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

using model chemistry: B3LYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/cc-pVTZ
 hartrees
Energy at 0K-323.878770
Energy at 298.15K-323.888236
Nuclear repulsion energy249.955346
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 B3LYP/cc-pVTZ
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 3587 3468 8.08      
2 A 3503 3386 2.70      
3 A 3469 3353 256.20      
4 A 3128 3024 6.83      
5 A 3092 2989 27.57      
6 A 3038 2937 18.75      
7 A 3029 2928 8.12      
8 A 1842 1781 299.76      
9 A 1659 1603 30.47      
10 A 1502 1452 10.18      
11 A 1492 1442 3.25      
12 A 1420 1372 392.40      
13 A 1411 1363 8.65      
14 A 1392 1345 6.88      
15 A 1317 1273 8.40      
16 A 1233 1192 9.29      
17 A 1214 1173 19.04      
18 A 1143 1105 10.86      
19 A 1080 1044 44.34      
20 A 1020 986 0.69      
21 A 938 907 41.31      
22 A 881 851 64.73      
23 A 849 821 100.00      
24 A 803 776 6.91      
25 A 739 714 8.35      
26 A 567 548 3.79      
27 A 529 512 1.11      
28 A 406 393 4.22      
29 A 356 344 12.12      
30 A 283 274 12.42      
31 A 276 267 15.81      
32 A 229 221 0.27      
33 A 66 63 0.91      

Unscaled Zero Point Vibrational Energy (zpe) 23744.6 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 22951.6 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 B3LYP/cc-pVTZ
ABC
0.16255 0.11433 0.07186

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.111 1.326 0.001
C2 1.439 -1.173 -0.232
C3 0.643 -0.020 0.374
C4 -0.862 -0.150 0.055
O5 -1.464 1.019 -0.196
O6 -1.447 -1.199 0.066
H7 1.522 1.323 -0.926
H8 1.813 1.671 0.641
H9 0.993 -2.126 0.042
H10 1.440 -1.107 -1.323
H11 0.696 -0.088 1.464
H12 2.472 -1.150 0.115
H13 -0.746 1.689 -0.160

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.53091.47392.46472.60143.59511.01341.01073.45482.78872.07712.82721.8995
C22.53091.52612.53403.63792.90102.59182.99811.08771.09222.14561.09023.6009
C31.47391.52611.54332.41792.41872.06602.07392.16062.16651.09322.16512.2662
C42.46472.53401.54331.33921.20132.96923.28832.71062.84802.10123.48081.8547
O52.60143.63792.41791.33922.23383.08943.44493.99893.77132.94134.50500.9822
O63.59512.90102.41871.20132.23384.02004.38102.61043.20452.78943.91942.9799
H71.01342.59182.06602.96923.08944.02001.63123.62162.46342.89572.84602.4218
H81.01072.99812.07393.28833.44494.38101.63123.93073.42192.24032.94372.6821
H93.45481.08772.16062.71063.99892.61043.62163.93071.76072.50281.77384.1977
H102.78871.09222.16652.84803.77133.20452.46343.42191.76073.05831.77013.7339
H112.07712.14561.09322.10122.94132.78942.89572.24032.50283.05832.46952.8066
H122.82721.09022.16513.48084.50503.91942.84602.94371.77381.77012.46954.2997
H131.89953.60092.26621.85470.98222.97992.42182.68214.19773.73392.80664.2997

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.044 N1 C3 C4 109.527
N1 C3 H11 107.091 C2 C3 C4 111.288
C2 C3 H11 108.879 C3 N1 H7 110.973
C3 N1 H8 111.818 C3 C2 H9 110.383
C3 C2 H10 110.575 C3 C2 H12 110.589
C3 C4 O5 113.842 C3 C4 O6 123.110
C4 C3 H11 104.380 C4 O5 H13 105.014
O5 C4 O6 123.021 H7 N1 H8 107.389
H9 C2 H10 107.747 H9 C2 H12 109.068
H10 C2 H12 108.403
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.336      
2 C -0.280      
3 C -0.054      
4 C 0.294      
5 O -0.241      
6 O -0.300      
7 H 0.143      
8 H 0.148      
9 H 0.120      
10 H 0.090      
11 H 0.114      
12 H 0.092      
13 H 0.211      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.869 2.088 0.314 5.307
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.540 -0.337 -0.177
y -0.337 -37.681 0.140
z -0.177 0.140 -33.865
Traceless
 xyz
x -3.767 -0.337 -0.177
y -0.337 -0.978 0.140
z -0.177 0.140 4.745
Polar
3z2-r29.490
x2-y2-1.859
xy-0.337
xz-0.177
yz0.140


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.979 0.164 0.068
y 0.164 8.262 -0.078
z 0.068 -0.078 6.005


<r2> (average value of r2) Å2
<r2> 163.247
(<r2>)1/2 12.777