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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-323.539636
Energy at 298.15K-323.548962
Nuclear repulsion energy245.470573
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 3512 3485 3.57      
2 A 3399 3373 0.02      
3 A 3077 3054 10.95      
4 A 3045 3022 34.30      
5 A 2982 2959 19.99      
6 A 2974 2951 14.17      
7 A 2900 2878 261.81      
8 A 1704 1691 230.36      
9 A 1659 1646 38.26      
10 A 1508 1497 9.02      
11 A 1498 1486 4.68      
12 A 1414 1403 14.00      
13 A 1378 1368 217.43      
14 A 1357 1347 125.07      
15 A 1293 1283 10.78      
16 A 1206 1197 4.57      
17 A 1151 1142 29.07      
18 A 1098 1089 21.36      
19 A 1038 1030 41.53      
20 A 1010 1002 9.42      
21 A 975 968 102.04      
22 A 909 902 37.71      
23 A 780 774 137.52      
24 A 754 748 13.43      
25 A 687 682 7.07      
26 A 549 545 2.56      
27 A 503 499 1.55      
28 A 396 393 4.46      
29 A 350 347 13.74      
30 A 315 313 12.46      
31 A 263 261 14.06      
32 A 233 231 0.41      
33 A 64 63 1.43      

Unscaled Zero Point Vibrational Energy (zpe) 22989.0 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 22814.3 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
0.15455 0.11209 0.06982

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 1.121 1.325 0.011
C2 1.447 -1.209 -0.252
C3 0.655 -0.051 0.395
C4 -0.870 -0.148 0.061
O5 -1.431 1.081 -0.219
O6 -1.511 -1.214 0.076
H7 1.555 1.358 -0.919
H8 1.723 1.778 0.703
H9 0.971 -2.169 -0.001
H10 1.449 -1.115 -1.352
H11 0.733 -0.126 1.495
H12 2.492 -1.221 0.102
H13 -0.628 1.724 -0.181

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.56851.50232.47742.57383.65761.02621.02333.49722.81352.11152.89241.8045
C22.56851.54502.56843.67862.97702.65493.14801.10041.10462.17621.10253.5938
C31.50231.54501.56472.45172.47972.12592.13962.17792.19381.10562.19672.2644
C42.47742.56841.56471.37991.24373.01833.29312.73522.88292.15063.52911.9025
O52.57383.67862.45171.37992.31543.07873.35874.04773.79443.01284.55931.0284
O63.65762.97702.47971.24372.31544.12374.44982.66153.28832.86924.00303.0777
H71.02622.65492.12593.01833.07874.12371.68433.69132.51272.95042.92772.3331
H81.02333.14802.13963.29313.35874.44981.68434.07893.55902.28683.15322.5126
H93.49721.10042.17792.73524.04772.66153.69134.07891.77962.54331.79464.2124
H102.81351.10462.19382.88293.79443.28832.51273.55901.77963.09801.79283.7069
H112.11152.17621.10562.15063.01282.86922.95042.28682.54333.09802.49642.8427
H122.89241.10252.19673.52914.55934.00302.92773.15321.79461.79282.49644.2991
H131.80453.59382.26441.90251.02843.07772.33312.51264.21243.70692.84274.2991

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 114.884 N1 C3 C4 107.740
N1 C3 H11 107.149 C2 C3 C4 111.360
C2 C3 H11 109.249 C3 N1 H7 113.092
C3 N1 H8 114.479 C3 C2 H9 109.679
C3 C2 H10 110.680 C3 C2 H12 111.034
C3 C4 O5 112.584 C3 C4 O6 123.593
C4 C3 H11 106.011 C4 O5 H13 103.401
O5 C4 O6 123.808 H7 N1 H8 110.531
H9 C2 H10 107.620 H9 C2 H12 109.107
H10 C2 H12 108.641
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 -0.687      
2 C -0.366      
3 C -0.061      
4 C 0.469      
5 O -0.508      
6 O -0.389      
7 H 0.292      
8 H 0.292      
9 H 0.169      
10 H 0.129      
11 H 0.162      
12 H 0.121      
13 H 0.377      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  5.774 2.109 0.459 6.164
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.339 0.638 -0.460
y 0.638 -36.886 0.465
z -0.460 0.465 -33.580
Traceless
 xyz
x -5.106 0.638 -0.460
y 0.638 0.073 0.465
z -0.460 0.465 5.033
Polar
3z2-r210.066
x2-y2-3.453
xy0.638
xz-0.460
yz0.465


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.940 0.420 0.136
y 0.420 7.621 -0.169
z 0.136 -0.169 5.031


<r2> (average value of r2) Å2
<r2> 167.904
(<r2>)1/2 12.958