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All results from a given calculation for H2NCH2COOH (Glycine)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-282.742276
Energy at 298.15K-282.749097
Nuclear repulsion energy177.538897
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 B3PW91/3-21G
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' 3507 3371 11.55      
2 A' 3446 3312 0.23      
3 A' 3077 2958 10.89      
4 A' 1798 1728 174.37      
5 A' 1737 1669 20.70      
6 A' 1493 1435 26.18      
7 A' 1397 1343 31.00      
8 A' 1337 1285 1.61      
9 A' 1145 1100 19.64      
10 A' 1098 1056 225.39      
11 A' 844 811 21.20      
12 A' 742 713 296.04      
13 A' 628 604 2.64      
14 A' 456 439 38.51      
15 A' 235 226 13.89      
16 A" 3539 3401 1.16      
17 A" 3118 2997 4.88      
18 A" 1394 1340 0.56      
19 A" 1214 1167 0.74      
20 A" 925 889 4.99      
21 A" 670 644 126.40      
22 A" 513 493 51.14      
23 A" 230 221 56.52      
24 A" 65 63 9.65      

Unscaled Zero Point Vibrational Energy (zpe) 17303.2 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 16631.9 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 B3PW91/3-21G
ABC
0.33357 0.12891 0.09611

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.544 0.000
O2 1.188 0.843 0.000
O3 -1.013 1.475 0.000
C4 -0.577 -0.863 0.000
N5 0.438 -1.911 0.000
H6 -0.611 2.386 0.000
H7 -1.226 -0.964 0.878
H8 -1.226 -0.964 -0.878
H9 1.030 -1.856 0.832
H10 1.030 -1.856 -0.832

Atom - Atom Distances (Å)
  C1 O2 O3 C4 N5 H6 H7 H8 H9 H10
C11.22491.37601.52042.49401.94042.13222.13222.74052.7405
O21.22492.29002.45422.85452.36973.14003.14002.82812.8281
O31.37602.29002.37833.68410.99572.60072.60073.99493.9949
C41.52042.45422.37831.45883.24881.09651.09652.06372.0637
N52.49402.85453.68411.45884.42312.10602.10601.02271.0227
H61.94042.36970.99573.24884.42313.51683.51684.62314.6231
H72.13223.14002.60071.09652.10603.51681.75612.42592.9676
H82.13223.14002.60071.09652.10603.51681.75612.96762.4259
H92.74052.82813.99492.06371.02274.62312.42592.96761.6639
H102.74052.82813.99492.06371.02274.62312.96762.42591.6639

picture of Glycine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O3 H6 108.744 C1 C4 N5 113.657
C1 C4 H7 108.033 C1 C4 H8 108.033
O2 C1 O3 123.294 O2 C1 C4 126.411
O3 C1 C4 110.295 C4 N5 H9 111.313
C4 N5 H10 111.313 N5 C4 H7 110.209
N5 C4 H8 110.209 H7 C4 H8 106.412
H9 N5 H10 108.872
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.598      
2 O -0.489      
3 O -0.568      
4 C -0.364      
5 N -0.671      
6 H 0.377      
7 H 0.267      
8 H 0.267      
9 H 0.292      
10 H 0.292      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.473 1.156 0.000 1.249
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.932 -2.776 0.000
y -2.776 -28.992 0.000
z 0.000 0.000 -26.632
Traceless
 xyz
x -4.120 -2.776 0.000
y -2.776 0.290 0.000
z 0.000 0.000 3.830
Polar
3z2-r27.660
x2-y2-2.940
xy-2.776
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> 118.829
(<r2>)1/2 10.901