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All results from a given calculation for CH3CH(NH2)COOH (Alanine)

using model chemistry: CCD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at CCD/cc-pVDZ
 hartrees
Energy at 0K-322.887397
Energy at 298.15K-322.897012
Nuclear repulsion energy249.545089
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 CCD/cc-pVDZ
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 3519 226.10      
2 A 3606 3450 5.40      
3 A 3514 3362 1.83      
4 A 3187 3049 7.91      
5 A 3152 3016 25.47      
6 A 3074 2941 14.20      
7 A 3071 2938 15.40      
8 A 1934 1850 267.07      
9 A 1669 1597 30.07      
10 A 1502 1437 70.91      
11 A 1492 1427 2.64      
12 A 1480 1416 345.68      
13 A 1426 1364 5.99      
14 A 1413 1351 11.93      
15 A 1356 1297 20.65      
16 A 1271 1216 11.35      
17 A 1243 1189 11.22      
18 A 1182 1131 6.51      
19 A 1134 1085 53.94      
20 A 1030 986 0.65      
21 A 966 924 70.04      
22 A 930 890 38.58      
23 A 838 802 26.54      
24 A 813 778 70.22      
25 A 749 717 12.21      
26 A 568 544 8.39      
27 A 542 519 0.88      
28 A 416 398 6.40      
29 A 370 354 18.15      
30 A 306 293 13.06      
31 A 286 273 13.38      
32 A 238 227 1.02      
33 A 80 77 1.33      

Unscaled Zero Point Vibrational Energy (zpe) 24257.9 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 23207.5 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 CCD/cc-pVDZ
ABC
0.16193 0.11508 0.07150

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.025 1.389 -0.086
C2 1.510 -1.109 -0.146
C3 0.643 0.040 0.374
C4 -0.847 -0.190 0.049
O5 -1.554 0.943 -0.085
O6 -1.340 -1.284 -0.039
H7 1.298 1.338 -1.073
H8 1.861 1.700 0.411
H9 1.139 -2.073 0.233
H10 1.478 -1.146 -1.251
H11 0.691 0.059 1.481
H12 2.560 -0.975 0.170
H13 -0.887 1.656 -0.035

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.54481.47532.45262.61683.56941.02481.02163.47862.82592.08252.82971.9310
C22.54481.53042.53803.68842.85822.62462.88481.10141.10582.16391.10433.6609
C31.47531.53041.54302.41962.42052.05112.05902.17522.17811.10802.17812.2627
C42.45262.53801.54301.34211.20342.86273.32242.74332.83042.11653.49861.8481
O52.61683.68842.41961.34212.23833.04363.53264.05603.86212.87654.54600.9772
O63.56942.85822.42051.20342.23833.86074.39952.61573.07112.87043.91802.9748
H71.02482.62462.05112.86273.04363.86071.62803.65622.49662.92002.91292.4399
H81.02162.88482.05903.32243.53264.39951.62803.84603.31792.28192.77502.7841
H93.47861.10142.17522.74334.05602.61573.65623.84601.78302.51051.79754.2523
H102.82591.10582.17812.83043.86213.07112.49663.31791.78303.08781.79433.8629
H112.08252.16391.10802.11652.87652.87042.92002.28192.51053.08782.50582.7089
H122.82971.10432.17813.49864.54603.91802.91292.77501.79751.79432.50584.3407
H131.93103.66092.26271.84810.97722.97482.43992.78414.25233.86292.70894.3407

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.683 N1 C3 C4 108.676
N1 C3 H11 106.575 C2 C3 C4 111.336
C2 C3 H11 109.154 C3 N1 H7 108.911
C3 N1 H8 109.770 C3 C2 H9 110.414
C3 C2 H10 110.392 C3 C2 H12 110.481
C3 C4 O5 113.810 C3 C4 O6 123.130
C4 C3 H11 104.755 C4 O5 H13 104.558
O5 C4 O6 123.027 H7 N1 H8 105.410
H9 C2 H10 107.762 H9 C2 H12 109.160
H10 C2 H12 108.564
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability