return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for H2NCH2COOH (Glycine)

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-282.917278
Energy at 298.15K-282.924508
Nuclear repulsion energy181.301689
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/6-311G**
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' 4118 3741 113.64      
2 A' 3736 3394 2.85      
3 A' 3200 2907 22.04      
4 A' 2015 1831 405.55      
5 A' 1816 1650 22.87      
6 A' 1586 1441 10.98      
7 A' 1553 1411 38.04      
8 A' 1431 1300 15.37      
9 A' 1297 1178 301.53      
10 A' 1221 1110 55.23      
11 A' 1024 930 163.36      
12 A' 902 820 86.22      
13 A' 701 636 14.40      
14 A' 504 458 31.38      
15 A' 280 255 10.56      
16 A" 3807 3459 5.27      
17 A" 3235 2939 17.37      
18 A" 1501 1364 0.05      
19 A" 1286 1168 2.72      
20 A" 1004 912 6.11      
21 A" 696 633 120.56      
22 A" 549 498 43.33      
23 A" 255 232 52.21      
24 A" 83 75 5.25      

Unscaled Zero Point Vibrational Energy (zpe) 18899.3 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 17170.0 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 HF/6-311G**
ABC
0.35687 0.13119 0.09909

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.552 0.000
O2 1.149 0.828 0.000
O3 -0.961 1.469 0.000
C4 -0.567 -0.852 0.000
N5 0.411 -1.908 0.000
H6 -0.561 2.326 0.000
H7 -1.214 -0.940 0.866
H8 -1.214 -0.940 -0.866
H9 1.005 -1.834 0.801
H10 1.005 -1.834 -0.801

Atom - Atom Distances (Å)
  C1 O2 O3 C4 N5 H6 H7 H8 H9 H10
C11.18191.32851.51412.49381.86092.11012.11012.70992.7099
O21.18192.20562.40142.83362.27393.07633.07632.78322.7832
O31.32852.20562.35453.64490.94582.57322.57323.92653.9265
C41.51412.40142.35451.43873.17831.08521.08522.01902.0190
N52.49382.83363.64491.43874.34412.08002.08001.00001.0000
H61.86092.27390.94583.17834.34413.44233.44234.51684.5168
H72.11013.07632.57321.08522.08003.44231.73292.39352.9160
H82.11013.07632.57321.08522.08003.44231.73292.91602.3935
H92.70992.78323.92652.01901.00004.51682.39352.91601.6012
H102.70992.78323.92652.01901.00004.51682.91602.39351.6012

picture of Glycine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O3 H6 108.648 C1 C4 N5 115.223
C1 C4 H7 107.394 C1 C4 H8 107.394
O2 C1 O3 122.835 O2 C1 C4 125.485
O3 C1 C4 111.680 C4 N5 H9 110.471
C4 N5 H10 110.471 N5 C4 H7 110.210
N5 C4 H8 110.210 H7 C4 H8 105.955
H9 N5 H10 106.368
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.472      
2 O -0.450      
3 O -0.414      
4 C -0.056      
5 N -0.473      
6 H 0.273      
7 H 0.132      
8 H 0.132      
9 H 0.192      
10 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.915 0.884 0.000 1.272
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.756 -2.733 0.000
y -2.733 -29.760 0.000
z 0.000 0.000 -26.884
Traceless
 xyz
x -4.434 -2.733 0.000
y -2.733 0.060 0.000
z 0.000 0.000 4.374
Polar
3z2-r28.749
x2-y2-2.996
xy-2.733
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.186 -0.206 0.000
y -0.206 5.042 0.000
z 0.000 0.000 3.767


<r2> (average value of r2) Å2
<r2> 116.062
(<r2>)1/2 10.773