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All results from a given calculation for H2NCH2COOH (Glycine)

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-282.773303
Energy at 298.15K-282.780154
Nuclear repulsion energy178.006090
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 mPW1PW91/3-21G
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' 3543 3383 16.82      
2 A' 3471 3314 0.54      
3 A' 3096 2956 9.98      
4 A' 1817 1735 180.68      
5 A' 1746 1667 21.87      
6 A' 1501 1433 26.83      
7 A' 1410 1346 35.19      
8 A' 1346 1284 1.51      
9 A' 1154 1102 22.98      
10 A' 1113 1063 224.83      
11 A' 856 817 22.20      
12 A' 749 715 298.69      
13 A' 634 605 2.62      
14 A' 461 440 39.65      
15 A' 237 227 14.01      
16 A" 3565 3403 1.97      
17 A" 3138 2996 4.15      
18 A" 1402 1338 0.50      
19 A" 1221 1166 0.79      
20 A" 931 889 5.48      
21 A" 673 642 129.71      
22 A" 517 493 51.01      
23 A" 229 219 56.63      
24 A" 67 63 10.42      

Unscaled Zero Point Vibrational Energy (zpe) 17438.6 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 16646.8 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 mPW1PW91/3-21G
ABC
0.33542 0.12971 0.09669

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.542 0.000
O2 1.187 0.834 0.000
O3 -1.005 1.475 0.000
C4 -0.580 -0.859 0.000
N5 0.433 -1.905 0.000
H6 -0.603 2.383 0.000
H7 -1.228 -0.958 0.877
H8 -1.228 -0.958 -0.877
H9 1.024 -1.852 0.831
H10 1.024 -1.852 -0.831

Atom - Atom Distances (Å)
  C1 O2 O3 C4 N5 H6 H7 H8 H9 H10
C11.22231.37151.51612.48521.93762.12772.12772.73302.7330
O21.22232.28382.44672.84092.36753.13233.13232.81612.8161
O31.37152.28382.37263.67360.99312.59642.59643.98453.9845
C41.51612.44672.37261.45613.24241.09481.09482.06092.0609
N52.48522.84093.67361.45614.41202.10312.10311.02081.0208
H61.93762.36750.99313.24244.41203.51103.51104.61244.6124
H72.12773.13232.59641.09482.10313.51101.75372.42262.9636
H82.12773.13232.59641.09482.10313.51101.75372.96362.4226
H92.73302.81613.98452.06091.02084.61242.42262.96361.6617
H102.73302.81613.98452.06091.02084.61242.96362.42261.6617

picture of Glycine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O3 H6 109.006 C1 C4 N5 113.459
C1 C4 H7 108.077 C1 C4 H8 108.077
O2 C1 O3 123.304 O2 C1 C4 126.291
O3 C1 C4 110.405 C4 N5 H9 111.402
C4 N5 H10 111.402 N5 C4 H7 110.261
N5 C4 H8 110.261 H7 C4 H8 106.429
H9 N5 H10 108.964
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.614      
2 O -0.497      
3 O -0.579      
4 C -0.369      
5 N -0.681      
6 H 0.380      
7 H 0.271      
8 H 0.271      
9 H 0.295      
10 H 0.295      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.495 1.163 0.000 1.264
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.994 -2.728 0.000
y -2.728 -29.006 0.000
z 0.000 0.000 -26.618
Traceless
 xyz
x -4.182 -2.728 0.000
y -2.728 0.300 0.000
z 0.000 0.000 3.882
Polar
3z2-r27.763
x2-y2-2.988
xy-2.728
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> 118.261
(<r2>)1/2 10.875