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

using model chemistry: CISD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at CISD/6-311G**
 hartrees
Energy at 0K-322.810414
Energy at 298.15K-322.820462
Nuclear repulsion energy248.984562
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 CISD/6-311G**
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 3759 3759 8.53      
2 A 3721 3721 545.75      
3 A 3674 3674 32.10      
4 A 3251 3251 9.06      
5 A 3208 3208 27.45      
6 A 3157 3157 7.57      
7 A 3146 3146 52.76      
8 A 1978 1978 428.39      
9 A 1729 1729 37.00      
10 A 1594 1594 5.89      
11 A 1556 1556 338.77      
12 A 1540 1540 6.80      
13 A 1506 1506 6.09      
14 A 1453 1453 3.33      
15 A 1391 1391 7.45      
16 A 1372 1372 18.65      
17 A 1324 1324 61.36      
18 A 1211 1211 7.50      
19 A 1153 1153 9.08      
20 A 1082 1082 15.72      
21 A 1030 1030 24.74      
22 A 982 982 74.20      
23 A 941 941 41.61      
24 A 919 919 51.52      
25 A 864 864 22.26      
26 A 742 742 13.19      
27 A 610 610 5.64      
28 A 514 514 10.04      
29 A 420 420 16.54      
30 A 344 344 7.68      
31 A 282 282 4.55      
32 A 211 211 4.86      
33 A 87 87 0.68      

Unscaled Zero Point Vibrational Energy (zpe) 25374.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25374.5 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 CISD/6-311G**
ABC
0.24405 0.08400 0.06685

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.921 0.565 0.135
C2 1.349 -0.682 -0.376
C3 0.020 -0.972 0.313
C4 -1.085 0.035 0.028
O5 -0.704 1.306 -0.040
O6 -2.220 -0.290 -0.105
H7 2.683 0.877 -0.440
H8 2.284 0.432 1.064
H9 2.014 -1.535 -0.248
H10 1.185 -0.557 -1.443
H11 -0.358 -1.945 0.023
H12 0.170 -0.993 1.394
H13 0.254 1.358 0.071

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N11.46382.45153.05412.73334.23551.00461.00602.13652.07183.39252.66041.8478
C21.46381.52532.56902.87693.60062.05272.04651.08971.08712.16102.14912.3579
C32.45151.52531.52192.41622.37843.32892.76762.14712.14851.08371.09072.3544
C43.05412.56901.52191.32821.18853.88923.54623.48502.76862.10962.12041.8821
O52.73332.87692.41621.32822.20243.43763.30263.93723.00073.27012.84670.9653
O64.23553.60062.37841.18852.20245.05164.70854.41593.66812.49442.90702.9777
H71.00462.05273.32893.88923.43765.05161.61902.51022.30384.17483.62992.5292
H81.00602.04652.76763.54623.30264.70851.61902.37982.91093.70342.57032.4421
H92.13651.08972.14713.48503.93724.41592.51022.37981.75342.42282.52783.4016
H102.07181.08712.14852.76863.00073.66812.30382.91091.75342.54123.04442.6127
H113.39252.16101.08372.10963.27012.49444.17483.70342.42282.54121.75083.3598
H122.66042.14911.09072.12042.84672.90703.62992.57032.52783.04441.75082.6987
H131.84782.35792.35441.88210.96532.97772.52922.44213.40162.61273.35982.6987

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 110.183 N1 C2 H9 112.770
N1 C2 H10 107.709 C2 N1 H7 111.158
C2 N1 H8 110.547 C2 C3 C4 114.927
C2 C3 H11 110.708 C2 C3 H12 109.352
C3 C2 H9 109.251 C3 C2 H10 109.515
C3 C4 O5 115.771 C3 C4 O6 122.202
C4 C3 H11 106.916 C4 C3 H12 107.356
C4 O5 H13 109.278 O5 C4 O6 122.017
H7 N1 H8 107.269 H9 C2 H10 107.325
H11 C3 H12 107.259
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability