
C22.55481.53512.54883.67562.89802.65952.94821.09991.10362.16291.10273.6338
C31.47561.53511.54992.41052.44412.06822.08102.18192.18241.10662.18112.2456
C42.45882.54881.54991.34571.21492.88683.33022.75822.84162.12173.50761.8633
O52.58103.67562.41051.34572.25812.99453.48434.06333.83382.89624.53090.9894
O63.59712.89802.44411.21492.25813.92274.43362.65453.12292.87403.95263.0053
H71.02502.65952.06822.88682.99453.92271.64813.69142.54252.92752.93852.3506
H81.02272.94822.08103.33023.48434.43361.64813.89943.39032.28112.84902.7055
H93.48751.09992.18192.75824.06332.65453.69143.89941.77852.51151.79284.2474
H102.84191.10362.18242.84163.83383.12292.54253.39031.77853.08631.78983.8192
H112.07802.16291.10662.12172.89622.87402.92752.28112.51153.08632.50482.7271
H122.83721.10272.18113.50764.53093.95262.93852.84901.79281.78982.50484.3074
H131.87053.63382.24561.86330.98943.00532.35062.70554.24743.81922.72714.3074

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 116.097 N1 C3 C4 108.696
N1 C3 H11 106.293 C2 C3 C4 111.416
C2 C3 H11 108.839 C3 N1 H7 110.299
C3 N1 H8 111.521 C3 C2 H9 110.710
C3 C2 H10 110.531 C3 C2 H12 110.479
C3 C4 O5 112.519 C3 C4 O6 123.812
C4 C3 H11 104.782 C4 O5 H13 104.836
O5 C4 O6 123.658 H7 N1 H8 107.196
H9 C2 H10 107.636 H9 C2 H12 108.970
H10 C2 H12 108.433
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.749      
2 C -0.490      
3 C -0.129      
4 C 0.565      
5 O -0.546      
6 O -0.437      
7 H 0.325      
8 H 0.327      
9 H 0.202      
10 H 0.164      
11 H 0.193      
12 H 0.156      
13 H 0.419      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.946 2.052 0.266 5.361
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.297 0.235 -0.350
y 0.235 -36.970 -0.069
z -0.350 -0.069 -33.327
Traceless
 xyz
x -3.148 0.235 -0.350
y 0.235 -1.158 -0.069
z -0.350 -0.069 4.306
Polar
3z2-r28.613
x2-y2-1.327
xy0.235
xz-0.350
yz-0.069


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.177 0.285 0.131
y 0.285 7.551 -0.101
z 0.131 -0.101 5.239


<r2> (average value of r2) Å2
<r2> 163.149
(<r2>)1/2 12.773