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

using model chemistry: B3LYP/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 B3LYP/CEP-31G
 hartrees
Energy at 0K-62.933522
Energy at 298.15K-62.943347
Nuclear repulsion energy136.595645
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/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 3616 3502 5.02      
2 A 3501 3390 0.99      
3 A 3142 3043 25.30      
4 A 3117 3019 38.79      
5 A 3049 2953 21.42      
6 A 3038 2942 53.75      
7 A 2823 2734 972.47      
8 A 1712 1658 346.22      
9 A 1680 1627 80.89      
10 A 1522 1473 9.43      
11 A 1480 1434 30.05      
12 A 1465 1419 190.77      
13 A 1410 1366 15.94      
14 A 1361 1318 9.40      
15 A 1303 1262 3.49      
16 A 1278 1237 18.62      
17 A 1213 1175 130.54      
18 A 1143 1107 20.11      
19 A 1131 1095 137.06      
20 A 1071 1037 14.73      
21 A 995 964 29.58      
22 A 938 908 3.99      
23 A 911 882 73.51      
24 A 853 826 65.65      
25 A 792 767 8.19      
26 A 657 636 10.41      
27 A 545 528 2.69      
28 A 480 465 10.09      
29 A 425 412 10.48      
30 A 350 339 2.39      
31 A 310 300 14.33      
32 A 201 194 7.75      
33 A 86 84 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 23798.2 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 23046.2 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/CEP-31G
ABC
0.22811 0.08247 0.06454

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.901 0.585 0.137
C2 1.375 -0.742 -0.358
C3 -0.007 -1.046 0.293
C4 -1.089 0.043 0.024
O5 -0.611 1.340 -0.043
O6 -2.302 -0.227 -0.097
H7 2.626 0.981 -0.467
H8 2.239 0.544 1.105
H9 2.077 -1.571 -0.150
H10 1.264 -0.659 -1.451
H11 -0.404 -2.003 -0.079
H12 0.107 -1.145 1.390
H13 0.416 1.333 0.050

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.50992.51473.04072.62964.28741.02411.02572.18202.11503.47162.78901.6652
C21.50991.55802.61392.89423.72252.13152.12991.10611.10212.19832.19652.3217
C32.51471.55801.55822.48392.46793.40892.86872.19412.19301.10051.10672.4287
C43.04072.61391.55821.38371.24893.86313.53453.55742.86442.15932.16911.9827
O52.62962.89422.48391.38372.30593.28493.17403.96363.08103.34882.95661.0317
O64.28743.72252.46791.24892.30595.08804.76014.58093.83952.59932.97573.1378
H71.02412.13153.40893.86313.28495.08801.67742.62982.34724.26983.78352.2970
H81.02572.12992.86873.53453.17404.76011.67742.46472.98793.85602.73452.2491
H92.18201.10612.19413.55743.96364.58092.62982.46471.78482.51852.53623.3516
H102.11501.10212.19302.86443.08103.83952.34722.98791.78482.54363.10572.6342
H113.47162.19831.10052.15933.34882.59934.26983.85602.51852.54361.77603.4374
H122.78902.19651.10672.16912.95662.97573.78352.73452.53623.10571.77602.8340
H131.66522.32172.42871.98271.03173.13782.29702.24913.35162.63423.43742.8340

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 110.098 N1 C2 H9 112.119
N1 C2 H10 107.105 C2 N1 H7 113.129
C2 N1 H8 112.888 C2 C3 C4 114.032
C2 C3 H11 110.378 C2 C3 H12 109.877
C3 C2 H9 109.726 C3 C2 H10 109.870
C3 C4 O5 115.066 C3 C4 O6 122.701
C4 C3 H11 107.366 C4 C3 H12 107.767
C4 O5 H13 109.478 O5 C4 O6 122.218
H7 N1 H8 109.839 H9 C2 H10 107.850
H11 C3 H12 107.150
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.601      
2 C -0.287      
3 C -0.147      
4 C -0.171      
5 O -0.298      
6 O -0.107      
7 H 0.288      
8 H 0.272      
9 H 0.181      
10 H 0.172      
11 H 0.184      
12 H 0.143      
13 H 0.371      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  7.767 -1.982 0.672 8.044
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.907 2.890 -0.505
y 2.890 -38.090 0.203
z -0.505 0.203 -33.443
Traceless
 xyz
x -5.140 2.890 -0.505
y 2.890 -0.915 0.203
z -0.505 0.203 6.055
Polar
3z2-r212.110
x2-y2-2.817
xy2.890
xz-0.505
yz0.203


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.416 0.558 0.078
y 0.558 6.482 -0.059
z 0.078 -0.059 5.128


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