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

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G*
 hartrees
Energy at 0K-323.381316
Energy at 298.15K-323.390870
HF Energy-323.381316
Nuclear repulsion energy250.696587
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 PBE1PBE/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 3628 3448 7.94      
2 A 3531 3356 0.77      
3 A 3412 3242 283.99      
4 A 3189 3030 4.92      
5 A 3152 2996 23.96      
6 A 3081 2928 18.00      
7 A 3075 2922 8.19      
8 A 1911 1816 285.71      
9 A 1701 1617 40.57      
10 A 1525 1449 22.42      
11 A 1516 1441 3.99      
12 A 1485 1411 439.72      
13 A 1430 1359 13.90      
14 A 1411 1341 3.46      
15 A 1338 1272 10.47      
16 A 1273 1210 12.72      
17 A 1242 1180 7.61      
18 A 1177 1119 9.05      
19 A 1122 1067 45.32      
20 A 1032 980 1.32      
21 A 959 911 62.21      
22 A 924 878 61.77      
23 A 893 849 115.41      
24 A 821 780 8.17      
25 A 745 708 8.49      
26 A 573 544 4.93      
27 A 539 512 0.99      
28 A 413 392 5.74      
29 A 372 354 18.26      
30 A 312 296 17.10      
31 A 277 263 13.29      
32 A 227 216 0.33      
33 A 79 75 1.32      

Unscaled Zero Point Vibrational Energy (zpe) 24181.8 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 22979.9 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 PBE1PBE/6-31G*
ABC
0.16254 0.11643 0.07240

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.068 1.342 -0.031
C2 1.454 -1.153 -0.201
C3 0.644 -0.001 0.375
C4 -0.854 -0.160 0.053
O5 -1.474 1.000 -0.155
O6 -1.411 -1.229 0.027
H7 1.413 1.328 -0.988
H8 1.824 1.686 0.551
H9 1.016 -2.107 0.101
H10 1.449 -1.118 -1.297
H11 0.700 -0.035 1.472
H12 2.493 -1.110 0.142
H13 -0.752 1.675 -0.103

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.53031.46642.44082.56783.57161.01751.01463.45202.79292.07192.84191.8509
C22.53031.52132.52533.63492.87482.60272.96001.09251.09672.14821.09493.5875
C31.46641.52131.53992.40192.41812.05372.06682.15572.16601.09852.16912.2328
C42.44082.52531.53991.33221.20532.90503.29052.70002.83602.10753.48041.8447
O52.56783.63492.40191.33222.23763.02303.44173.99033.78612.90604.50360.9900
O63.57162.87482.41811.20532.23763.94234.38552.58183.15302.82203.90722.9807
H71.01752.60272.05372.90503.02303.94231.63343.62502.46552.90162.89612.3643
H81.01462.96002.06683.29053.44174.38551.63343.90413.37962.25262.90452.6572
H93.45201.09252.15572.70003.99032.58183.62503.90411.76632.50381.78214.1797
H102.79291.09672.16602.83603.78613.15302.46553.37961.76633.06581.77813.7507
H112.07192.14821.09852.10752.90602.82202.90162.25262.50383.06582.47782.7409
H122.84191.09492.16913.48044.50363.90722.89612.90451.78211.77812.47784.2832
H131.85093.58752.23281.84470.99002.98072.36432.65724.17973.75072.74094.2832

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.738 N1 C3 C4 108.536
N1 C3 H11 106.879 C2 C3 C4 111.160
C2 C3 H11 109.102 C3 N1 H7 110.234
C3 N1 H8 111.529 C3 C2 H9 110.043
C3 C2 H10 110.608 C3 C2 H12 110.961
C3 C4 O5 113.300 C3 C4 O6 123.025
C4 C3 H11 104.783 C4 O5 H13 104.224
O5 C4 O6 123.650 H7 N1 H8 106.992
H9 C2 H10 107.572 H9 C2 H12 109.117
H10 C2 H12 108.454
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.810      
2 C -0.527      
3 C -0.154      
4 C 0.632      
5 O -0.597      
6 O -0.470      
7 H 0.344      
8 H 0.348      
9 H 0.219      
10 H 0.178      
11 H 0.214      
12 H 0.172      
13 H 0.452      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.991 2.167 0.288 5.449
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.450 -0.019 -0.370
y -0.019 -36.991 -0.124
z -0.370 -0.124 -33.123
Traceless
 xyz
x -3.393 -0.019 -0.370
y -0.019 -1.204 -0.124
z -0.370 -0.124 4.598
Polar
3z2-r29.195
x2-y2-1.459
xy-0.019
xz-0.370
yz-0.124


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.726 0.288 0.111
y 0.288 7.181 -0.085
z 0.111 -0.085 5.088


<r2> (average value of r2) Å2
<r2> 160.796
(<r2>)1/2 12.681