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

using model chemistry: PBEPBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-323.449628
Energy at 298.15K-323.459052
Nuclear repulsion energy248.819975
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 PBEPBE/6-311G*
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 3506 3469 2.91      
2 A 3417 3381 0.22      
3 A 3166 3133 251.49      
4 A 3073 3041 7.19      
5 A 3041 3010 31.79      
6 A 2976 2945 26.43      
7 A 2970 2939 5.30      
8 A 1803 1784 276.01      
9 A 1659 1641 40.40      
10 A 1467 1452 15.35      
11 A 1457 1441 6.65      
12 A 1428 1413 378.37      
13 A 1366 1352 18.17      
14 A 1354 1340 4.41      
15 A 1274 1261 4.67      
16 A 1201 1188 5.48      
17 A 1179 1166 21.47      
18 A 1119 1107 8.38      
19 A 1069 1058 49.06      
20 A 994 984 3.45      
21 A 939 929 84.49      
22 A 909 899 46.67      
23 A 852 843 88.80      
24 A 779 771 6.34      
25 A 715 708 6.03      
26 A 553 548 3.68      
27 A 514 509 0.58      
28 A 399 395 5.72      
29 A 366 362 17.68      
30 A 316 313 13.22      
31 A 267 264 11.06      
32 A 222 220 0.35      
33 A 78 78 1.21      

Unscaled Zero Point Vibrational Energy (zpe) 23212.9 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 22971.5 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 PBEPBE/6-311G*
ABC
0.15994 0.11471 0.07129

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.074 1.350 -0.027
C2 1.466 -1.163 -0.205
C3 0.649 -0.010 0.376
C4 -0.863 -0.164 0.054
O5 -1.473 1.017 -0.162
O6 -1.434 -1.233 0.032
H7 1.437 1.337 -0.985
H8 1.819 1.706 0.573
H9 1.027 -2.125 0.092
H10 1.463 -1.128 -1.307
H11 0.706 -0.046 1.479
H12 2.510 -1.125 0.141
H13 -0.727 1.685 -0.106

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.54921.48082.46002.57203.60071.02381.02073.47702.81542.08642.86581.8339
C22.54921.52782.54753.65952.91062.61932.99361.09831.10272.15881.10073.5957
C31.48081.52781.55352.41792.43972.07092.08662.16712.17821.10512.18212.2358
C42.46002.54751.55351.34711.21192.93683.31072.72412.86232.12283.50851.8609
O52.57203.65952.41791.34712.25913.04073.44224.02373.81212.92764.53251.0021
O63.60072.91062.43971.21192.25913.98544.41742.61893.19332.84293.94723.0053
H71.02382.61932.07092.93683.04073.98541.64543.64912.48632.91872.91222.3612
H81.02072.99362.08663.31073.44224.41741.64543.94153.41932.26522.94582.6351
H93.47701.09832.16712.72414.02372.61893.64913.94151.77272.51941.78934.1990
H102.81541.10272.17822.86233.81213.19332.48633.41931.77273.08301.78723.7614
H112.08642.15881.10512.12282.92762.84292.91872.26522.51943.08302.49152.7502
H122.86581.10072.18213.50854.53253.94722.91222.94581.78931.78722.49154.2935
H131.83393.59572.23581.86091.00213.00532.36122.63514.19903.76142.75024.2935

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.830 N1 C3 C4 108.314
N1 C3 H11 106.677 C2 C3 C4 111.532
C2 C3 H11 109.100 C3 N1 H7 110.210
C3 N1 H8 111.730 C3 C2 H9 110.147
C3 C2 H10 110.762 C3 C2 H12 111.194
C3 C4 O5 112.746 C3 C4 O6 123.351
C4 C3 H11 104.702 C4 O5 H13 103.802
O5 C4 O6 123.882 H7 N1 H8 107.180
H9 C2 H10 107.301 H9 C2 H12 108.917
H10 C2 H12 108.412
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.782      
2 C -0.632      
3 C -0.260      
4 C 0.431      
5 O -0.453      
6 O -0.305      
7 H 0.337      
8 H 0.344      
9 H 0.249      
10 H 0.216      
11 H 0.252      
12 H 0.212      
13 H 0.392      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.959 2.126 0.319 5.405
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.364 0.312 -0.313
y 0.312 -37.618 -0.055
z -0.313 -0.055 -33.853
Traceless
 xyz
x -3.628 0.312 -0.313
y 0.312 -1.010 -0.055
z -0.313 -0.055 4.638
Polar
3z2-r29.276
x2-y2-1.746
xy0.312
xz-0.313
yz-0.055


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.607 0.154 0.092
y 0.154 8.042 -0.061
z 0.092 -0.061 5.632


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000