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

using model chemistry: B1B95/CEP-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 B1B95/CEP-31G
 hartrees
Energy at 0K-62.855145
Energy at 298.15K-62.865008
Nuclear repulsion energy137.413091
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/CEP-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 3678 3521 9.96      
2 A 3556 3405 3.28      
3 A 3179 3044 17.91      
4 A 3147 3013 34.55      
5 A 3084 2953 12.80      
6 A 3066 2936 53.03      
7 A 2857 2736 1022.71      
8 A 1752 1677 393.59      
9 A 1683 1612 78.90      
10 A 1519 1455 14.53      
11 A 1476 1413 47.21      
12 A 1465 1403 197.70      
13 A 1415 1354 14.63      
14 A 1366 1308 14.48      
15 A 1304 1248 5.88      
16 A 1289 1235 43.73      
17 A 1241 1188 103.10      
18 A 1150 1101 21.31      
19 A 1142 1093 144.72      
20 A 1101 1054 11.40      
21 A 1001 958 34.25      
22 A 959 919 2.71      
23 A 914 875 73.53      
24 A 868 831 73.01      
25 A 810 775 14.57      
26 A 665 636 10.40      
27 A 556 532 2.73      
28 A 481 460 10.04      
29 A 430 412 10.98      
30 A 347 332 2.62      
31 A 313 299 15.00      
32 A 198 190 7.70      
33 A 85 82 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 24047.0 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 23025.0 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/CEP-31G
ABC
0.23229 0.08322 0.06536

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.896 0.572 0.145
C2 1.364 -0.729 -0.363
C3 -0.007 -1.037 0.290
C4 -1.084 0.044 0.025
O5 -0.605 1.327 -0.049
O6 -2.292 -0.224 -0.090
H7 2.617 0.979 -0.450
H8 2.222 0.524 1.112
H9 2.059 -1.568 -0.181
H10 1.241 -0.630 -1.452
H11 -0.403 -1.992 -0.079
H12 0.111 -1.137 1.384
H13 0.418 1.321 0.051

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.49462.49563.02852.61954.26981.01991.02142.17062.10363.45092.76401.6595
C21.49461.54912.59612.86393.70122.12022.11741.10461.10062.19032.18812.2953
C32.49561.54911.54882.46192.45553.39022.84212.18432.18161.09841.10452.4075
C43.02852.59611.54881.37171.24333.84613.51273.53812.83602.14952.16101.9716
O52.61952.86392.46191.37172.29263.26463.15953.93633.03423.32552.93921.0278
O64.26983.70122.45551.24332.29265.06714.73104.55523.80902.58782.96353.1231
H71.01992.12023.39023.84613.26465.06711.67482.62152.34204.25253.75772.2805
H81.02142.11742.84213.51273.15954.73101.67482.46512.97843.82632.69972.2390
H92.17061.10462.18433.53813.93634.55522.62152.46511.77912.50022.53543.3304
H102.10361.10062.18162.83603.03423.80902.34202.97841.77912.53853.09492.5969
H113.45092.19031.09842.14953.32552.58784.25253.82632.50022.53851.77103.4157
H122.76402.18811.10452.16102.93922.96353.75772.69972.53543.09491.77102.8129
H131.65952.29532.40751.97161.02783.12312.28052.23903.33042.59693.41572.8129

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 110.138 N1 C2 H9 112.389
N1 C2 H10 107.331 C2 N1 H7 113.618
C2 N1 H8 113.272 C2 C3 C4 113.863
C2 C3 H11 110.485 C2 C3 H12 109.954
C3 C2 H9 109.657 C3 C2 H10 109.676
C3 C4 O5 114.777 C3 C4 O6 122.784
C4 C3 H11 107.361 C4 C3 H12 107.891
C4 O5 H13 109.672 O5 C4 O6 122.428
H7 N1 H8 110.258 H9 C2 H10 107.565
H11 C3 H12 107.014
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.617      
2 C -0.293      
3 C -0.151      
4 C -0.180      
5 O -0.297      
6 O -0.104      
7 H 0.299      
8 H 0.284      
9 H 0.182      
10 H 0.172      
11 H 0.187      
12 H 0.144      
13 H 0.375      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  7.775 -1.903 0.691 8.035
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.597 2.968 -0.446
y 2.968 -37.858 0.224
z -0.446 0.224 -33.146
Traceless
 xyz
x -5.095 2.968 -0.446
y 2.968 -0.986 0.224
z -0.446 0.224 6.081
Polar
3z2-r212.162
x2-y2-2.739
xy2.968
xz-0.446
yz0.224


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.150 0.543 0.074
y 0.543 6.266 -0.067
z 0.074 -0.067 5.017


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