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

using model chemistry: B1B95/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 B1B95/cc-pVTZ
 hartrees
Energy at 0K-323.740095
Energy at 298.15K-323.749594
Nuclear repulsion energy251.422809
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 B1B95/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 3621 3466 9.85      
2 A 3532 3380 0.40      
3 A 3475 3326 281.11      
4 A 3155 3020 5.64      
5 A 3122 2988 24.67      
6 A 3059 2928 14.70      
7 A 3049 2918 10.67      
8 A 1871 1790 308.92      
9 A 1652 1582 33.04      
10 A 1495 1430 15.72      
11 A 1486 1422 2.08      
12 A 1428 1367 410.88      
13 A 1402 1342 6.25      
14 A 1385 1326 4.77      
15 A 1309 1253 10.13      
16 A 1243 1189 14.77      
17 A 1220 1168 7.53      
18 A 1158 1108 9.24      
19 A 1096 1049 38.53      
20 A 1015 971 0.48      
21 A 941 900 25.49      
22 A 889 851 69.01      
23 A 857 820 108.12      
24 A 811 777 6.30      
25 A 741 709 7.42      
26 A 567 543 3.79      
27 A 532 509 1.18      
28 A 398 381 5.16      
29 A 357 342 12.93      
30 A 288 276 10.46      
31 A 285 273 16.77      
32 A 230 220 0.95      
33 A 70 67 0.94      

Unscaled Zero Point Vibrational Energy (zpe) 23869.0 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 22845.0 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 B1B95/cc-pVTZ
ABC
0.16396 0.11637 0.07281

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.103 1.318 -0.010
C2 1.424 -1.170 -0.222
C3 0.640 -0.016 0.373
C4 -0.855 -0.147 0.055
O5 -1.453 1.018 -0.183
O6 -1.433 -1.196 0.055
H7 1.500 1.305 -0.940
H8 1.816 1.661 0.616
H9 0.960 -2.115 0.049
H10 1.432 -1.104 -1.310
H11 0.689 -0.075 1.462
H12 2.453 -1.161 0.132
H13 -0.728 1.677 -0.145

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.51781.46322.44632.57973.57221.01131.00853.43662.76862.06912.82671.8707
C22.51781.51682.51313.61452.87042.57842.97801.08641.09062.13881.08853.5696
C31.46321.51681.53372.39952.40672.05152.06232.14812.15511.09222.15832.2370
C42.44632.51311.53371.33071.19832.93983.27362.67752.82992.09063.46091.8392
O52.57973.61452.39951.33072.22693.06193.42633.96153.75432.91404.48390.9809
O63.57222.87042.40671.19832.22693.98114.36292.56403.17502.78253.88722.9654
H71.01132.57842.05152.93983.06193.98111.62713.60062.43802.88702.85322.3945
H81.00852.97802.06233.27363.42634.36291.62713.91253.39102.23622.93302.6553
H93.43661.08642.14812.67753.96152.56403.60063.91251.75822.49641.77314.1554
H102.76861.09062.15512.82993.75433.17502.43803.39101.75823.04911.76813.7090
H112.06912.13881.09222.09062.91402.78252.88702.23622.49643.04912.46182.7679
H122.82671.08852.15833.46094.48393.88722.85322.93301.77311.76812.46184.2721
H131.87073.56962.23701.83920.98092.96542.39452.65534.15543.70902.76794.2721

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.309 N1 C3 C4 109.405
N1 C3 H11 107.243 C2 C3 C4 110.936
C2 C3 H11 109.039 C3 N1 H7 110.674
C3 N1 H8 111.782 C3 C2 H9 110.114
C3 C2 H10 110.421 C3 C2 H12 110.804
C3 C4 O5 113.601 C3 C4 O6 123.036
C4 C3 H11 104.264 C4 O5 H13 104.412
O5 C4 O6 123.336 H7 N1 H8 107.329
H9 C2 H10 107.728 H9 C2 H12 109.229
H10 C2 H12 108.471
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.356      
2 C -0.348      
3 C -0.090      
4 C 0.283      
5 O -0.232      
6 O -0.303      
7 H 0.160      
8 H 0.163      
9 H 0.139      
10 H 0.114      
11 H 0.140      
12 H 0.114      
13 H 0.217      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.843 2.094 0.312 5.286
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.005 -0.264 -0.198
y -0.264 -37.294 0.093
z -0.198 0.093 -33.520
Traceless
 xyz
x -3.598 -0.264 -0.198
y -0.264 -1.031 0.093
z -0.198 0.093 4.629
Polar
3z2-r29.258
x2-y2-1.711
xy-0.264
xz-0.198
yz0.093


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.889 0.165 0.065
y 0.165 8.178 -0.063
z 0.065 -0.063 5.954


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