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

using model chemistry: B1B95/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 B1B95/cc-pVDZ
 hartrees
Energy at 0K-323.641236
Energy at 298.15K-323.650803
Nuclear repulsion energy250.897164
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-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 3593 3454 7.69      
2 A 3504 3368 0.76      
3 A 3432 3299 310.19      
4 A 3174 3051 4.48      
5 A 3140 3018 22.45      
6 A 3059 2940 24.27      
7 A 3055 2937 3.58      
8 A 1893 1819 295.86      
9 A 1636 1572 30.78      
10 A 1469 1412 102.27      
11 A 1458 1402 6.27      
12 A 1452 1396 324.69      
13 A 1388 1334 12.06      
14 A 1375 1321 3.74      
15 A 1312 1261 10.48      
16 A 1248 1200 12.62      
17 A 1213 1166 7.84      
18 A 1164 1119 10.68      
19 A 1110 1067 37.46      
20 A 1009 970 1.09      
21 A 940 903 30.48      
22 A 904 869 66.73      
23 A 875 841 94.79      
24 A 814 783 9.37      
25 A 740 711 6.47      
26 A 564 542 4.66      
27 A 536 515 0.60      
28 A 402 387 5.58      
29 A 366 352 17.60      
30 A 310 298 12.77      
31 A 290 279 13.83      
32 A 229 220 0.99      
33 A 84 81 1.30      

Unscaled Zero Point Vibrational Energy (zpe) 23867.6 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 22941.5 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 B1B95/cc-pVDZ
ABC
0.16271 0.11693 0.07244

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.055 1.353 -0.050
C2 1.461 -1.144 -0.180
C3 0.643 0.011 0.369
C4 -0.849 -0.167 0.051
O5 -1.490 0.988 -0.130
O6 -1.390 -1.241 0.005
H7 1.385 1.328 -1.015
H8 1.839 1.685 0.507
H9 1.011 -2.096 0.125
H10 1.472 -1.122 -1.281
H11 0.690 -0.007 1.471
H12 2.498 -1.102 0.179
H13 -0.769 1.662 -0.081

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.53321.46502.43812.57153.56491.02071.01753.45362.79552.07252.85721.8499
C22.53321.51812.51953.64112.85942.60992.93601.09641.10062.14771.09833.5858
C31.46501.51811.53622.39862.41532.04942.06242.15242.16611.10292.17162.2188
C42.43812.51951.53621.33291.20362.89153.29612.68142.84192.10003.47821.8350
O52.57153.64112.39861.33292.23543.02683.45983.97913.81462.88174.51320.9876
O63.56492.85942.41531.20362.23543.91654.38672.55233.14052.82793.89512.9697
H71.02072.60992.04942.89153.02683.91651.62813.62772.46542.90602.92732.3715
H81.01752.93602.06243.29613.45984.38671.62813.88953.34822.26172.88302.6735
H93.45361.09642.15242.68143.97912.55233.62773.88951.77142.50491.78934.1634
H102.79551.10062.16612.84193.81463.14052.46543.34821.77143.06991.78453.7701
H112.07252.14771.10292.10002.88172.82792.90602.26172.50493.06992.47712.7061
H122.85721.09832.17163.47824.51323.89512.92732.88301.78931.78452.47714.2875
H131.84993.58582.21881.83500.98762.96972.37152.67354.16343.77012.70614.2875

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 116.237 N1 C3 C4 108.634
N1 C3 H11 106.777 C2 C3 C4 111.161
C2 C3 H11 109.025 C3 N1 H7 109.777
C3 N1 H8 111.076 C3 C2 H9 109.772
C3 C2 H10 110.603 C3 C2 H12 111.183
C3 C4 O5 113.253 C3 C4 O6 123.206
C4 C3 H11 104.248 C4 O5 H13 103.516
O5 C4 O6 123.514 H7 N1 H8 106.025
H9 C2 H10 107.473 H9 C2 H12 109.232
H10 C2 H12 108.488
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.198      
2 C 0.005      
3 C -0.152      
4 C 0.206      
5 O -0.163      
6 O -0.242      
7 H 0.101      
8 H 0.103      
9 H 0.060      
10 H 0.034      
11 H 0.067      
12 H 0.024      
13 H 0.155      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.683 2.198 0.263 5.180
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.274 -0.076 -0.405
y -0.076 -36.889 -0.246
z -0.405 -0.246 -33.254
Traceless
 xyz
x -3.202 -0.076 -0.405
y -0.076 -1.125 -0.246
z -0.405 -0.246 4.327
Polar
3z2-r28.655
x2-y2-1.385
xy-0.076
xz-0.405
yz-0.246


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.032 0.178 0.083
y 0.178 7.452 -0.044
z 0.083 -0.044 5.301


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