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: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-284.406576
Energy at 298.15K-284.413408
Nuclear repulsion energy180.060900
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 B1B95/6-311G**
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' 3794 3643 56.22      
2 A' 3529 3388 0.91      
3 A' 3062 2940 17.57      
4 A' 1859 1785 290.62      
5 A' 1678 1611 21.61      
6 A' 1452 1394 15.07      
7 A' 1412 1356 35.21      
8 A' 1312 1260 10.03      
9 A' 1182 1135 131.90      
10 A' 1152 1106 158.01      
11 A' 933 896 123.90      
12 A' 835 802 101.21      
13 A' 643 617 8.21      
14 A' 464 446 34.40      
15 A' 247 237 11.54      
16 A" 3600 3456 2.53      
17 A" 3100 2976 8.61      
18 A" 1384 1329 0.49      
19 A" 1180 1133 1.20      
20 A" 920 883 4.14      
21 A" 670 644 98.68      
22 A" 509 489 33.63      
23 A" 197 189 43.36      
24 A" 45 43 11.27      

Unscaled Zero Point Vibrational Energy (zpe) 17578.7 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 16877.3 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 B1B95/6-311G**
ABC
0.34901 0.13077 0.09826

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.548 0.000
O2 1.172 0.809 0.000
O3 -0.962 1.487 0.000
C4 -0.578 -0.851 0.000
N5 0.396 -1.913 0.000
H6 -0.512 2.342 0.000
H7 -1.235 -0.938 0.869
H8 -1.235 -0.938 -0.869
H9 1.003 -1.811 0.805
H10 1.003 -1.811 -0.805

Atom - Atom Distances (Å)
  C1 O2 O3 C4 N5 H6 H7 H8 H9 H10
C11.20111.34491.51392.49281.86562.11892.11892.68602.6860
O21.20112.23982.41302.83132.27713.09943.09942.74592.7459
O31.34492.23982.36973.66170.96612.59082.59083.92233.9223
C41.51392.41302.36971.44123.19371.09321.09322.01692.0169
N52.49282.83133.66171.44124.35092.08992.08991.01321.0132
H61.86562.27710.96613.19374.35093.46943.46944.49264.4926
H72.11893.09942.59081.09322.08993.46941.73902.40302.9280
H82.11893.09942.59081.09322.08993.46941.73902.92802.4030
H92.68602.74593.92232.01691.01324.49262.40302.92801.6094
H102.68602.74593.92232.01691.01324.49262.92802.40301.6094

picture of Glycine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O3 H6 106.508 C1 C4 N5 115.015
C1 C4 H7 107.638 C1 C4 H8 107.638
O2 C1 O3 123.122 O2 C1 C4 125.036
O3 C1 C4 111.842 C4 N5 H9 109.277
C4 N5 H10 109.277 N5 C4 H7 110.342
N5 C4 H8 110.342 H7 C4 H8 105.375
H9 N5 H10 105.159
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.302      
2 O -0.338      
3 O -0.324      
4 C -0.189      
5 N -0.443      
6 H 0.259      
7 H 0.165      
8 H 0.165      
9 H 0.202      
10 H 0.202      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.727 1.003 0.000 1.239
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.120 -2.413 0.000
y -2.413 -29.559 0.000
z 0.000 0.000 -27.006
Traceless
 xyz
x -3.837 -2.413 0.000
y -2.413 0.003 0.000
z 0.000 0.000 3.834
Polar
3z2-r27.667
x2-y2-2.560
xy-2.413
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.656 -0.304 0.000
y -0.304 5.865 0.000
z 0.000 0.000 3.987


<r2> (average value of r2) Å2
<r2> 116.613
(<r2>)1/2 10.799