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All results from a given calculation for H2NCH2COOH (Glycine)

using model chemistry: CISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/3-21G*
 hartrees
Energy at 0K-281.721524
Energy at 298.15K-281.728497
Nuclear repulsion energy177.692161
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 CISD/3-21G*
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' 3658 3418 25.99      
2 A' 3533 3301 0.29      
3 A' 3157 2950 8.69      
4 A' 1861 1739 188.34      
5 A' 1805 1687 20.26      
6 A' 1573 1470 18.98      
7 A' 1455 1359 29.87      
8 A' 1392 1301 2.48      
9 A' 1171 1094 153.11      
10 A' 1138 1064 132.99      
11 A' 896 837 98.93      
12 A' 810 757 213.37      
13 A' 655 612 7.92      
14 A' 472 441 38.04      
15 A' 250 234 11.56      
16 A" 3620 3383 1.01      
17 A" 3195 2986 5.83      
18 A" 1443 1348 0.36      
19 A" 1256 1174 1.00      
20 A" 962 899 4.58      
21 A" 663 619 142.61      
22 A" 530 495 54.18      
23 A" 236 220 58.74      
24 A" 81 76 9.42      

Unscaled Zero Point Vibrational Energy (zpe) 17906.4 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 16731.7 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 CISD/3-21G*
ABC
0.33582 0.12861 0.09610

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.544 0.000
O2 1.183 0.837 0.000
O3 -1.007 1.482 0.000
C4 -0.583 -0.860 0.000
N5 0.442 -1.914 0.000
H6 -0.619 2.387 0.000
H7 -1.223 -0.963 0.877
H8 -1.223 -0.963 -0.877
H9 1.029 -1.858 0.828
H10 1.029 -1.858 -0.828

Atom - Atom Distances (Å)
  C1 O2 O3 C4 N5 H6 H7 H8 H9 H10
C11.21911.37581.52042.49711.94422.13022.13022.74082.7408
O21.21912.28302.44962.84892.37743.13083.13082.82332.8233
O31.37582.28302.38003.69150.98462.60682.60683.99763.9976
C41.52042.44962.38001.46973.24731.09071.09072.06832.0683
N52.49712.84893.69151.46974.42962.10812.10811.01611.0161
H61.94422.37740.98463.24734.42963.51553.51554.62804.6280
H72.13023.13082.60681.09072.10813.51551.75422.42342.9625
H82.13023.13082.60681.09072.10813.51551.75422.96252.4234
H92.74082.82333.99762.06831.01614.62802.42342.96251.6552
H102.74082.82333.99762.06831.01614.62802.96252.42341.6552

picture of Glycine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O3 H6 109.796 C1 C4 N5 113.246
C1 C4 H7 108.207 C1 C4 H8 108.207
O2 C1 O3 123.125 O2 C1 C4 126.453
O3 C1 C4 110.422 C4 N5 H9 111.303
C4 N5 H10 111.303 N5 C4 H7 109.958
N5 C4 H8 109.958 H7 C4 H8 107.054
H9 N5 H10 109.068
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability