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

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-323.721959
Energy at 298.15K-323.731417
Nuclear repulsion energy250.514569
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 mPW1PW91/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3638 3487 12.70      
2 A 3544 3397 0.43      
3 A 3452 3308 313.33      
4 A 3176 3044 5.64      
5 A 3142 3011 24.04      
6 A 3079 2950 10.31      
7 A 3060 2932 15.10      
8 A 1862 1784 337.14      
9 A 1649 1581 33.69      
10 A 1479 1417 26.92      
11 A 1471 1409 2.91      
12 A 1443 1383 377.82      
13 A 1394 1336 14.73      
14 A 1379 1322 3.45      
15 A 1306 1252 8.12      
16 A 1248 1196 20.54      
17 A 1222 1171 7.46      
18 A 1165 1116 10.09      
19 A 1095 1049 36.18      
20 A 1016 973 0.53      
21 A 941 902 26.77      
22 A 912 874 61.18      
23 A 864 828 108.77      
24 A 815 781 5.22      
25 A 742 711 7.20      
26 A 576 552 2.97      
27 A 534 512 1.76      
28 A 405 388 4.29      
29 A 354 339 11.97      
30 A 280 268 13.06      
31 A 269 257 16.59      
32 A 223 214 0.22      
33 A 58 56 0.96      

Unscaled Zero Point Vibrational Energy (zpe) 23895.5 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 22899.0 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 mPW1PW91/aug-cc-pVDZ
ABC
0.16298 0.11516 0.07250

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.117 1.308 0.015
C2 1.418 -1.183 -0.247
C3 0.640 -0.033 0.376
C4 -0.860 -0.138 0.057
O5 -1.432 1.036 -0.218
O6 -1.468 -1.178 0.084
H7 1.576 1.300 -0.890
H8 1.783 1.668 0.687
H9 0.958 -2.139 0.021
H10 1.411 -1.103 -1.343
H11 0.692 -0.118 1.471
H12 2.459 -1.176 0.097
H13 -0.687 1.680 -0.186

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.52271.46762.44892.57343.58641.01521.01273.45072.78232.08182.82411.8524
C22.52271.52212.52443.61172.90422.56993.02221.09431.09852.14861.09663.5538
C31.46761.52211.53722.40572.41672.06292.07202.15992.16661.09982.16612.2380
C42.44892.52441.53721.33411.20522.98323.26182.70412.83692.09943.47741.8416
O52.57343.61172.40571.33412.23463.09393.39893.98113.73122.94834.48630.9851
O63.58642.90422.41671.20522.23464.04424.36212.60983.21362.77713.92652.9747
H71.01522.56992.06292.98323.09394.04421.63283.61132.45072.89302.80742.4009
H81.01273.02222.07203.26183.39894.36211.63283.95183.45472.23442.98162.6195
H93.45071.09432.15992.70413.98112.60983.61133.95181.77192.50231.78524.1633
H102.78231.09852.16662.83693.73123.21362.45073.45471.77193.06731.78203.6720
H112.08182.14861.09982.09942.94832.77712.89302.23442.50233.06732.47642.8065
H122.82411.09662.16613.47744.48633.92652.80742.98161.78521.78202.47644.2579
H131.85243.55382.23801.84160.98512.97472.40092.61954.16333.67202.80654.2579

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.075 N1 C3 C4 109.154
N1 C3 H11 107.490 C2 C3 C4 111.209
C2 C3 H11 108.999 C3 N1 H7 111.066
C3 N1 H8 112.004 C3 C2 H9 110.212
C3 C2 H10 110.492 C3 C2 H12 110.570
C3 C4 O5 113.643 C3 C4 O6 123.130
C4 C3 H11 104.297 C4 O5 H13 104.123
O5 C4 O6 123.205 H7 N1 H8 107.254
H9 C2 H10 107.813 H9 C2 H12 109.143
H10 C2 H12 108.544
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.347      
2 C 0.712      
3 C -0.111      
4 C 0.848      
5 O -0.480      
6 O -0.589      
7 H 0.062      
8 H 0.049      
9 H -0.115      
10 H -0.074      
11 H -0.083      
12 H -0.108      
13 H 0.236      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  5.117 2.025 0.359 5.515
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.764 -0.321 -0.142
y -0.321 -37.773 0.373
z -0.142 0.373 -33.866
Traceless
 xyz
x -3.945 -0.321 -0.142
y -0.321 -0.958 0.373
z -0.142 0.373 4.902
Polar
3z2-r29.805
x2-y2-1.991
xy-0.321
xz-0.142
yz0.373


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.657 0.188 0.061
y 0.188 8.855 -0.087
z 0.061 -0.087 6.503


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