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

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-322.009609
Energy at 298.15K-322.019349
HF Energy-322.009609
Nuclear repulsion energy252.200897
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 HF/Def2TZVPP
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 4033 3656 198.77      
2 A 3820 3463 12.54      
3 A 3734 3385 5.65      
4 A 3272 2966 13.24      
5 A 3223 2921 42.95      
6 A 3180 2882 15.53      
7 A 3165 2869 20.45      
8 A 2014 1825 390.56      
9 A 1797 1629 36.94      
10 A 1618 1466 13.22      
11 A 1607 1457 2.45      
12 A 1542 1397 76.94      
13 A 1534 1390 175.71      
14 A 1508 1367 190.92      
15 A 1441 1306 78.18      
16 A 1335 1210 12.06      
17 A 1321 1197 4.34      
18 A 1248 1131 14.91      
19 A 1178 1068 58.56      
20 A 1098 995 0.85      
21 A 1011 916 35.02      
22 A 945 856 108.83      
23 A 881 798 5.26      
24 A 812 736 9.51      
25 A 788 714 123.18      
26 A 601 545 10.52      
27 A 571 517 2.11      
28 A 440 399 6.51      
29 A 380 344 9.93      
30 A 301 272 17.64      
31 A 286 260 14.35      
32 A 247 224 1.07      
33 A 62 56 1.42      

Unscaled Zero Point Vibrational Energy (zpe) 25494.2 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 23107.9 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 HF/Def2TZVPP
ABC
0.16692 0.11543 0.07258

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.077 1.356 -0.045
C2 1.474 -1.123 -0.189
C3 0.642 0.022 0.370
C4 -0.848 -0.167 0.063
O5 -1.541 0.935 -0.137
O6 -1.356 -1.229 0.011
H7 1.397 1.351 -0.991
H8 1.836 1.676 0.515
H9 1.078 -2.072 0.137
H10 1.460 -1.113 -1.273
H11 0.692 0.002 1.453
H12 2.502 -1.037 0.141
H13 -0.927 1.663 -0.128

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.51451.46262.45672.65343.55030.99910.99633.43272.78372.05522.79032.0294
C22.51451.52172.52393.65092.83882.60262.90911.07871.08452.13841.08303.6785
C31.46261.52171.53362.42052.38492.04702.04512.15182.15811.08432.15192.3245
C42.45672.52391.53361.31681.17892.90813.28742.71052.82982.08213.46191.8410
O52.65343.65092.42051.31682.17743.08833.51893.99743.80692.89624.50660.9522
O63.55032.83882.38491.17892.17743.90464.34582.57883.09752.79093.86472.9271
H70.99912.60262.04702.90813.08833.90461.60223.61902.48112.87972.86412.4993
H80.99632.90912.04513.28743.51894.34581.60223.84293.33432.23422.81792.8374
H93.43271.07872.15182.71053.99742.57883.61903.84291.74812.48651.76074.2476
H102.78371.08452.15812.82983.80693.09752.48113.33431.74813.04381.75783.8362
H112.05522.13841.08432.08212.89622.79092.87972.23422.48653.04382.46472.8072
H122.79031.08302.15193.46194.50663.86472.86412.81791.76071.75782.46474.3722
H132.02943.67852.32451.84100.95222.92712.49932.83744.24763.83622.80724.3722

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 114.810 N1 C3 C4 110.133
N1 C3 H11 106.655 C2 C3 C4 111.393
C2 C3 H11 109.129 C3 N1 H7 111.112
C3 N1 H8 111.121 C3 C2 H9 110.524
C3 C2 H10 110.681 C3 C2 H12 110.275
C3 C4 O5 116.038 C3 C4 O6 122.563
C4 C3 H11 104.050 C4 O5 H13 107.376
O5 C4 O6 121.398 H7 N1 H8 106.819
H9 C2 H10 107.824 H9 C2 H12 109.079
H10 C2 H12 108.386
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.455      
2 C -0.197      
3 C 0.164      
4 C 0.466      
5 O -0.355      
6 O -0.441      
7 H 0.158      
8 H 0.163      
9 H 0.093      
10 H 0.051      
11 H 0.047      
12 H 0.058      
13 H 0.247      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.798 2.465 0.319 5.403
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.697 -1.153 -0.326
y -1.153 -37.978 -0.247
z -0.326 -0.247 -33.547
Traceless
 xyz
x -3.935 -1.153 -0.326
y -1.153 -1.356 -0.247
z -0.326 -0.247 5.291
Polar
3z2-r210.581
x2-y2-1.719
xy-1.153
xz-0.326
yz-0.247


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.247 0.199 0.049
y 0.199 7.654 -0.022
z 0.049 -0.022 5.752


<r2> (average value of r2) Å2
<r2> 160.859
(<r2>)1/2 12.683