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

using model chemistry: mPW1PW91/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 mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-323.693164
Energy at 298.15K-323.702753
Nuclear repulsion energy250.767650
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 mPW1PW91/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 3608 3458 9.20      
2 A 3518 3372 0.64      
3 A 3431 3288 328.40      
4 A 3182 3049 4.18      
5 A 3147 3016 21.77      
6 A 3067 2939 19.03      
7 A 3063 2935 8.53      
8 A 1899 1820 305.55      
9 A 1647 1578 32.38      
10 A 1480 1418 192.81      
11 A 1468 1407 236.50      
12 A 1466 1405 6.10      
13 A 1397 1339 14.26      
14 A 1382 1325 3.16      
15 A 1322 1266 7.83      
16 A 1257 1205 15.32      
17 A 1223 1172 8.15      
18 A 1169 1120 10.96      
19 A 1114 1068 40.11      
20 A 1017 975 1.54      
21 A 944 905 42.59      
22 A 917 879 49.67      
23 A 888 851 102.04      
24 A 820 785 8.41      
25 A 747 716 6.58      
26 A 572 548 4.09      
27 A 540 517 0.72      
28 A 410 393 5.22      
29 A 371 355 18.81      
30 A 314 300 13.82      
31 A 277 265 13.48      
32 A 225 216 0.28      
33 A 84 80 1.24      

Unscaled Zero Point Vibrational Energy (zpe) 23982.4 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 22982.4 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 mPW1PW91/cc-pVDZ
ABC
0.16267 0.11658 0.07237

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.055 1.350 -0.040
C2 1.464 -1.146 -0.189
C3 0.643 0.004 0.370
C4 -0.853 -0.166 0.051
O5 -1.482 0.993 -0.141
O6 -1.402 -1.236 0.015
H7 1.399 1.332 -1.001
H8 1.826 1.689 0.530
H9 1.026 -2.103 0.118
H10 1.469 -1.122 -1.290
H11 0.690 -0.023 1.472
H12 2.504 -1.096 0.164
H13 -0.754 1.660 -0.094

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.53381.46632.43852.56363.56781.02051.01743.45702.80092.07492.85091.8361
C22.53381.52002.52713.64052.87532.60792.94691.09691.10122.14911.09903.5781
C31.46631.52001.53812.39772.41762.05252.06532.15652.16931.10362.17232.2151
C42.43852.52711.53811.33211.20342.90143.29342.69892.84642.10223.48501.8343
O52.56363.64052.39771.33212.23523.02493.44623.99183.80742.88954.51010.9884
O63.56782.87532.41761.20342.23523.93304.38672.58003.15552.82373.91162.9695
H71.02052.60792.05252.90143.02493.93301.62953.63162.47162.90722.91112.3589
H81.01742.94692.06533.29343.44624.38671.62953.89743.36792.26002.89002.6547
H93.45701.09692.15652.69893.99182.58003.63163.89741.77252.50431.78924.1679
H102.80091.10122.16932.84643.80743.15552.47163.36791.77253.07281.78513.7565
H112.07492.14911.10362.10222.88952.82372.90722.26002.50433.07282.48032.7147
H122.85091.09902.17233.48504.51013.91162.91112.89001.78921.78512.48034.2753
H131.83613.57812.21511.83430.98842.96952.35892.65474.16793.75652.71474.2753

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 116.082 N1 C3 C4 108.489
N1 C3 H11 106.841 C2 C3 C4 111.455
C2 C3 H11 108.971 C3 N1 H7 109.951
C3 N1 H8 111.230 C3 C2 H9 109.931
C3 C2 H10 110.692 C3 C2 H12 111.059
C3 C4 O5 113.113 C3 C4 O6 123.273
C4 C3 H11 104.250 C4 O5 H13 103.466
O5 C4 O6 123.587 H7 N1 H8 106.187
H9 C2 H10 107.485 H9 C2 H12 109.129
H10 C2 H12 108.455
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.218      
2 C -0.032      
3 C -0.156      
4 C 0.228      
5 O -0.174      
6 O -0.255      
7 H 0.107      
8 H 0.109      
9 H 0.072      
10 H 0.046      
11 H 0.078      
12 H 0.037      
13 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.783 2.200 0.269 5.271
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.366 -0.061 -0.382
y -0.061 -36.893 -0.192
z -0.382 -0.192 -33.217
Traceless
 xyz
x -3.311 -0.061 -0.382
y -0.061 -1.101 -0.192
z -0.382 -0.192 4.412
Polar
3z2-r28.824
x2-y2-1.473
xy-0.061
xz-0.382
yz-0.192


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.987 0.192 0.082
y 0.192 7.399 -0.052
z 0.082 -0.052 5.269


<r2> (average value of r2) Å2
<r2> 161.529
(<r2>)1/2 12.709