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

using model chemistry: HF/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-321.993244
Energy at 298.15K-322.003254
Nuclear repulsion energy248.823788
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 HF/6-311+G(3df,2p)
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 3931 3571 443.94      
2 A 3814 3465 11.24      
3 A 3734 3393 6.57      
4 A 3256 2958 12.74      
5 A 3205 2912 33.43      
6 A 3160 2871 10.45      
7 A 3150 2862 56.26      
8 A 2009 1826 519.98      
9 A 1789 1625 37.57      
10 A 1640 1490 2.85      
11 A 1589 1444 17.19      
12 A 1556 1413 310.43      
13 A 1543 1402 73.83      
14 A 1491 1355 13.78      
15 A 1426 1296 3.91      
16 A 1406 1277 4.07      
17 A 1349 1225 53.47      
18 A 1244 1130 6.65      
19 A 1161 1055 14.05      
20 A 1101 1000 15.51      
21 A 1045 950 14.40      
22 A 981 892 45.16      
23 A 937 852 72.23      
24 A 892 811 30.31      
25 A 851 773 66.22      
26 A 766 696 19.45      
27 A 623 566 6.86      
28 A 522 475 10.36      
29 A 412 375 15.41      
30 A 332 301 10.87      
31 A 267 243 3.05      
32 A 198 180 5.19      
33 A 82 75 1.94      

Unscaled Zero Point Vibrational Energy (zpe) 25730.9 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 23379.1 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 HF/6-311+G(3df,2p)
ABC
0.24537 0.08276 0.06615

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.955 0.564 0.125
C2 1.358 -0.673 -0.371
C3 0.027 -0.957 0.321
C4 -1.092 0.030 0.028
O5 -0.751 1.303 -0.034
O6 -2.211 -0.314 -0.113
H7 2.709 0.868 -0.454
H8 2.313 0.450 1.051
H9 2.009 -1.532 -0.236
H10 1.199 -0.562 -1.437
H11 -0.339 -1.935 0.045
H12 0.172 -0.964 1.399
H13 0.188 1.413 0.071

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.46032.46403.09502.80974.26390.99770.99912.12752.06863.39322.67131.9610
C21.46031.52772.58042.90993.59642.05032.04831.08581.08342.15572.15072.4323
C32.46401.52771.52072.41642.36853.33542.78202.13742.15011.07961.08732.3889
C43.09502.58041.52071.31901.17883.92193.57973.48202.78332.10392.11271.8849
O52.80972.90992.41641.31902.17923.51263.36013.96143.04133.26432.83560.9515
O64.26393.59642.36851.17882.17925.07094.73294.39353.66612.48082.89602.9613
H70.99772.05033.33543.92193.51265.07091.61102.50902.29994.17043.63612.6321
H80.99912.04832.78203.57973.36014.73291.61102.38272.90783.70592.58902.5299
H92.12751.08582.13743.48203.96144.39352.50902.38271.74362.39882.52353.4757
H102.06861.08342.15012.78333.04133.66612.29992.90781.74362.53913.04292.6826
H113.39322.15571.07962.10393.26432.48084.17043.70592.39882.53911.74303.3888
H122.67132.15071.08732.11272.83562.89603.63612.58902.52353.04291.74302.7223
H131.96102.43232.38891.88490.95152.96132.63212.52993.47572.68263.38882.7223

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 111.083 N1 C2 H9 112.515
N1 C2 H10 107.907 C2 N1 H7 111.665
C2 N1 H8 111.398 C2 C3 C4 115.664
C2 C3 H11 110.363 C2 C3 H12 109.509
C3 C2 H9 108.553 C3 C2 H10 109.691
C3 C4 O5 116.450 C3 C4 O6 122.143
C4 C3 H11 106.786 C4 C3 H12 107.035
C4 O5 H13 111.204 O5 C4 O6 121.393
H7 N1 H8 107.565 H9 C2 H10 106.988
H11 C3 H12 107.097
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.933      
2 C 0.181      
3 C -0.193      
4 C 1.332      
5 O -0.786      
6 O -0.886      
7 H 0.168      
8 H 0.181      
9 H 0.121      
10 H 0.147      
11 H 0.143      
12 H 0.149      
13 H 0.376      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  6.455 -1.167 0.633 6.590
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.946 0.951 -0.683
y 0.951 -37.502 -0.084
z -0.683 -0.084 -33.693
Traceless
 xyz
x -5.349 0.951 -0.683
y 0.951 -0.183 -0.084
z -0.683 -0.084 5.532
Polar
3z2-r211.063
x2-y2-3.444
xy0.951
xz-0.683
yz-0.084


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.483 0.370 0.110
y 0.370 7.140 0.021
z 0.110 0.021 6.000


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