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: HF/daug-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 HF/daug-cc-pVTZ
 hartrees
Energy at 0K-282.955422
Energy at 298.15K-282.962596
HF Energy-282.955422
Nuclear repulsion energy181.306836
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 HF/daug-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' 4097 3706 116.60      
2 A' 3737 3381 5.32      
3 A' 3192 2887 21.89      
4 A' 1991 1801 402.67      
5 A' 1810 1637 21.31      
6 A' 1585 1434 11.31      
7 A' 1547 1400 32.87      
8 A' 1425 1289 23.72      
9 A' 1286 1163 272.18      
10 A' 1216 1100 73.44      
11 A' 999 904 129.08      
12 A' 890 805 96.26      
13 A' 696 630 10.13      
14 A' 503 455 29.82      
15 A' 279 253 10.86      
16 A" 3811 3447 10.19      
17 A" 3225 2917 12.60      
18 A" 1498 1355 0.04      
19 A" 1287 1164 2.51      
20 A" 1000 905 5.46      
21 A" 687 621 102.57      
22 A" 547 495 42.97      
23 A" 240 217 47.50      
24 A" 82 74 5.05      

Unscaled Zero Point Vibrational Energy (zpe) 18814.8 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 17019.8 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 HF/daug-cc-pVTZ
ABC
0.35710 0.13092 0.09895

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.554 0.000
O2 1.147 0.838 0.000
O3 -0.966 1.464 0.000
C4 -0.560 -0.853 0.000
N5 0.413 -1.908 0.000
H6 -0.576 2.326 0.000
H7 -1.207 -0.941 0.865
H8 -1.207 -0.941 -0.865
H9 1.004 -1.853 0.802
H10 1.004 -1.853 -0.802

Atom - Atom Distances (Å)
  C1 O2 O3 C4 N5 H6 H7 H8 H9 H10
C11.18191.32751.51452.49611.86332.10702.10702.72862.7286
O21.18192.20392.40352.84242.27653.07503.07502.81202.8120
O31.32752.20392.35273.64330.94562.56772.56773.94103.9410
C41.51452.40352.35271.43543.17901.08341.08342.02272.0227
N52.49612.84243.64331.43544.34772.07532.07530.99750.9975
H61.86332.27650.94563.17904.34773.43793.43794.53934.5393
H72.10703.07502.56771.08342.07533.43791.73002.39262.9152
H82.10703.07502.56771.08342.07533.43791.73002.91522.3926
H92.72862.81203.94102.02270.99754.53932.39262.91521.6034
H102.72862.81203.94102.02270.99754.53932.91522.39261.6034

picture of Glycine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O3 H6 108.962 C1 C4 N5 115.567
C1 C4 H7 107.235 C1 C4 H8 107.235
O2 C1 O3 122.767 O2 C1 C4 125.644
O3 C1 C4 111.589 C4 N5 H9 111.211
C4 N5 H10 111.211 N5 C4 H7 110.178
N5 C4 H8 110.178 H7 C4 H8 105.962
H9 N5 H10 106.964
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.303      
2 O -1.282      
3 O -1.176      
4 C -0.100      
5 N -0.839      
6 H 0.420      
7 H 0.672      
8 H 0.672      
9 H 0.164      
10 H 0.164      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.056 0.737 0.000 1.287
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.902 -2.950 0.000
y -2.950 -29.961 0.000
z 0.000 0.000 -27.171
Traceless
 xyz
x -4.335 -2.950 0.000
y -2.950 0.075 0.000
z 0.000 0.000 4.260
Polar
3z2-r28.520
x2-y2-2.941
xy-2.950
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.032 -0.160 0.000
y -0.160 6.301 0.000
z 0.000 0.000 4.591


<r2> (average value of r2) Å2
<r2> 116.372
(<r2>)1/2 10.788