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

using model chemistry: BLYP/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 BLYP/6-311G*
 hartrees
Energy at 0K-323.727195
Energy at 298.15K-323.736549
Nuclear repulsion energy247.323369
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/6-311G*
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 3467 3458 1.23      
2 A 3384 3376 0.92      
3 A 3221 3213 206.03      
4 A 3051 3043 11.98      
5 A 3016 3009 39.23      
6 A 2962 2955 33.67      
7 A 2956 2949 2.61      
8 A 1774 1769 261.38      
9 A 1665 1660 35.04      
10 A 1481 1477 9.53      
11 A 1470 1466 5.45      
12 A 1408 1405 365.58      
13 A 1381 1378 6.81      
14 A 1361 1358 10.68      
15 A 1283 1280 5.70      
16 A 1197 1194 2.12      
17 A 1157 1154 23.37      
18 A 1101 1098 15.91      
19 A 1045 1043 54.31      
20 A 995 993 1.98      
21 A 925 923 82.18      
22 A 891 888 70.90      
23 A 832 830 74.97      
24 A 766 764 7.11      
25 A 707 705 7.54      
26 A 542 541 4.48      
27 A 508 507 0.51      
28 A 398 397 4.87      
29 A 359 358 16.04      
30 A 308 307 13.91      
31 A 267 267 11.26      
32 A 218 217 0.30      
33 A 75 75 1.15      

Unscaled Zero Point Vibrational Energy (zpe) 23085.1 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 23027.4 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 BLYP/6-311G*
ABC
0.15841 0.11278 0.07023

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.074 1.369 -0.031
C2 1.490 -1.159 -0.203
C3 0.653 -0.004 0.377
C4 -0.867 -0.174 0.054
O5 -1.503 1.007 -0.157
O6 -1.429 -1.249 0.028
H7 1.426 1.362 -0.993
H8 1.828 1.721 0.563
H9 1.073 -2.125 0.107
H10 1.482 -1.134 -1.304
H11 0.714 -0.035 1.478
H12 2.534 -1.097 0.137
H13 -0.782 1.696 -0.102

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.56721.49302.48112.60523.62251.02451.02183.49612.83782.09212.87001.8861
C22.56721.53922.56713.69422.92932.64262.99861.09681.10132.16571.09983.6495
C31.49301.53921.56322.44052.45092.08382.09522.17822.18851.10312.18802.2759
C42.48112.56711.56321.35791.21332.95253.33332.75152.87812.13213.52461.8785
O52.60523.69422.44051.35792.26483.06653.48144.06343.84782.94534.56120.9986
O63.62252.92932.45091.21332.26484.00184.43992.65203.20292.85833.96723.0180
H71.02452.64262.08382.95253.06654.00181.64593.67352.51672.92672.92412.4042
H81.02182.99862.09523.33333.48144.43991.64593.94503.42872.27182.93542.6933
H93.49611.09682.17822.75154.06342.65203.67353.94501.77192.52461.78644.2521
H102.83781.10132.18852.87813.84783.20292.51673.42871.77193.08831.78493.8180
H112.09212.16571.10312.13212.94532.85832.92672.27182.52463.08832.49712.7807
H122.87001.09982.18803.52464.56123.96722.92412.93541.78641.78492.49714.3415
H131.88613.64952.27591.87850.99863.01802.40422.69334.25213.81802.78074.3415

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.692 N1 C3 C4 108.530
N1 C3 H11 106.423 C2 C3 C4 111.675
C2 C3 H11 108.978 C3 N1 H7 110.346
C3 N1 H8 111.480 C3 C2 H9 110.320
C3 C2 H10 110.865 C3 C2 H12 110.919
C3 C4 O5 113.135 C3 C4 O6 123.452
C4 C3 H11 104.870 C4 O5 H13 104.690
O5 C4 O6 123.390 H7 N1 H8 107.097
H9 C2 H10 107.427 H9 C2 H12 108.833
H10 C2 H12 108.375
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.751      
2 C -0.581      
3 C -0.205      
4 C 0.415      
5 O -0.454      
6 O -0.299      
7 H 0.320      
8 H 0.327      
9 H 0.228      
10 H 0.196      
11 H 0.228      
12 H 0.192      
13 H 0.382      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.867 2.124 0.317 5.320
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.721 0.153 -0.329
y 0.153 -37.974 -0.120
z -0.329 -0.120 -34.091
Traceless
 xyz
x -3.688 0.153 -0.329
y 0.153 -1.068 -0.120
z -0.329 -0.120 4.756
Polar
3z2-r29.511
x2-y2-1.747
xy0.153
xz-0.329
yz-0.120


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.662 0.146 0.097
y 0.146 8.127 -0.064
z 0.097 -0.064 5.656


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