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All results from a given calculation for NH2CH2CH2COOH (β–alanine)

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-323.708468
Energy at 298.15K-323.718311
Nuclear repulsion energy248.406736
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 B1B95/6-311G**
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 3618 3474 7.64      
2 A 3533 3392 0.94      
3 A 3319 3187 698.30      
4 A 3141 3016 7.16      
5 A 3095 2972 22.43      
6 A 3045 2924 6.50      
7 A 3026 2905 62.43      
8 A 1874 1800 403.48      
9 A 1652 1586 35.38      
10 A 1510 1449 16.12      
11 A 1486 1426 257.16      
12 A 1455 1397 11.12      
13 A 1415 1358 7.96      
14 A 1365 1310 9.55      
15 A 1311 1259 7.54      
16 A 1296 1245 20.95      
17 A 1251 1201 65.92      
18 A 1147 1101 7.95      
19 A 1091 1048 6.40      
20 A 1020 979 7.94      
21 A 986 947 76.66      
22 A 959 920 31.48      
23 A 913 877 16.60      
24 A 871 837 41.68      
25 A 817 784 28.19      
26 A 698 670 10.11      
27 A 580 557 2.59      
28 A 486 467 9.14      
29 A 408 391 14.41      
30 A 329 316 6.45      
31 A 283 271 7.22      
32 A 198 190 4.26      
33 A 86 83 0.44      

Unscaled Zero Point Vibrational Energy (zpe) 24131.3 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 23168.5 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 B1B95/6-311G**
ABC
0.24312 0.08407 0.06674

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.908 0.566 0.151
C2 1.353 -0.687 -0.373
C3 0.015 -0.985 0.291
C4 -1.083 0.038 0.026
O5 -0.678 1.307 -0.056
O6 -2.236 -0.273 -0.083
H7 2.680 0.895 -0.414
H8 2.256 0.438 1.094
H9 2.027 -1.541 -0.243
H10 1.205 -0.555 -1.447
H11 -0.369 -1.952 -0.030
H12 0.152 -1.046 1.377
H13 0.302 1.332 0.061

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.46712.45183.04042.69844.23481.01171.01332.14682.07523.40002.68081.7820
C21.46711.52432.57342.86423.62512.06492.05791.09541.09202.16502.15352.3178
C32.45181.52431.52412.41982.39063.33732.77402.15472.15091.08861.09602.3469
C43.04042.57341.52411.33481.19893.88463.52903.49822.78592.11462.12751.8965
O52.69842.86422.41981.33482.21873.40213.26943.93222.99193.27352.87760.9876
O64.23483.62512.39061.19892.21875.06364.69824.45053.71292.51152.90413.0066
H71.01172.06493.33733.88463.40215.06361.63222.52812.31194.18953.65642.4640
H81.01332.05792.77403.52903.26944.69821.63222.39972.92423.72432.59072.3844
H92.14681.09542.15473.49823.93224.45052.52812.39971.75962.44052.52683.3651
H102.07521.09202.15092.78592.99193.71292.31192.92421.75962.53773.05432.5800
H113.40002.16501.08862.11463.27352.51154.18953.72432.44052.53771.75273.3536
H122.68082.15351.09602.12752.87762.90413.65642.59072.52683.05431.75272.7225
H131.78202.31782.34691.89650.98763.00662.46402.38443.36512.58003.35362.7225

picture of β–alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 110.079 N1 C2 H9 113.013
N1 C2 H10 107.463 C2 N1 H7 111.493
C2 N1 H8 110.793 C2 C3 C4 115.173
C2 C3 H11 110.798 C2 C3 H12 109.454
C3 C2 H9 109.584 C3 C2 H10 109.482
C3 C4 O5 115.491 C3 C4 O6 122.340
C4 C3 H11 106.880 C4 C3 H12 107.454
C4 O5 H13 108.575 O5 C4 O6 122.161
H7 N1 H8 107.418 H9 C2 H10 107.113
H11 C3 H12 106.693
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.522      
2 C -0.187      
3 C -0.351      
4 C 0.364      
5 O -0.311      
6 O -0.335      
7 H 0.232      
8 H 0.226      
9 H 0.139      
10 H 0.163      
11 H 0.166      
12 H 0.158      
13 H 0.258      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  6.383 -1.238 0.561 6.526
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.663 1.581 -0.280
y 1.581 -37.200 0.060
z -0.280 0.060 -33.415
Traceless
 xyz
x -3.356 1.581 -0.280
y 1.581 -1.161 0.060
z -0.280 0.060 4.516
Polar
3z2-r29.033
x2-y2-1.463
xy1.581
xz-0.280
yz0.060


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.327 0.428 0.090
y 0.428 6.789 -0.019
z 0.090 -0.019 5.540


<r2> (average value of r2) Å2
<r2> 198.368
(<r2>)1/2 14.084