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/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-284.548742
Energy at 298.15K-284.555644
Nuclear repulsion energy179.148714
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/cc-pVTZ
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' 3737 3612 53.12      
2 A' 3498 3381 1.30      
3 A' 3039 2937 17.88      
4 A' 1820 1759 278.84      
5 A' 1677 1621 18.46      
6 A' 1459 1410 14.57      
7 A' 1399 1352 15.39      
8 A' 1312 1268 11.34      
9 A' 1161 1123 114.30      
10 A' 1124 1086 179.06      
11 A' 923 892 139.15      
12 A' 821 794 82.24      
13 A' 638 616 6.72      
14 A' 464 448 28.49      
15 A' 260 251 9.60      
16 A" 3566 3447 3.26      
17 A" 3069 2966 7.57      
18 A" 1387 1341 0.06      
19 A" 1189 1149 1.20      
20 A" 921 890 3.46      
21 A" 660 638 89.37      
22 A" 511 494 30.35      
23 A" 219 211 42.46      
24 A" 62 60 5.18      

Unscaled Zero Point Vibrational Energy (zpe) 17456.6 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 16873.5 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/cc-pVTZ
ABC
0.34618 0.12872 0.09689

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.553 0.000
O2 1.168 0.841 0.000
O3 -0.986 1.480 0.000
C4 -0.564 -0.859 0.000
N5 0.413 -1.927 0.000
H6 -0.559 2.350 0.000
H7 -1.220 -0.951 0.869
H8 -1.220 -0.951 -0.869
H9 1.019 -1.844 0.807
H10 1.019 -1.844 -0.807

Atom - Atom Distances (Å)
  C1 O2 O3 C4 N5 H6 H7 H8 H9 H10
C11.20341.35321.52132.51451.88132.12282.12282.72732.7273
O21.20342.24742.42782.86952.29373.10973.10972.80802.8080
O31.35322.24742.37703.68290.96892.59212.59213.96503.9650
C41.52132.42782.37701.44713.20901.09251.09252.03182.0318
N52.51452.86953.68291.44714.38572.09112.09111.01311.0131
H61.88132.29370.96893.20904.38573.47643.47644.55314.5531
H72.12283.10972.59211.09252.09113.47641.73872.41092.9360
H82.12283.10972.59211.09252.09113.47641.73872.93602.4109
H92.72732.80803.96502.03181.01314.55312.41092.93601.6148
H102.72732.80803.96502.03181.01314.55312.93602.41091.6148

picture of Glycine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O3 H6 107.069 C1 C4 N5 115.769
C1 C4 H7 107.479 C1 C4 H8 107.479
O2 C1 O3 122.956 O2 C1 C4 125.607
O3 C1 C4 111.437 C4 N5 H9 110.098
C4 N5 H10 110.098 N5 C4 H7 110.064
N5 C4 H8 110.064 H7 C4 H8 105.447
H9 N5 H10 105.688
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.278      
2 O -0.306      
3 O -0.261      
4 C -0.141      
5 N -0.297      
6 H 0.215      
7 H 0.121      
8 H 0.121      
9 H 0.135      
10 H 0.135      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.825 0.777 0.000 1.134
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.503 -2.685 0.000
y -2.685 -29.726 0.000
z 0.000 0.000 -27.355
Traceless
 xyz
x -3.963 -2.685 0.000
y -2.685 0.203 0.000
z 0.000 0.000 3.759
Polar
3z2-r27.518
x2-y2-2.777
xy-2.685
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.120 -0.306 0.000
y -0.306 6.545 0.000
z 0.000 0.000 4.430


<r2> (average value of r2) Å2
<r2> 118.209
(<r2>)1/2 10.872