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

using model chemistry: B3LYP/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 B3LYP/6-311G*
 hartrees
Energy at 0K-323.828160
Energy at 298.15K-323.837679
Nuclear repulsion energy249.715460
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/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 3587 3467 3.11      
2 A 3503 3385 0.78      
3 A 3450 3334 204.84      
4 A 3134 3028 10.82      
5 A 3096 2992 36.72      
6 A 3041 2938 25.11      
7 A 3034 2932 8.51      
8 A 1857 1794 290.89      
9 A 1710 1653 42.29      
10 A 1517 1466 12.22      
11 A 1507 1456 5.08      
12 A 1448 1399 431.91      
13 A 1421 1374 8.41      
14 A 1405 1357 4.24      
15 A 1326 1281 9.22      
16 A 1238 1197 4.87      
17 A 1217 1176 20.60      
18 A 1151 1112 12.12      
19 A 1093 1056 54.67      
20 A 1025 990 1.23      
21 A 946 914 67.00      
22 A 898 868 72.13      
23 A 868 839 105.18      
24 A 804 777 10.32      
25 A 740 715 9.45      
26 A 562 543 5.67      
27 A 532 514 0.84      
28 A 410 396 5.06      
29 A 370 358 15.46      
30 A 310 299 13.86      
31 A 277 268 12.31      
32 A 227 219 0.33      
33 A 74 72 1.19      

Unscaled Zero Point Vibrational Energy (zpe) 23888.0 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 23083.0 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/6-311G*
ABC
0.16164 0.11493 0.07159

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.067 1.357 -0.036
C2 1.476 -1.146 -0.197
C3 0.646 0.003 0.373
C4 -0.858 -0.172 0.053
O5 -1.497 0.989 -0.150
O6 -1.405 -1.241 0.023
H7 1.412 1.353 -0.991
H8 1.810 1.713 0.552
H9 1.066 -2.106 0.119
H10 1.465 -1.129 -1.291
H11 0.702 -0.026 1.468
H12 2.514 -1.079 0.138
H13 -0.805 1.685 -0.102

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.54181.47612.45942.59253.58591.01571.01283.46602.81342.07552.83861.9018
C22.54181.52792.54183.66052.89072.62342.97481.09001.09462.15051.09303.6377
C31.47611.52791.54722.41602.42342.06692.07692.16462.17311.09642.17152.2722
C42.45942.54181.54721.34001.20122.92713.30442.72872.84992.11063.49311.8639
O52.59253.66052.41601.34002.23783.04993.45764.02673.81592.91244.52170.9828
O63.58592.89072.42341.20122.23783.96094.39772.61943.15832.82853.92412.9892
H71.01572.62342.06692.92713.04993.96091.63443.64892.50082.90742.89872.4123
H81.01282.97482.07693.30443.45764.39771.63443.91453.40542.25632.90872.6962
H93.46601.09002.16462.72874.02672.61943.64893.91451.76122.50491.77584.2333
H102.81341.09462.17312.84993.81593.15832.50083.40541.76123.06761.77373.8068
H112.07552.15051.09642.11062.91242.82852.90742.25632.50493.06762.48202.7684
H122.83861.09302.17153.49314.52173.92412.89872.90871.77581.77372.48204.3263
H131.90183.63772.27221.86390.98282.98922.41232.69624.23333.80682.76844.3263

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.574 N1 C3 C4 108.851
N1 C3 H11 106.635 C2 C3 C4 111.497
C2 C3 H11 108.951 C3 N1 H7 110.732
C3 N1 H8 111.766 C3 C2 H9 110.435
C3 C2 H10 110.832 C3 C2 H12 110.807
C3 C4 O5 113.419 C3 C4 O6 123.217
C4 C3 H11 104.661 C4 O5 H13 105.704
O5 C4 O6 123.341 H7 N1 H8 107.359
H9 C2 H10 107.451 H9 C2 H12 108.871
H10 C2 H12 108.345
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.796      
2 C -0.608      
3 C -0.219      
4 C 0.470      
5 O -0.492      
6 O -0.331      
7 H 0.334      
8 H 0.341      
9 H 0.242      
10 H 0.207      
11 H 0.241      
12 H 0.203      
13 H 0.408      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.931 2.224 0.333 5.420
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.625 -0.038 -0.345
y -0.038 -37.742 -0.135
z -0.345 -0.135 -33.755
Traceless
 xyz
x -3.876 -0.038 -0.345
y -0.038 -1.052 -0.135
z -0.345 -0.135 4.929
Polar
3z2-r29.858
x2-y2-1.883
xy-0.038
xz-0.345
yz-0.135


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.193 0.170 0.083
y 0.170 7.704 -0.050
z 0.083 -0.050 5.468


<r2> (average value of r2) Å2
<r2> 163.486
(<r2>)1/2 12.786