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

using model chemistry: B3LYP/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-323.700179
Energy at 298.15K-323.709489
Nuclear repulsion energy247.001751
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/LANL2DZ
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 3660 3518 12.74      
2 A 3544 3406 3.09      
3 A 3203 3078 302.57      
4 A 3168 3045 6.33      
5 A 3137 3016 38.51      
6 A 3084 2965 11.87      
7 A 3049 2930 21.24      
8 A 1750 1682 276.13      
9 A 1687 1622 69.08      
10 A 1527 1467 11.95      
11 A 1515 1456 8.83      
12 A 1438 1382 16.62      
13 A 1385 1331 127.83      
14 A 1361 1308 265.53      
15 A 1317 1266 12.79      
16 A 1263 1214 13.93      
17 A 1194 1148 31.52      
18 A 1137 1093 16.74      
19 A 1063 1022 45.70      
20 A 1016 977 1.33      
21 A 972 934 133.49      
22 A 943 906 49.51      
23 A 812 780 137.23      
24 A 782 752 32.04      
25 A 709 682 13.43      
26 A 596 573 2.74      
27 A 513 493 1.47      
28 A 389 374 0.71      
29 A 342 329 16.30      
30 A 295 284 6.26      
31 A 262 252 13.21      
32 A 239 230 0.71      
33 A 28 27 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 23689.3 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 22770.2 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/LANL2DZ
ABC
0.15811 0.10977 0.07252

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.243 -1.197 0.156
C2 -1.310 1.266 -0.389
C3 -0.637 0.138 0.419
C4 0.880 0.075 0.077
O5 1.261 -1.145 -0.418
O6 1.652 1.028 0.235
H7 -1.973 -1.189 -0.553
H8 -1.533 -1.706 0.987
H9 -0.768 2.204 -0.239
H10 -1.299 1.039 -1.463
H11 -0.702 0.383 1.487
H12 -2.350 1.404 -0.068
H13 0.417 -1.699 -0.422

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.52321.48912.47572.56923.65171.01761.01713.45652.76082.13502.83551.8278
C22.52321.54252.53683.52513.03692.54903.28281.09401.09842.16031.09683.4318
C31.48911.54251.55612.43852.46272.11952.12752.17252.18931.09762.18542.2782
C42.47572.53681.55611.37001.23673.18403.13402.71112.83772.14163.49611.8996
O52.56923.52512.43851.37002.30183.23783.17713.91973.52393.13304.43391.0097
O63.65173.03692.46271.23672.30184.32234.26442.73213.40512.74374.03133.0645
H71.01762.54902.11953.18403.23784.32231.68233.61532.50012.87162.66532.4478
H81.01713.28282.12753.13403.17714.26441.68234.16883.68692.30303.38432.4054
H93.45651.09402.17252.71113.91972.73213.61534.16881.77192.50971.78144.0831
H102.76081.09842.18932.83773.52393.40512.50013.68691.77193.08031.78473.3951
H112.13502.16031.09762.14163.13302.74372.87162.30302.50973.08032.48473.0379
H122.83551.09682.18543.49614.43394.03132.66533.38431.78141.78472.48474.1727
H131.82783.43182.27821.89961.00973.06452.44782.40544.08313.39513.03794.1727

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 112.664 N1 C3 C4 108.759
N1 C3 H11 110.343 C2 C3 C4 109.909
C2 C3 H11 108.648 C3 N1 H7 114.143
C3 N1 H8 114.878 C3 C2 H9 109.804
C3 C2 H10 110.874 C3 C2 H12 110.660
C3 C4 O5 112.734 C3 C4 O6 123.318
C4 C3 H11 106.325 C4 O5 H13 104.922
O5 C4 O6 123.948 H7 N1 H8 111.545
H9 C2 H10 107.842 H9 C2 H12 108.809
H10 C2 H12 108.780
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.699      
2 C -0.653      
3 C -0.142      
4 C 0.246      
5 O -0.415      
6 O -0.271      
7 H 0.309      
8 H 0.306      
9 H 0.255      
10 H 0.205      
11 H 0.235      
12 H 0.208      
13 H 0.414      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -6.420 -1.702 0.720 6.681
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.437 0.450 0.172
y 0.450 -36.351 -2.007
z 0.172 -2.007 -33.964
Traceless
 xyz
x -6.279 0.450 0.172
y 0.450 1.349 -2.007
z 0.172 -2.007 4.930
Polar
3z2-r29.861
x2-y2-5.086
xy0.450
xz0.172
yz-2.007


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.888 0.493 0.033
y 0.493 7.210 0.286
z 0.033 0.286 5.145


<r2> (average value of r2) Å2
<r2> 166.708
(<r2>)1/2 12.912