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: MP2=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-31G*
 hartrees
Energy at 0K-283.619194
Energy at 298.15K-283.626196
HF Energy-282.826916
Nuclear repulsion energy178.844230
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 MP2=FULL/6-31G*
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' 3691 3478 66.16      
2 A' 3525 3321 1.50      
3 A' 3122 2942 11.51      
4 A' 1854 1747 215.97      
5 A' 1740 1640 22.85      
6 A' 1523 1435 13.28      
7 A' 1453 1369 27.67      
8 A' 1345 1267 13.76      
9 A' 1206 1136 104.87      
10 A' 1167 1099 180.54      
11 A' 994 936 184.15      
12 A' 860 810 65.54      
13 A' 644 606 9.29      
14 A' 472 445 36.20      
15 A' 265 249 9.38      
16 A" 3618 3409 3.73      
17 A" 3175 2991 5.81      
18 A" 1425 1343 0.33      
19 A" 1215 1145 0.70      
20 A" 947 892 2.40      
21 A" 684 644 118.55      
22 A" 523 493 33.22      
23 A" 248 234 57.80      
24 A" 69 65 5.36      

Unscaled Zero Point Vibrational Energy (zpe) 17881.5 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 16847.9 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 MP2=FULL/6-31G*
ABC
0.34115 0.12987 0.09716

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.548 0.000
O2 1.194 0.816 0.000
O3 -0.993 1.474 0.000
C4 -0.575 -0.846 0.000
N5 0.402 -1.906 0.000
H6 -0.523 2.329 0.000
H7 -1.227 -0.932 0.875
H8 -1.227 -0.932 -0.875
H9 1.004 -1.831 0.815
H10 1.004 -1.831 -0.815

Atom - Atom Distances (Å)
  C1 O2 O3 C4 N5 H6 H7 H8 H9 H10
C11.22351.35791.50852.48721.85532.11252.11252.70782.7078
O21.22352.28412.42742.83472.28793.11143.11142.77572.7757
O31.35792.28412.35773.65720.97532.57122.57123.94663.9466
C41.50852.42742.35771.44223.17501.09451.09452.03182.0318
N52.48722.83473.65721.44224.33452.09042.09041.01601.0160
H61.85532.28790.97533.17504.33453.44873.44874.50484.5048
H72.11253.11142.57121.09452.09043.44871.75082.40562.9397
H82.11253.11142.57121.09452.09043.44871.75082.93972.4056
H92.70782.77573.94662.03181.01604.50482.40562.93971.6308
H102.70782.77573.94662.03181.01604.50482.93972.40561.6308

picture of Glycine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O3 H6 104.138 C1 C4 N5 114.885
C1 C4 H7 107.435 C1 C4 H8 107.435
O2 C1 O3 124.380 O2 C1 C4 125.053
O3 C1 C4 110.567 C4 N5 H9 110.285
C4 N5 H10 110.285 N5 C4 H7 110.230
N5 C4 H8 110.230 H7 C4 H8 106.219
H9 N5 H10 106.752
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability