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

using model chemistry: HF/aug-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 HF/aug-cc-pVDZ
 hartrees
Energy at 0K-321.923353
Energy at 298.15K-321.933100
Nuclear repulsion energy251.438998
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 HF/aug-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 4028 3668 196.41      
2 A 3818 3477 12.05      
3 A 3728 3394 4.76      
4 A 3286 2992 14.47      
5 A 3238 2948 43.19      
6 A 3193 2907 13.59      
7 A 3172 2889 22.85      
8 A 2002 1823 388.32      
9 A 1784 1625 36.56      
10 A 1598 1455 20.83      
11 A 1587 1445 2.72      
12 A 1536 1399 334.95      
13 A 1525 1389 5.07      
14 A 1500 1366 96.95      
15 A 1435 1306 64.84      
16 A 1331 1212 12.17      
17 A 1313 1196 6.90      
18 A 1247 1135 14.11      
19 A 1180 1074 58.69      
20 A 1092 994 0.41      
21 A 1008 918 31.11      
22 A 952 866 104.59      
23 A 878 799 4.90      
24 A 806 734 7.78      
25 A 781 711 121.78      
26 A 598 544 11.37      
27 A 568 517 1.91      
28 A 439 400 6.79      
29 A 377 343 9.09      
30 A 298 271 17.14      
31 A 289 263 15.45      
32 A 246 224 1.12      
33 A 63 58 1.49      

Unscaled Zero Point Vibrational Energy (zpe) 25446.4 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 23171.5 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 HF/aug-cc-pVDZ
ABC
0.16579 0.11509 0.07222

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.059 1.365 -0.060
C2 1.490 -1.115 -0.172
C3 0.639 0.032 0.367
C4 -0.845 -0.177 0.049
O5 -1.548 0.931 -0.118
O6 -1.345 -1.251 -0.003
H7 1.368 1.362 -1.015
H8 1.819 1.704 0.497
H9 1.125 -2.070 0.195
H10 1.459 -1.138 -1.262
H11 0.679 0.020 1.458
H12 2.527 -0.985 0.141
H13 -0.955 1.674 -0.083

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.51951.46122.45282.64413.55371.00361.00103.44502.80512.06312.77782.0380
C22.51951.52632.52613.66392.84422.61942.91631.08621.09142.14511.09033.7101
C31.46121.52631.53242.41462.39222.05152.05072.16432.16671.09192.15572.3323
C42.45282.52611.53241.32361.18572.89793.29202.73592.81972.08513.46821.8590
O52.64413.66392.41461.32362.19483.08143.50894.03173.82582.87684.51070.9510
O63.55372.84422.39221.18572.19483.90064.35862.61053.07672.80173.88402.9518
H71.00362.61942.05152.89793.08143.90061.61423.64712.51352.89652.86152.5225
H81.00102.91632.05073.29203.50894.35861.61423.84973.36192.24932.80402.8337
H93.44501.08622.16432.73594.03172.61053.64713.84971.76192.48241.77314.2919
H102.80511.09142.16672.81973.82583.07672.51353.36191.76193.05751.77003.8891
H112.06312.14511.09192.08512.87682.80172.89652.24932.48243.05752.48122.7890
H122.77781.09032.15573.46824.51073.88402.86152.80401.77311.77002.48124.3866
H132.03803.71012.33231.85900.95102.95182.52252.83374.29193.88912.78904.3866

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 114.973 N1 C3 C4 110.023
N1 C3 H11 106.933 C2 C3 C4 111.361
C2 C3 H11 108.901 C3 N1 H7 111.325
C3 N1 H8 111.422 C3 C2 H9 110.747
C3 C2 H10 110.630 C3 C2 H12 109.827
C3 C4 O5 115.245 C3 C4 O6 122.799
C4 C3 H11 103.962 C4 O5 H13 108.522
O5 C4 O6 121.912 H7 N1 H8 107.269
H9 C2 H10 108.019 H9 C2 H12 109.106
H10 C2 H12 108.452
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.426      
2 C 0.767      
3 C -0.283      
4 C 1.098      
5 O -0.628      
6 O -0.717      
7 H 0.038      
8 H 0.026      
9 H -0.038      
10 H -0.039      
11 H 0.029      
12 H -0.042      
13 H 0.215      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.818 2.461 0.337 5.421
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.978 -1.180 -0.355
y -1.180 -38.411 -0.304
z -0.355 -0.304 -33.804
Traceless
 xyz
x -3.871 -1.180 -0.355
y -1.180 -1.520 -0.304
z -0.355 -0.304 5.390
Polar
3z2-r210.780
x2-y2-1.567
xy-1.180
xz-0.355
yz-0.304


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.677 0.174 0.035
y 0.174 8.096 -0.003
z 0.035 -0.003 6.069


<r2> (average value of r2) Å2
<r2> 162.132
(<r2>)1/2 12.733