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

using model chemistry: B2PLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-323.628214
Energy at 298.15K-323.638067
HF Energy-323.239575
Nuclear repulsion energy247.597946
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 B2PLYP/cc-pVTZ
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 3603 3457 8.18      
2 A 3518 3375 1.16      
3 A 3305 3171 692.03      
4 A 3138 3011 6.94      
5 A 3100 2975 19.85      
6 A 3048 2925 6.61      
7 A 3038 2915 53.43      
8 A 1826 1752 367.12      
9 A 1660 1593 27.46      
10 A 1528 1466 5.16      
11 A 1488 1428 230.62      
12 A 1477 1417 10.64      
13 A 1425 1367 10.80      
14 A 1378 1322 6.05      
15 A 1323 1269 3.42      
16 A 1300 1248 13.58      
17 A 1248 1197 83.60      
18 A 1156 1109 7.84      
19 A 1082 1039 7.51      
20 A 1028 986 6.98      
21 A 985 945 68.80      
22 A 956 917 28.14      
23 A 919 882 17.07      
24 A 867 831 53.63      
25 A 816 783 16.17      
26 A 699 671 8.80      
27 A 578 554 2.46      
28 A 492 472 8.65      
29 A 404 388 11.86      
30 A 324 311 7.85      
31 A 282 271 8.21      
32 A 201 193 4.73      
33 A 86 83 0.49      

Unscaled Zero Point Vibrational Energy (zpe) 24139.0 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 23158.9 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 B2PLYP/cc-pVTZ
ABC
0.24079 0.08360 0.06623

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.915 0.568 0.156
C2 1.354 -0.688 -0.376
C3 0.012 -0.990 0.287
C4 -1.086 0.039 0.035
O5 -0.677 1.312 -0.058
O6 -2.245 -0.271 -0.082
H7 2.689 0.888 -0.410
H8 2.273 0.428 1.094
H9 2.025 -1.539 -0.241
H10 1.212 -0.555 -1.448
H11 -0.370 -1.951 -0.047
H12 0.149 -1.063 1.370
H13 0.309 1.322 0.035

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.47472.46343.05022.70584.25061.01121.01282.14702.08063.40752.69321.7789
C21.47471.52722.57902.86833.63502.06592.06111.09221.08952.16272.15412.3023
C32.46341.52721.52632.42812.39763.34432.78802.15192.15381.08661.09352.3450
C43.05022.57901.52631.34031.20513.89543.54323.49912.79842.11622.12661.8953
O52.70582.86832.42811.34032.22773.41153.28783.93242.99773.27732.89190.9905
O64.25063.63502.39761.20512.22775.07924.72004.45693.72752.51752.90973.0119
H71.01122.06593.34433.89543.41155.07921.62672.52262.31164.18993.66472.4604
H81.01282.06112.78803.54323.28784.72001.62672.39012.92413.73482.60982.4034
H92.14701.09222.15193.49913.93244.45692.52262.39011.75672.43802.51763.3476
H102.08061.08952.15382.79842.99773.72752.31162.92411.75672.53233.05382.5568
H113.40752.16271.08662.11623.27732.51754.18993.73482.43802.53231.75103.3436
H122.69322.15411.09352.12662.89192.90973.66472.60982.51763.05381.75102.7380
H131.77892.30232.34501.89530.99053.01192.46042.40343.34762.55683.34362.7380

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 110.276 N1 C2 H9 112.676
N1 C2 H10 107.520 C2 N1 H7 111.042
C2 N1 H8 110.533 C2 C3 C4 115.262
C2 C3 H11 110.536 C2 C3 H12 109.446
C3 C2 H9 109.349 C3 C2 H10 109.663
C3 C4 O5 115.633 C3 C4 O6 122.320
C4 C3 H11 106.967 C4 C3 H12 107.386
C4 O5 H13 107.862 O5 C4 O6 122.046
H7 N1 H8 106.972 H9 C2 H10 107.267
H11 C3 H12 106.871
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.349      
2 C -0.112      
3 C -0.222      
4 C 0.331      
5 O -0.301      
6 O -0.341      
7 H 0.156      
8 H 0.145      
9 H 0.104      
10 H 0.119      
11 H 0.127      
12 H 0.112      
13 H 0.232      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.912 0.384 0.103
y 0.384 7.349 -0.008
z 0.103 -0.008 5.951


<r2> (average value of r2) Å2
<r2> 171.987
(<r2>)1/2 13.114