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

using model chemistry: HF/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-61.484696
Energy at 298.15K-61.494738
Nuclear repulsion energy138.045909
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/CEP-121G
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 3828 3493 6.43      
2 A 3723 3398 358.91      
3 A 3713 3388 68.25      
4 A 3276 2990 17.10      
5 A 3238 2955 42.75      
6 A 3177 2899 17.18      
7 A 3165 2888 65.11      
8 A 1891 1725 425.80      
9 A 1838 1677 81.13      
10 A 1656 1512 3.93      
11 A 1613 1472 15.70      
12 A 1544 1409 22.58      
13 A 1506 1374 33.97      
14 A 1478 1349 367.73      
15 A 1428 1303 7.03      
16 A 1406 1283 1.87      
17 A 1339 1222 83.58      
18 A 1255 1145 17.70      
19 A 1171 1068 19.63      
20 A 1077 983 14.08      
21 A 1041 950 30.32      
22 A 974 889 73.24      
23 A 943 860 175.55      
24 A 908 829 127.57      
25 A 860 785 25.70      
26 A 737 673 15.05      
27 A 598 546 8.54      
28 A 515 470 9.57      
29 A 413 377 17.14      
30 A 342 312 5.38      
31 A 281 256 4.14      
32 A 203 185 7.42      
33 A 85 78 1.19      

Unscaled Zero Point Vibrational Energy (zpe) 25610.5 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 23369.6 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 HF/CEP-121G
ABC
0.23455 0.08247 0.06532

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.951 0.557 0.105
C2 1.351 -0.714 -0.370
C3 0.012 -0.989 0.345
C4 -1.084 0.030 0.035
O5 -0.694 1.330 -0.010
O6 -2.249 -0.284 -0.144
H7 2.623 0.950 -0.525
H8 2.328 0.507 1.031
H9 2.013 -1.562 -0.214
H10 1.187 -0.623 -1.438
H11 -0.370 -1.964 0.074
H12 0.168 -0.990 1.422
H13 0.260 1.452 0.085

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.48342.49143.08142.75834.29051.00071.00202.14422.08643.42652.70321.9131
C21.48341.54272.57872.91453.63272.10002.09971.08721.08452.17272.16472.4676
C32.49141.54271.52852.45022.41813.36622.84152.15572.16661.08131.08852.4670
C43.08142.57871.52851.35821.21973.86003.58683.49192.78492.11822.12931.9573
O52.75832.91452.45021.35822.24563.37803.30123.96753.06503.31092.85980.9667
O64.29053.63272.41811.21972.24565.03974.79164.45023.68712.52932.96573.0598
H71.00072.10003.36623.86003.37805.03971.64452.60392.31664.21943.68482.4909
H81.00202.09972.84153.58683.30124.79161.64452.43582.94523.78162.65692.4629
H92.14421.08722.15573.49193.96754.45022.60392.43581.75002.43402.53163.4998
H102.08641.08452.16662.78493.06503.68712.31662.94521.75002.55153.05822.7353
H113.42652.17271.08132.11823.31092.52934.21943.78162.43402.55151.74773.4730
H122.70322.16471.08852.12932.85982.96573.68482.65692.53163.05821.74772.7855
H131.91312.46762.46701.95730.96673.05982.49092.46293.49982.73533.47302.7855

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 110.822 N1 C2 H9 112.132
N1 C2 H10 107.669 C2 N1 H7 114.015
C2 N1 H8 113.896 C2 C3 C4 114.207
C2 C3 H11 110.562 C2 C3 H12 109.505
C3 C2 H9 108.876 C3 C2 H10 109.884
C3 C4 O5 116.040 C3 C4 O6 122.870
C4 C3 H11 107.269 C4 C3 H12 107.723
C4 O5 H13 113.611 O5 C4 O6 121.081
H7 N1 H8 110.397 H9 C2 H10 107.382
H11 C3 H12 107.309
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.783      
2 C -0.182      
3 C -0.382      
4 C 0.380      
5 O -0.515      
6 O -0.291      
7 H 0.320      
8 H 0.306      
9 H 0.159      
10 H 0.174      
11 H 0.195      
12 H 0.170      
13 H 0.447      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  7.515 -1.789 0.763 7.763
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.818 2.194 -1.131
y 2.194 -38.355 -0.117
z -1.131 -0.117 -33.779
Traceless
 xyz
x -6.751 2.194 -1.131
y 2.194 -0.056 -0.117
z -1.131 -0.117 6.807
Polar
3z2-r213.615
x2-y2-4.463
xy2.194
xz-1.131
yz-0.117


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.609 0.573 0.203
y 0.573 6.163 0.018
z 0.203 0.018 5.233


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