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

using model chemistry: BLYP/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 BLYP/6-31G*
 hartrees
Energy at 0K-323.632046
Energy at 298.15K-323.641363
HF Energy-323.632046
Nuclear repulsion energy246.980558
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 BLYP/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 3443 3415 1.12      
2 A 3355 3327 0.75      
3 A 3170 3144 245.41      
4 A 3070 3046 8.01      
5 A 3033 3009 33.20      
6 A 2974 2950 28.53      
7 A 2966 2942 5.00      
8 A 1790 1775 239.90      
9 A 1650 1636 24.68      
10 A 1491 1479 8.55      
11 A 1482 1470 3.69      
12 A 1421 1410 363.11      
13 A 1392 1381 3.40      
14 A 1364 1353 11.01      
15 A 1293 1282 7.44      
16 A 1200 1190 3.22      
17 A 1176 1167 22.61      
18 A 1108 1099 12.08      
19 A 1055 1047 48.83      
20 A 999 991 1.84      
21 A 934 926 78.36      
22 A 890 882 65.64      
23 A 841 834 68.78      
24 A 767 761 6.51      
25 A 701 696 6.94      
26 A 543 538 4.21      
27 A 507 503 0.49      
28 A 398 395 5.27      
29 A 354 352 17.91      
30 A 300 297 17.37      
31 A 267 265 12.74      
32 A 217 215 0.30      
33 A 76 76 1.29      

Unscaled Zero Point Vibrational Energy (zpe) 23112.5 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 22925.3 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 BLYP/6-31G*
ABC
0.15787 0.11275 0.07015

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.066 1.380 -0.060
C2 1.505 -1.148 -0.171
C3 0.652 0.020 0.372
C4 -0.863 -0.180 0.052
O5 -1.531 0.984 -0.115
O6 -1.400 -1.271 -0.010
H7 1.341 1.377 -1.049
H8 1.870 1.718 0.475
H9 1.127 -2.112 0.198
H10 1.470 -1.176 -1.273
H11 0.710 0.017 1.476
H12 2.556 -1.035 0.140
H13 -0.846 1.697 -0.066

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.56791.48582.48352.62703.62061.02581.02353.50192.85722.08432.84461.9386
C22.56791.54472.56803.70982.91192.67842.96071.09891.10312.16801.10223.6926
C31.48581.54471.56112.43482.45372.08192.09292.19132.19201.10572.18942.2912
C42.48352.56801.56111.35241.21712.91463.35472.77792.86272.13073.52581.8813
O52.62703.70982.43481.35242.26123.04483.52864.09273.87472.91304.56550.9894
O63.62062.91192.45371.21712.26123.94984.45692.67193.13762.88413.96613.0199
H71.02582.67842.08192.91463.04483.94981.64833.71122.56572.93622.95112.4191
H81.02352.96072.09293.35473.52864.45691.64833.91163.40412.29002.85712.7699
H93.50191.09892.19132.77794.09272.67193.71123.91161.77692.51811.79024.2986
H102.85721.10312.19202.86273.87473.13762.56573.40411.77693.09141.78753.8833
H112.08432.16801.10572.13072.91302.88412.93622.29002.51813.09142.50982.7611
H122.84461.10222.18943.52584.56553.96612.95112.85711.79021.78752.50984.3688
H131.93863.69262.29121.88130.98943.01992.41912.76994.29863.88332.76114.3688

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.835 N1 C3 C4 109.171
N1 C3 H11 106.152 C2 C3 C4 111.552
C2 C3 H11 108.635 C3 N1 H7 110.643
C3 N1 H8 111.711 C3 C2 H9 110.850
C3 C2 H10 110.653 C3 C2 H12 110.504
C3 C4 O5 113.189 C3 C4 O6 123.590
C4 C3 H11 104.776 C4 O5 H13 105.865
O5 C4 O6 123.201 H7 N1 H8 107.094
H9 C2 H10 107.602 H9 C2 H12 108.840
H10 C2 H12 108.298
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.712      
2 C -0.410      
3 C -0.061      
4 C 0.559      
5 O -0.540      
6 O -0.439      
7 H 0.302      
8 H 0.304      
9 H 0.173      
10 H 0.136      
11 H 0.157      
12 H 0.127      
13 H 0.403      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.825 2.049 0.254 5.248
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.503 0.028 -0.389
y 0.028 -37.216 -0.161
z -0.389 -0.161 -33.476
Traceless
 xyz
x -3.157 0.028 -0.389
y 0.028 -1.227 -0.161
z -0.389 -0.161 4.383
Polar
3z2-r28.767
x2-y2-1.287
xy0.028
xz-0.389
yz-0.161


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.216 0.296 0.141
y 0.296 7.609 -0.099
z 0.141 -0.099 5.249


<r2> (average value of r2) Å2
<r2> 165.207
(<r2>)1/2 12.853