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

using model chemistry: B3LYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/6-31G
 hartrees
Energy at 0K-323.638391
Energy at 298.15K-323.648328
Nuclear repulsion energy245.829223
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 B3LYP/6-31G
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 3615 3478 6.89      
2 A 3506 3373 1.66      
3 A 3138 3019 7.76      
4 A 3108 2990 21.57      
5 A 3040 2924 15.77      
6 A 3033 2918 33.18      
7 A 2854 2745 839.69      
8 A 1781 1713 356.07      
9 A 1706 1641 53.88      
10 A 1556 1497 8.89      
11 A 1514 1457 47.36      
12 A 1510 1453 184.22      
13 A 1436 1381 18.24      
14 A 1387 1334 4.18      
15 A 1332 1281 3.72      
16 A 1306 1257 19.78      
17 A 1239 1192 115.17      
18 A 1169 1124 11.25      
19 A 1110 1068 135.18      
20 A 1080 1039 13.50      
21 A 1008 969 25.01      
22 A 963 926 6.30      
23 A 916 881 36.97      
24 A 857 824 105.89      
25 A 812 781 14.36      
26 A 685 659 10.56      
27 A 567 545 3.12      
28 A 499 480 9.41      
29 A 427 411 10.06      
30 A 352 339 3.46      
31 A 313 301 12.30      
32 A 208 200 7.10      
33 A 93 89 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 24058.8 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 23144.6 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 B3LYP/6-31G
ABC
0.23434 0.08393 0.06590

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.898 0.569 0.131
C2 1.356 -0.731 -0.354
C3 -0.009 -1.021 0.297
C4 -1.079 0.044 0.023
O5 -0.618 1.325 -0.038
O6 -2.273 -0.234 -0.101
H7 2.605 0.972 -0.477
H8 2.229 0.537 1.092
H9 2.044 -1.567 -0.163
H10 1.238 -0.647 -1.439
H11 -0.401 -1.979 -0.053
H12 0.114 -1.107 1.387
H13 0.399 1.336 0.056

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.48922.48753.02402.63204.25291.01601.01772.16032.09263.43612.75121.6847
C21.48921.53972.58282.86773.67142.11562.11241.09861.09512.17592.17182.3146
C32.48751.53971.53392.44622.42953.37672.84052.17322.16971.09291.10062.4038
C43.02402.58281.53391.36251.23203.83173.51143.51812.82472.13472.14691.9636
O52.63202.86772.44621.36252.27373.27223.16303.93193.04883.31082.91211.0219
O64.25293.67142.42951.23202.27375.03874.72074.51793.77922.55972.94503.1030
H71.01602.11563.37673.83173.27225.03871.67072.61852.32794.23363.74212.2985
H81.01772.11242.84053.51143.16304.72071.67072.45682.96563.81572.69552.2492
H92.16031.09862.17323.51813.93194.51792.61852.45681.76752.48162.51793.3432
H102.09261.09512.16972.82473.04883.77922.32792.96561.76752.52583.07642.6217
H113.43612.17591.09292.13473.31082.55974.23363.81572.48162.52581.76063.4120
H122.75122.17181.10062.14692.91212.94503.74212.69552.51793.07641.76062.7967
H131.68472.31462.40381.96361.02193.10302.29852.24923.34322.62173.41202.7967

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 110.414 N1 C2 H9 112.314
N1 C2 H10 107.152 C2 N1 H7 113.901
C2 N1 H8 113.507 C2 C3 C4 114.346
C2 C3 H11 110.330 C2 C3 H12 109.558
C3 C2 H9 109.787 C3 C2 H10 109.715
C3 C4 O5 115.123 C3 C4 O6 122.520
C4 C3 H11 107.521 C4 C3 H12 108.025
C4 O5 H13 110.056 O5 C4 O6 122.334
H7 N1 H8 110.471 H9 C2 H10 107.356
H11 C3 H12 106.758
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.755      
2 C -0.141      
3 C -0.334      
4 C 0.512      
5 O -0.580      
6 O -0.420      
7 H 0.317      
8 H 0.311      
9 H 0.150      
10 H 0.173      
11 H 0.178      
12 H 0.168      
13 H 0.422      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  7.331 -1.630 0.653 7.538
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.540 2.759 -0.499
y 2.759 -37.684 0.166
z -0.499 0.166 -33.308
Traceless
 xyz
x -4.043 2.759 -0.499
y 2.759 -1.260 0.166
z -0.499 0.166 5.303
Polar
3z2-r210.607
x2-y2-1.856
xy2.759
xz-0.499
yz0.166


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.828 0.604 0.162
y 0.604 6.238 -0.023
z 0.162 -0.023 4.907


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