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

using model chemistry: PBEPBE/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 PBEPBE/aug-cc-pVDZ
 hartrees
Energy at 0K-323.427665
Energy at 298.15K-323.436922
Nuclear repulsion energy248.301671
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/aug-cc-pVDZ
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 3509 3487 9.87      
2 A 3415 3395 0.17      
3 A 3150 3131 355.91      
4 A 3083 3064 3.34      
5 A 3053 3034 22.93      
6 A 2988 2970 10.92      
7 A 2972 2954 14.18      
8 A 1771 1760 317.21      
9 A 1587 1578 28.92      
10 A 1424 1415 21.25      
11 A 1416 1407 2.69      
12 A 1396 1388 324.22      
13 A 1335 1327 15.65      
14 A 1321 1313 4.96      
15 A 1246 1238 2.78      
16 A 1192 1185 17.88      
17 A 1166 1159 19.65      
18 A 1109 1103 8.09      
19 A 1045 1039 35.06      
20 A 979 973 1.91      
21 A 930 924 58.48      
22 A 902 897 24.20      
23 A 830 825 90.50      
24 A 776 772 4.02      
25 A 706 702 4.96      
26 A 562 558 1.65      
27 A 508 505 1.18      
28 A 392 389 4.43      
29 A 345 342 13.63      
30 A 267 266 12.19      
31 A 257 255 14.72      
32 A 217 216 0.23      
33 A 48 48 1.03      

Unscaled Zero Point Vibrational Energy (zpe) 22948.8 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 22808.8 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/aug-cc-pVDZ
ABC
0.15994 0.11311 0.07150

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.140 1.299 0.036
C2 1.409 -1.209 -0.271
C3 0.644 -0.054 0.383
C4 -0.870 -0.128 0.060
O5 -1.408 1.072 -0.250
O6 -1.516 -1.162 0.108
H7 1.654 1.283 -0.851
H8 1.780 1.666 0.745
H9 0.925 -2.170 -0.027
H10 1.406 -1.099 -1.373
H11 0.701 -0.160 1.485
H12 2.457 -1.232 0.079
H13 -0.612 1.686 -0.212

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.54071.48292.46602.57433.62191.02541.02293.47642.79402.10302.85361.8112
C22.54071.53092.54373.62392.94922.56993.07091.10331.10742.16411.10523.5303
C31.48291.53091.55052.42492.44302.08112.09272.17312.18031.10882.18302.2272
C42.46602.54371.55051.35081.21973.03193.27302.72012.85932.12203.50571.8527
O52.57433.62392.42491.35082.26493.12723.39193.99993.72692.99604.51131.0064
O63.62192.94922.44301.21972.26494.11634.38912.64413.27602.79573.97343.0053
H71.02542.56992.08113.03193.12724.11631.64683.62382.45082.90682.79922.3880
H81.02293.07092.09273.27303.39194.38911.64684.00483.50262.24593.04942.5762
H93.47641.10332.17312.72013.99992.64413.62384.00481.78552.52531.79934.1549
H102.79401.10742.18032.85933.72693.27602.45083.50261.78553.08961.79693.6295
H112.10302.16411.10882.12202.99602.79572.90682.24592.52533.08962.49212.8306
H122.85361.10522.18303.50574.51133.97342.79923.04941.79931.79692.49214.2445
H131.81123.53032.22721.85271.00643.00532.38802.57624.15493.62952.83064.2445

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 114.914 N1 C3 C4 108.753
N1 C3 H11 107.601 C2 C3 C4 111.275
C2 C3 H11 109.090 C3 N1 H7 110.820
C3 N1 H8 111.955 C3 C2 H9 110.106
C3 C2 H10 110.431 C3 C2 H12 110.773
C3 C4 O5 113.214 C3 C4 O6 123.299
C4 C3 H11 104.647 C4 O5 H13 102.640
O5 C4 O6 123.470 H7 N1 H8 107.026
H9 C2 H10 107.735 H9 C2 H12 109.120
H10 C2 H12 108.604
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.303      
2 C 0.854      
3 C 0.074      
4 C 0.799      
5 O -0.434      
6 O -0.557      
7 H 0.045      
8 H 0.023      
9 H -0.194      
10 H -0.144      
11 H -0.200      
12 H -0.189      
13 H 0.226      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  5.164 1.865 0.388 5.504
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.227 -0.070 -0.087
y -0.070 -38.162 0.605
z -0.087 0.605 -34.465
Traceless
 xyz
x -3.913 -0.070 -0.087
y -0.070 -0.816 0.605
z -0.087 0.605 4.729
Polar
3z2-r29.458
x2-y2-2.065
xy-0.070
xz-0.087
yz0.605


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.458 0.196 0.088
y 0.196 9.519 -0.126
z 0.088 -0.126 6.923


<r2> (average value of r2) Å2
<r2> 165.556
(<r2>)1/2 12.867