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: CCD/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 CCD/6-31G**
 hartrees
Energy at 0K-283.668880
Energy at 298.15K-283.675917
HF Energy-282.845780
Nuclear repulsion energy179.302939
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 CCD/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3876 3634 58.39      
2 A' 3586 3362 0.53      
3 A' 3137 2941 14.89      
4 A' 1915 1796 255.39      
5 A' 1729 1621 20.91      
6 A' 1526 1431 8.25      
7 A' 1474 1382 33.03      
8 A' 1363 1278 13.14      
9 A' 1221 1144 212.79      
10 A' 1180 1106 79.91      
11 A' 994 932 158.62      
12 A' 868 813 70.77      
13 A' 653 612 11.88      
14 A' 476 446 34.07      
15 A' 267 251 9.27      
16 A" 3669 3440 1.27      
17 A" 3185 2986 9.65      
18 A" 1429 1339 0.29      
19 A" 1218 1142 1.03      
20 A" 948 889 2.13      
21 A" 673 631 116.88      
22 A" 521 489 31.97      
23 A" 249 233 53.93      
24 A" 72 67 5.03      

Unscaled Zero Point Vibrational Energy (zpe) 18113.7 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 16983.4 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 CCD/6-31G**
ABC
0.34451 0.12991 0.09743

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.549 0.000
O2 1.179 0.817 0.000
O3 -0.973 1.488 0.000
C4 -0.581 -0.854 0.000
N5 0.402 -1.921 0.000
H6 -0.526 2.345 0.000
H7 -1.231 -0.945 0.872
H8 -1.231 -0.945 -0.872
H9 1.009 -1.807 0.804
H10 1.009 -1.807 -0.804

Atom - Atom Distances (Å)
  C1 O2 O3 C4 N5 H6 H7 H8 H9 H10
C11.20921.35271.51832.50251.87242.12272.12272.68522.6852
O21.20922.25452.42712.84672.29013.11013.11012.74932.7493
O31.35272.25452.37473.67630.96692.59702.59703.92803.9280
C41.51832.42712.37471.45113.20001.09151.09152.02022.0202
N52.50252.84673.67631.45114.36672.09332.09331.01391.0139
H61.87242.29010.96693.20004.36673.47583.47584.49914.4991
H72.12273.11012.59701.09152.09333.47581.74442.40102.9274
H82.12273.11012.59701.09152.09333.47581.74442.92742.4010
H92.68522.74933.92802.02021.01394.49912.40102.92741.6079
H102.68522.74933.92802.02021.01394.49912.92742.40101.6079

picture of Glycine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O3 H6 106.457 C1 C4 N5 114.849
C1 C4 H7 107.728 C1 C4 H8 107.728
O2 C1 O3 123.184 O2 C1 C4 125.337
O3 C1 C4 111.478 C4 N5 H9 108.794
C4 N5 H10 108.794 N5 C4 H7 110.028
N5 C4 H8 110.028 H7 C4 H8 106.082
H9 N5 H10 104.929
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability