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

using model chemistry: BLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/6-31+G**
 hartrees
Energy at 0K-323.672219
Energy at 298.15K-323.681444
Nuclear repulsion energy246.662966
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 BLYP/6-31+G**
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 3494 3475 8.11      
2 A 3402 3384 0.14      
3 A 3231 3214 305.76      
4 A 3065 3049 7.26      
5 A 3032 3015 29.66      
6 A 2975 2959 16.94      
7 A 2966 2950 14.49      
8 A 1755 1745 311.96      
9 A 1616 1607 31.91      
10 A 1469 1461 10.08      
11 A 1458 1451 3.46      
12 A 1374 1366 63.39      
13 A 1368 1361 282.97      
14 A 1342 1335 18.40      
15 A 1267 1261 6.21      
16 A 1191 1184 7.76      
17 A 1153 1147 31.80      
18 A 1093 1087 13.75      
19 A 1029 1024 43.26      
20 A 988 983 1.76      
21 A 911 906 63.37      
22 A 889 884 65.39      
23 A 818 814 93.24      
24 A 763 759 4.51      
25 A 699 695 7.24      
26 A 548 545 3.10      
27 A 503 501 1.30      
28 A 394 392 3.95      
29 A 338 336 11.15      
30 A 276 274 14.16      
31 A 260 259 14.46      
32 A 227 226 0.30      
33 A 53 53 0.96      

Unscaled Zero Point Vibrational Energy (zpe) 22973.1 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 22851.3 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 BLYP/6-31+G**
ABC
0.15812 0.11123 0.07024

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.131 1.328 0.026
C2 1.446 -1.197 -0.262
C3 0.652 -0.042 0.384
C4 -0.873 -0.144 0.059
O5 -1.452 1.052 -0.234
O6 -1.498 -1.194 0.096
H7 1.605 1.327 -0.884
H8 1.793 1.695 0.715
H9 0.994 -2.164 0.001
H10 1.436 -1.109 -1.362
H11 0.714 -0.133 1.483
H12 2.492 -1.185 0.082
H13 -0.694 1.708 -0.195

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.56061.49502.48682.61073.64421.02591.02343.49482.82072.10532.85851.8771
C22.56061.54312.56733.66852.96582.60483.07201.09931.10352.17071.10173.6084
C31.49501.54311.56292.45092.45652.09592.10422.18332.19121.10442.18762.2823
C42.48682.56731.56291.36061.22313.03273.30422.75172.87822.13263.52341.8773
O52.61073.66852.45091.36062.27143.13783.44114.04763.77963.00754.54591.0029
O63.64422.96582.45651.22312.27144.11744.42282.67583.27782.81863.99093.0256
H71.02592.60482.09593.03273.13784.11741.65133.65342.48852.92082.83392.4303
H81.02343.07202.10423.30423.44114.42281.65134.00513.50732.25733.03072.6478
H93.49481.09932.18332.75174.04762.67583.65344.00511.77902.53011.79214.2282
H102.82071.10352.19122.87823.77963.27782.48853.50731.77903.09311.79013.7193
H112.10532.17071.10442.13263.00752.81862.92082.25732.53013.09312.49692.8612
H122.85851.10172.18763.52344.54593.99092.83393.03071.79211.79012.49694.3125
H131.87713.60842.28231.87731.00293.02562.43032.64784.22823.71932.86124.3125

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 114.872 N1 C3 C4 108.806
N1 C3 H11 107.223 C2 C3 C4 111.489
C2 C3 H11 109.027 C3 N1 H7 111.122
C3 N1 H8 111.984 C3 C2 H9 110.302
C3 C2 H10 110.677 C3 C2 H12 110.500
C3 C4 O5 113.754 C3 C4 O6 123.238
C4 C3 H11 104.865 C4 O5 H13 104.152
O5 C4 O6 122.984 H7 N1 H8 107.367
H9 C2 H10 107.728 H9 C2 H12 109.024
H10 C2 H12 108.538
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.677      
2 C -0.521      
3 C -0.019      
4 C 0.442      
5 O -0.411      
6 O -0.438      
7 H 0.299      
8 H 0.297      
9 H 0.188      
10 H 0.150      
11 H 0.163      
12 H 0.147      
13 H 0.380      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  5.306 1.936 0.391 5.662
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.900 -0.223 -0.158
y -0.223 -38.640 0.465
z -0.158 0.465 -34.691
Traceless
 xyz
x -4.234 -0.223 -0.158
y -0.223 -0.844 0.465
z -0.158 0.465 5.079
Polar
3z2-r210.158
x2-y2-2.260
xy-0.223
xz-0.158
yz0.465


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.924 0.229 0.103
y 0.229 9.154 -0.126
z 0.103 -0.126 6.456


<r2> (average value of r2) Å2
<r2> 168.012
(<r2>)1/2 12.962