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All results from a given calculation for H2NCH2COOH (Glycine)

using model chemistry: HF/3-21G

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/3-21G
 hartrees
Energy at 0K-281.247498
Energy at 298.15K-281.254613
Nuclear repulsion energy179.478842
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/3-21G
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' 3868 3503 66.32      
2 A' 3688 3339 3.13      
3 A' 3241 2935 9.76      
4 A' 1968 1782 262.51      
5 A' 1861 1685 27.92      
6 A' 1619 1466 23.65      
7 A' 1514 1371 36.41      
8 A' 1440 1304 12.08      
9 A' 1222 1106 240.45      
10 A' 1177 1066 81.13      
11 A' 915 829 52.11      
12 A' 795 720 323.01      
13 A' 684 619 3.78      
14 A' 494 447 40.24      
15 A' 261 236 14.28      
16 A" 3780 3423 7.09      
17 A" 3278 2969 5.84      
18 A" 1493 1352 0.02      
19 A" 1306 1183 1.58      
20 A" 996 902 11.53      
21 A" 682 618 161.43      
22 A" 545 494 66.06      
23 A" 244 221 59.07      
24 A" 95 86 8.06      

Unscaled Zero Point Vibrational Energy (zpe) 18583.0 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 16828.7 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/3-21G
ABC
0.34470 0.13045 0.09781

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.542 0.000
O2 1.164 0.843 0.000
O3 -0.997 1.463 0.000
C4 -0.570 -0.854 0.000
N5 0.446 -1.893 0.000
H6 -0.657 2.370 0.000
H7 -1.208 -0.955 0.868
H8 -1.208 -0.955 -0.868
H9 1.017 -1.891 0.825
H10 1.017 -1.891 -0.825

Atom - Atom Distances (Å)
  C1 O2 O3 C4 N5 H6 H7 H8 H9 H10
C11.20191.35671.50872.47641.94262.11082.11082.76362.7636
O21.20192.24762.42642.82892.37693.10033.10032.85952.8595
O31.35672.24762.35633.65350.96872.57782.57783.99823.9982
C41.50872.42642.35631.45363.22591.08221.08222.06782.0678
N52.47642.82893.65351.45364.40432.09102.09101.00361.0036
H61.94262.37690.96873.22594.40433.48063.48064.65234.6523
H72.11083.10032.57781.08222.09103.48061.73692.41452.9491
H82.11083.10032.57781.08222.09103.48061.73692.94912.4145
H92.76362.85953.99822.06781.00364.65232.41452.94911.6509
H102.76362.85953.99822.06781.00364.65232.94912.41451.6509

picture of Glycine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O3 H6 112.231 C1 C4 N5 113.422
C1 C4 H7 107.980 C1 C4 H8 107.980
O2 C1 O3 122.790 O2 C1 C4 126.685
O3 C1 C4 110.524 C4 N5 H9 113.329
C4 N5 H10 113.329 N5 C4 H7 110.233
N5 C4 H8 110.233 H7 C4 H8 106.737
H9 N5 H10 110.661
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.823      
2 O -0.607      
3 O -0.720      
4 C -0.298      
5 N -0.772      
6 H 0.413      
7 H 0.268      
8 H 0.268      
9 H 0.312      
10 H 0.312      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.733 0.902 0.000 1.162
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.169 -2.911 0.000
y -2.911 -29.244 0.000
z 0.000 0.000 -26.638
Traceless
 xyz
x -5.228 -2.911 0.000
y -2.911 0.659 0.000
z 0.000 0.000 4.568
Polar
3z2-r29.137
x2-y2-3.925
xy-2.911
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 117.599
(<r2>)1/2 10.844