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

using model chemistry: PBEPBE/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 PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-323.498782
Energy at 298.15K-323.508136
Nuclear repulsion energy249.046885
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 PBEPBE/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 3506 3482 7.29      
2 A 3418 3395 0.13      
3 A 3191 3169 319.61      
4 A 3068 3046 4.53      
5 A 3038 3017 23.78      
6 A 2975 2954 18.80      
7 A 2967 2947 6.29      
8 A 1788 1775 286.85      
9 A 1601 1590 28.95      
10 A 1448 1438 12.90      
11 A 1438 1428 4.00      
12 A 1401 1391 347.58      
13 A 1351 1342 11.30      
14 A 1337 1328 7.43      
15 A 1261 1252 3.08      
16 A 1194 1186 10.98      
17 A 1172 1164 20.40      
18 A 1109 1101 7.59      
19 A 1053 1046 39.55      
20 A 985 979 1.58      
21 A 923 917 59.48      
22 A 903 897 31.17      
23 A 832 826 91.57      
24 A 777 771 4.77      
25 A 713 708 4.93      
26 A 558 555 2.18      
27 A 511 507 0.76      
28 A 393 390 5.04      
29 A 351 349 14.16      
30 A 282 281 13.73      
31 A 265 264 13.23      
32 A 227 225 0.28      
33 A 68 67 1.03      

Unscaled Zero Point Vibrational Energy (zpe) 23051.3 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 22892.3 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 PBEPBE/cc-pVTZ
ABC
0.16072 0.11414 0.07161

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.119 1.317 0.011
C2 1.426 -1.191 -0.243
C3 0.645 -0.035 0.378
C4 -0.868 -0.141 0.056
O5 -1.434 1.051 -0.211
O6 -1.480 -1.187 0.077
H7 1.559 1.301 -0.911
H8 1.815 1.664 0.669
H9 0.949 -2.146 0.010
H10 1.437 -1.104 -1.340
H11 0.699 -0.114 1.476
H12 2.464 -1.202 0.116
H13 -0.657 1.681 -0.167

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.53961.47952.46462.57643.60941.02181.01913.46712.79062.09062.85751.8214
C22.53961.52692.54003.63432.92332.58403.02191.09651.10062.15501.09833.5492
C31.47951.52691.54962.41852.43532.07012.08352.16392.17271.10222.17692.2224
C42.46462.54001.54961.34681.21212.98433.29072.70572.86132.11433.49681.8485
O52.57643.63432.41851.34682.25693.08433.42173.99363.76322.95854.51421.0019
O63.60942.92332.43531.21212.25694.05024.39702.61233.24362.80313.94412.9943
H71.02182.58402.07012.98433.08434.05021.64153.61982.44642.90542.85302.3685
H81.01913.02192.08353.29073.42174.39701.64153.96183.44082.24842.98952.6096
H93.46711.09652.16392.70573.99362.61233.61983.96181.77312.51861.78814.1545
H102.79061.10062.17272.86133.76323.24362.44643.44081.77313.07491.78433.6770
H112.09062.15501.10222.11432.95852.80312.90542.24842.51863.07492.47992.7858
H122.85751.09832.17693.49684.51423.94412.85302.98951.78811.78432.47994.2584
H131.82143.54922.22241.84851.00192.99432.36852.60964.15453.67702.78584.2584

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.282 N1 C3 C4 108.880
N1 C3 H11 107.243 C2 C3 C4 111.301
C2 C3 H11 109.033 C3 N1 H7 110.366
C3 N1 H8 111.672 C3 C2 H9 110.063
C3 C2 H10 110.516 C3 C2 H12 110.991
C3 C4 O5 113.042 C3 C4 O6 123.257
C4 C3 H11 104.474 C4 O5 H13 102.824
O5 C4 O6 123.678 H7 N1 H8 107.084
H9 C2 H10 107.605 H9 C2 H12 109.111
H10 C2 H12 108.470
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.284      
2 C -0.273      
3 C -0.076      
4 C 0.247      
5 O -0.213      
6 O -0.272      
7 H 0.136      
8 H 0.139      
9 H 0.116      
10 H 0.090      
11 H 0.102      
12 H 0.091      
13 H 0.197      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.917 1.977 0.320 5.309
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.298 0.029 -0.145
y 0.029 -37.574 0.261
z -0.145 0.261 -33.966
Traceless
 xyz
x -3.528 0.029 -0.145
y 0.029 -0.942 0.261
z -0.145 0.261 4.470
Polar
3z2-r28.940
x2-y2-1.724
xy0.029
xz-0.145
yz0.261


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.419 0.159 0.081
y 0.159 8.618 -0.093
z 0.081 -0.093 6.198


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000