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

using model chemistry: B3LYP/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 B3LYP/cc-pVDZ
 hartrees
Energy at 0K-323.767183
Energy at 298.15K-323.776709
Nuclear repulsion energy249.419205
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/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 3547 3441 4.57      
2 A 3464 3360 2.02      
3 A 3414 3311 282.28      
4 A 3140 3046 6.48      
5 A 3103 3010 27.20      
6 A 3034 2943 27.94      
7 A 3030 2939 2.42      
8 A 1862 1806 282.26      
9 A 1639 1590 26.48      
10 A 1471 1427 29.53      
11 A 1460 1416 4.00      
12 A 1447 1403 379.43      
13 A 1390 1349 10.55      
14 A 1379 1338 1.91      
15 A 1314 1275 8.85      
16 A 1233 1196 15.70      
17 A 1211 1174 10.00      
18 A 1147 1113 8.73      
19 A 1099 1066 48.26      
20 A 1012 982 1.24      
21 A 939 910 49.17      
22 A 895 868 52.10      
23 A 869 843 87.80      
24 A 804 780 9.72      
25 A 736 714 6.73      
26 A 561 544 4.51      
27 A 532 516 0.54      
28 A 409 397 4.97      
29 A 365 354 17.59      
30 A 306 297 13.84      
31 A 277 269 13.44      
32 A 225 218 0.30      
33 A 82 80 1.26      

Unscaled Zero Point Vibrational Energy (zpe) 23697.3 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 22986.3 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 B3LYP/cc-pVDZ
ABC
0.16120 0.11509 0.07150

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.054 1.365 -0.047
C2 1.482 -1.142 -0.184
C3 0.646 0.010 0.372
C4 -0.855 -0.173 0.052
O5 -1.504 0.986 -0.132
O6 -1.397 -1.251 0.006
H7 1.378 1.347 -1.018
H8 1.844 1.698 0.507
H9 1.059 -2.104 0.137
H10 1.479 -1.129 -1.287
H11 0.699 -0.009 1.476
H12 2.526 -1.075 0.162
H13 -0.792 1.671 -0.083

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.54741.47622.45382.58793.58551.02371.02053.47432.81802.08182.85681.8714
C22.54741.52802.54113.66782.88792.62712.94531.09901.10352.15731.10143.6188
C31.47621.52801.54602.41542.42892.06292.07412.16662.17821.10532.17972.2441
C42.45382.54111.54601.34171.20712.90553.31532.71982.85582.11413.50041.8504
O52.58793.66782.41541.34172.24373.03703.48234.02393.83552.90384.53590.9897
O63.58552.88792.42891.20712.24373.93694.41022.60333.15632.84563.93002.9853
H71.02372.62712.06292.90553.03703.93691.63303.65312.49272.91872.92792.3847
H81.02052.94532.07413.31533.48234.41021.63303.90013.36852.27202.87582.7010
H93.47431.09902.16662.71984.02392.60333.65313.90011.77632.51281.79264.2102
H102.81801.10352.17822.85583.83553.15632.49273.36851.77633.08231.78873.8011
H112.08182.15731.10532.11412.90382.84562.91872.27202.51283.08232.48972.7343
H122.85681.10142.17973.50044.53593.93002.92792.87581.79261.78872.48974.3132
H131.87143.61882.24411.85040.98972.98532.38472.70104.21023.80112.73434.3132

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.963 N1 C3 C4 108.546
N1 C3 H11 106.611 C2 C3 C4 111.506
C2 C3 H11 108.958 C3 N1 H7 109.891
C3 N1 H8 111.026 C3 C2 H9 110.053
C3 C2 H10 110.704 C3 C2 H12 110.941
C3 C4 O5 113.348 C3 C4 O6 123.358
C4 C3 H11 104.536 C4 O5 H13 104.044
O5 C4 O6 123.268 H7 N1 H8 106.037
H9 C2 H10 107.509 H9 C2 H12 109.107
H10 C2 H12 108.438
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.177      
2 C 0.033      
3 C -0.105      
4 C 0.185      
5 O -0.156      
6 O -0.232      
7 H 0.090      
8 H 0.092      
9 H 0.047      
10 H 0.022      
11 H 0.047      
12 H 0.010      
13 H 0.143      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.651 2.203 0.257 5.153
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.624 -0.131 -0.409
y -0.131 -37.156 -0.274
z -0.409 -0.274 -33.500
Traceless
 xyz
x -3.296 -0.131 -0.409
y -0.131 -1.094 -0.274
z -0.409 -0.274 4.390
Polar
3z2-r28.780
x2-y2-1.468
xy-0.131
xz-0.409
yz-0.274


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.123 0.186 0.092
y 0.186 7.539 -0.055
z 0.092 -0.055 5.347


<r2> (average value of r2) Å2
<r2> 163.354
(<r2>)1/2 12.781