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: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-56.093063
Energy at 298.15K-56.099790
Nuclear repulsion energy98.240796
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 B3LYP/CEP-121G
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' 3614 3521 19.31      
2 A' 3504 3415 0.74      
3 A' 3029 2952 20.04      
4 A' 1718 1674 40.67      
5 A' 1687 1644 229.77      
6 A' 1479 1441 30.14      
7 A' 1388 1353 6.28      
8 A' 1282 1249 20.54      
9 A' 1151 1122 0.80      
10 A' 1066 1039 292.21      
11 A' 830 809 34.32      
12 A' 702 684 310.22      
13 A' 601 586 2.60      
14 A' 439 428 46.11      
15 A' 241 235 15.48      
16 A" 3623 3530 0.97      
17 A" 3079 3001 13.65      
18 A" 1368 1333 0.02      
19 A" 1187 1157 0.05      
20 A" 908 885 4.03      
21 A" 632 616 149.11      
22 A" 499 487 41.33      
23 A" 220 214 52.73      
24 A" 55 54 5.09      

Unscaled Zero Point Vibrational Energy (zpe) 17150.9 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 16713.6 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 B3LYP/CEP-121G
ABC
0.32737 0.12343 0.09255

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.561 0.000
O2 1.202 0.894 0.000
O3 -1.034 1.506 0.000
C4 -0.558 -0.877 0.000
N5 0.452 -1.935 0.000
H6 -0.669 2.421 0.000
H7 -1.211 -0.977 0.876
H8 -1.211 -0.977 -0.876
H9 1.026 -1.964 0.838
H10 1.026 -1.964 -0.838

Atom - Atom Distances (Å)
  C1 O2 O3 C4 N5 H6 H7 H8 H9 H10
C11.24681.40041.54262.53631.97602.14452.14452.85212.8521
O21.24682.31772.49612.92582.41443.17603.17602.98372.9837
O31.40042.31772.43033.74770.98472.63862.63864.12184.1218
C41.54262.49612.43031.46213.29961.09741.09742.09592.0959
N52.53632.92583.74771.46214.49702.11002.11001.01641.0164
H61.97602.41440.98473.29964.49703.55003.55004.77524.7752
H72.14453.17602.63861.09742.11003.55001.75162.44602.9866
H82.14453.17602.63861.09742.11003.55001.75162.98662.4460
H92.85212.98374.12182.09591.01644.77522.44602.98661.6768
H102.85212.98374.12182.09591.01644.77522.98662.44601.6768

picture of Glycine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O3 H6 110.671 C1 C4 N5 115.128
C1 C4 H7 107.446 C1 C4 H8 107.446
O2 C1 O3 122.104 O2 C1 C4 126.654
O3 C1 C4 111.242 C4 N5 H9 114.280
C4 N5 H10 114.280 N5 C4 H7 110.236
N5 C4 H8 110.236 H7 C4 H8 105.896
H9 N5 H10 111.154
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.059      
2 O -0.155      
3 O -0.366      
4 C -0.337      
5 N -0.514      
6 H 0.375      
7 H 0.194      
8 H 0.194      
9 H 0.275      
10 H 0.275      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.696 0.542 0.000 0.882
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.043 -3.561 0.000
y -3.561 -29.374 0.000
z 0.000 0.000 -27.320
Traceless
 xyz
x -5.696 -3.561 0.000
y -3.561 1.308 0.000
z 0.000 0.000 4.389
Polar
3z2-r28.778
x2-y2-4.669
xy-3.561
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> 0.000
(<r2>)1/2 0.000