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

using model chemistry: B97D3/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B97D3/3-21G
 hartrees
Energy at 0K-321.776345
Energy at 298.15K-321.786277
HF Energy-321.776345
Nuclear repulsion energy 
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 B97D3/3-21G
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 3443 3384 4.72      
2 A 3340 3283 0.59      
3 A 3101 3048 8.60      
4 A 3069 3017 18.76      
5 A 2997 2946 14.61      
6 A 2990 2939 39.16      
7 A 2254 2216 958.15      
8 A 1752 1722 504.16      
9 A 1673 1644 19.47      
10 A 1597 1570 177.63      
11 A 1526 1500 6.92      
12 A 1492 1467 7.96      
13 A 1392 1368 9.15      
14 A 1343 1320 5.52      
15 A 1314 1292 11.84      
16 A 1268 1246 8.47      
17 A 1249 1228 87.75      
18 A 1170 1150 95.30      
19 A 1138 1119 42.40      
20 A 1034 1016 9.25      
21 A 987 970 7.24      
22 A 932 916 9.91      
23 A 899 883 27.43      
24 A 825 811 46.05      
25 A 763 750 11.03      
26 A 677 665 15.60      
27 A 558 548 5.91      
28 A 486 478 12.16      
29 A 428 421 8.93      
30 A 382 375 14.25      
31 A 345 339 7.52      
32 A 206 202 4.46      
33 A 86 85 0.49      

Unscaled Zero Point Vibrational Energy (zpe) 23356.9 cm-1
Scaled (by 0.983) Zero Point Vibrational Energy (zpe) 22959.8 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 B97D3/3-21G
ABC
0.23158 0.08464 0.06630

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.865 0.582 0.150
C2 1.347 -0.742 -0.376
C3 -0.007 -1.041 0.299
C4 -1.081 0.057 0.021
O5 -0.581 1.323 -0.054
O6 -2.281 -0.216 -0.087
H7 2.620 0.963 -0.435
H8 2.191 0.491 1.123
H9 2.065 -1.561 -0.208
H10 1.202 -0.614 -1.457
H11 -0.413 -1.995 -0.057
H12 0.137 -1.119 1.390
H13 0.491 1.263 0.065

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.51562.48172.99512.56374.22851.02841.03002.18162.11043.44502.72351.5352
C21.51561.54252.58762.84373.67772.12832.11621.10151.09812.18382.17442.2239
C32.48171.54251.56112.45782.44943.38442.80302.19522.17381.09591.10402.3685
C42.99512.58761.56111.36281.23533.83753.47983.54512.80162.15962.17801.9820
O52.56372.84372.45781.36282.29343.24353.12433.91652.98343.32182.92681.0807
O64.22853.67772.44941.23532.29345.05274.68654.55053.76352.57962.97433.1459
H71.02842.12833.38443.83753.24355.05271.68312.59422.35484.25293.71912.2067
H81.03002.11622.80303.47983.12434.68651.68312.44882.97593.78802.62362.1456
H92.18161.10152.19523.54513.91654.55052.59422.44881.78902.51942.54263.2437
H102.11041.09812.17382.80162.98343.76352.35482.97591.78902.54383.08162.5188
H113.44502.18381.09592.15963.32182.57964.25293.78802.51942.54381.77873.3827
H122.72352.17441.10402.17802.92682.97433.71912.62362.54263.08161.77872.7491
H131.53522.22392.36851.98201.08073.14592.20672.14563.24372.51883.38272.7491

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 106.806 N1 C2 H9 116.439
N1 C2 H10 105.579 C2 N1 H7 112.309
C2 N1 H8 111.926 C2 C3 C4 108.909
C2 C3 H11 112.269 C2 C3 H12 110.018
C3 C2 H9 110.933 C3 C2 H10 109.036
C3 C4 O5 111.306 C3 C4 O6 124.257
C4 C3 H11 110.561 C4 C3 H12 107.284
C4 O5 H13 109.479 O5 C4 O6 124.377
H7 N1 H8 108.831 H9 C2 H10 107.756
H11 C3 H12 107.676
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.689      
2 C -0.283      
3 C -0.515      
4 C 0.631      
5 O -0.576      
6 O -0.487      
7 H 0.311      
8 H 0.306      
9 H 0.213      
10 H 0.241      
11 H 0.238      
12 H 0.224      
13 H 0.385      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  7.319 -1.477 0.603 7.491
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.073 2.654 -0.190
y 2.654 -37.258 0.285
z -0.190 0.285 -32.963
Traceless
 xyz
x -1.962 2.654 -0.190
y 2.654 -2.240 0.285
z -0.190 0.285 4.202
Polar
3z2-r28.404
x2-y20.185
xy2.654
xz-0.190
yz0.285


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.660 0.553 0.122
y 0.553 5.917 -0.056
z 0.122 -0.056 4.644


<r2> (average value of r2) Å2
<r2> 171.273
(<r2>)1/2 13.087