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

using model chemistry: B3LYP/6-311G**

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/6-311G**
 hartrees
Energy at 0K-323.845635
Energy at 298.15K-323.855155
Nuclear repulsion energy249.723911
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/6-311G**
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 3586 3467 6.10      
2 A 3502 3386 12.99      
3 A 3479 3363 252.96      
4 A 3129 3025 8.18      
5 A 3093 2990 31.29      
6 A 3035 2934 22.09      
7 A 3028 2928 7.11      
8 A 1853 1792 293.77      
9 A 1663 1608 36.45      
10 A 1501 1451 11.98      
11 A 1491 1442 4.83      
12 A 1432 1385 404.52      
13 A 1409 1362 6.59      
14 A 1393 1347 4.04      
15 A 1317 1274 7.12      
16 A 1230 1189 9.32      
17 A 1212 1172 20.60      
18 A 1145 1107 11.29      
19 A 1086 1050 50.17      
20 A 1019 985 1.04      
21 A 938 907 47.13      
22 A 888 859 68.17      
23 A 857 829 102.98      
24 A 803 776 10.19      
25 A 739 714 8.74      
26 A 562 543 5.04      
27 A 532 514 0.95      
28 A 408 394 4.84      
29 A 363 351 13.82      
30 A 308 298 13.49      
31 A 278 268 13.30      
32 A 230 222 0.29      
33 A 75 72 1.09      

Unscaled Zero Point Vibrational Energy (zpe) 23791.3 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 23001.4 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/6-311G**
ABC
0.16171 0.11480 0.07161

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.079 1.350 -0.029
C2 1.466 -1.156 -0.204
C3 0.645 -0.002 0.373
C4 -0.859 -0.165 0.054
O5 -1.490 0.998 -0.160
O6 -1.415 -1.230 0.032
H7 1.445 1.344 -0.977
H8 1.810 1.705 0.576
H9 1.036 -2.111 0.097
H10 1.464 -1.121 -1.298
H11 0.699 -0.040 1.467
H12 2.501 -1.105 0.142
H13 -0.784 1.680 -0.117

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.54131.47612.46172.59643.58901.01601.01313.46332.80422.07792.84201.8942
C22.54131.52872.54063.65752.89142.61612.98511.09011.09462.15091.09283.6209
C31.47611.52871.54682.41742.42252.06742.07682.16192.17121.09602.17112.2613
C42.46172.54061.54681.34001.20162.94093.30082.71632.85232.10743.49071.8545
O52.59643.65752.41741.34002.23763.06643.45414.01353.80902.91794.52130.9827
O63.58902.89142.42251.20162.23763.97774.39452.60463.17242.81833.91972.9816
H71.01602.61612.06742.94093.06643.97771.63563.64072.48562.90642.89152.4128
H81.01312.98512.07683.30083.45414.39451.63563.92303.40882.25312.92612.6850
H93.46331.09012.16192.71634.01352.60463.64073.92301.76342.50541.77844.2103
H102.80421.09462.17122.85233.80903.17242.48563.40881.76343.06601.77503.7804
H112.07792.15091.09602.10742.91792.81832.90642.25312.50543.06602.47792.7692
H122.84201.09282.17113.49074.52133.91972.89152.92611.77841.77502.47794.3145
H131.89423.62092.26131.85450.98272.98162.41282.68504.21033.78042.76924.3145

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.494 N1 C3 C4 109.022
N1 C3 H11 106.838 C2 C3 C4 111.396
C2 C3 H11 108.948 C3 N1 H7 110.760
C3 N1 H8 111.735 C3 C2 H9 110.161
C3 C2 H10 110.628 C3 C2 H12 110.730
C3 C4 O5 113.541 C3 C4 O6 123.139
C4 C3 H11 104.471 C4 O5 H13 104.920
O5 C4 O6 123.295 H7 N1 H8 107.433
H9 C2 H10 107.642 H9 C2 H12 109.118
H10 C2 H12 108.484
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.502      
2 C -0.268      
3 C -0.170      
4 C 0.386      
5 O -0.300      
6 O -0.332      
7 H 0.214      
8 H 0.220      
9 H 0.140      
10 H 0.106      
11 H 0.156      
12 H 0.103      
13 H 0.248      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.839 2.165 0.327 5.311
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.367 -0.149 -0.307
y -0.149 -37.663 -0.047
z -0.307 -0.047 -33.709
Traceless
 xyz
x -3.681 -0.149 -0.307
y -0.149 -1.125 -0.047
z -0.307 -0.047 4.805
Polar
3z2-r29.611
x2-y2-1.704
xy-0.149
xz-0.307
yz-0.047


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.327 0.168 0.074
y 0.168 7.800 -0.056
z 0.074 -0.056 5.561


<r2> (average value of r2) Å2
<r2> 163.371
(<r2>)1/2 12.782