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

using model chemistry: HF/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/cc-pVDZ
 hartrees
Energy at 0K-321.899397
Energy at 298.15K-321.909237
Nuclear repulsion energy251.812034
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/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 4015 3646 218.60      
2 A 3802 3452 10.63      
3 A 3716 3374 4.26      
4 A 3301 2997 12.29      
5 A 3252 2952 40.01      
6 A 3190 2897 13.80      
7 A 3183 2890 27.43      
8 A 2046 1857 381.36      
9 A 1788 1624 35.58      
10 A 1599 1452 43.27      
11 A 1587 1441 2.92      
12 A 1557 1414 381.32      
13 A 1527 1386 3.73      
14 A 1507 1369 70.17      
15 A 1446 1313 67.70      
16 A 1339 1216 5.10      
17 A 1319 1198 11.62      
18 A 1250 1135 12.91      
19 A 1196 1086 68.87      
20 A 1094 994 0.81      
21 A 1014 921 48.58      
22 A 978 888 80.72      
23 A 884 803 5.32      
24 A 812 738 8.95      
25 A 784 712 129.76      
26 A 604 548 12.62      
27 A 571 519 1.86      
28 A 442 402 7.20      
29 A 390 354 13.26      
30 A 315 286 16.23      
31 A 303 275 13.16      
32 A 250 227 1.09      
33 A 77 70 1.61      

Unscaled Zero Point Vibrational Energy (zpe) 25568.7 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 23216.4 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 HF/cc-pVDZ
ABC
0.16603 0.11590 0.07245

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.020 1.384 -0.094
C2 1.515 -1.089 -0.135
C3 0.637 0.052 0.364
C4 -0.840 -0.193 0.045
O5 -1.569 0.902 -0.074
O6 -1.307 -1.276 -0.047
H7 1.280 1.363 -1.067
H8 1.824 1.718 0.408
H9 1.166 -2.043 0.257
H10 1.492 -1.148 -1.226
H11 0.673 0.074 1.458
H12 2.549 -0.932 0.180
H13 -0.984 1.653 -0.026

Atom - Atom Distances (Å)
  N1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13
N12.52241.45972.44282.63443.53471.00761.00473.44732.81282.06022.78802.0231
C22.52241.52412.52643.67212.82962.63362.87561.08801.09302.14441.09203.7114
C31.45971.52411.53062.40462.38962.04452.04592.16312.16761.09452.15812.3109
C42.44282.52641.53061.32121.18302.85543.29842.73712.82252.08693.47111.8528
O52.63443.67212.40461.32122.19413.05283.52334.03313.86022.83914.51530.9536
O63.53472.82962.38961.18302.19413.83384.35572.60723.04012.82933.87772.9469
H71.00762.63362.04452.85543.05283.83381.61223.65522.52402.89912.90322.5087
H81.00472.87562.04593.29843.52334.35571.61223.82023.31522.26452.75622.8416
H93.44731.08802.16312.73714.03312.60723.65523.82021.76242.48281.77494.2847
H102.81281.09302.16762.82253.86023.04012.52403.31521.76243.06031.77223.9257
H112.06022.14441.09452.08692.83912.82932.89912.26452.48283.06032.48242.7273
H122.78801.09202.15813.47114.51533.87772.90322.75621.77491.77222.48244.3818
H132.02313.71142.31091.85280.95362.94692.50872.84164.28473.92572.72734.3818

picture of Alanine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C2 115.408 N1 C3 C4 109.532
N1 C3 H11 106.653 C2 C3 C4 111.599
C2 C3 H11 108.845 C3 N1 H7 110.581
C3 N1 H8 110.884 C3 C2 H9 110.704
C3 C2 H10 110.763 C3 C2 H12 110.066
C3 C4 O5 114.763 C3 C4 O6 122.919
C4 C3 H11 104.069 C4 O5 H13 107.988
O5 C4 O6 122.277 H7 N1 H8 106.487
H9 C2 H10 107.822 H9 C2 H12 109.016
H10 C2 H12 108.400
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.293      
2 C 0.016      
3 C -0.109      
4 C 0.408      
5 O -0.259      
6 O -0.346      
7 H 0.107      
8 H 0.110      
9 H 0.063      
10 H 0.034      
11 H 0.069      
12 H 0.024      
13 H 0.176      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.628 2.517 0.336 5.279
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.201 -0.984 -0.557
y -0.984 -37.894 -0.536
z -0.557 -0.536 -33.380
Traceless
 xyz
x -3.564 -0.984 -0.557
y -0.984 -1.604 -0.536
z -0.557 -0.536 5.168
Polar
3z2-r210.335
x2-y2-1.307
xy-0.984
xz-0.557
yz-0.536


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.305 0.228 0.065
y 0.228 6.871 0.010
z 0.065 0.010 5.064


<r2> (average value of r2) Å2
<r2> 161.171
(<r2>)1/2 12.695