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 C2H4O3 (1,2,3-trioxolane)

using model chemistry: LSDA/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/6-31+G**
 hartrees
Energy at 0K-302.594863
Energy at 298.15K-302.601322
HF Energy-302.594863
Nuclear repulsion energy194.183379
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 LSDA/6-31+G**
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' 3072 3026 11.25      
2 A' 2983 2939 46.06      
3 A' 1443 1422 1.04      
4 A' 1280 1261 0.32      
5 A' 1199 1181 1.22      
6 A' 1001 986 35.09      
7 A' 945 931 1.88      
8 A' 905 892 1.28      
9 A' 838 825 0.31      
10 A' 705 695 0.64      
11 A' 441 434 5.42      
12 A" 3058 3012 0.04      
13 A" 2975 2931 15.89      
14 A" 1427 1405 2.90      
15 A" 1285 1266 3.75      
16 A" 1163 1145 0.05      
17 A" 1112 1095 0.06      
18 A" 1036 1020 0.23      
19 A" 731 720 17.06      
20 A" 597 588 64.02      
21 A" 123 121 6.99      

Unscaled Zero Point Vibrational Energy (zpe) 14159.2 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 13946.8 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 LSDA/6-31+G**
ABC
0.27790 0.25503 0.14981

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.569 -1.032 0.000
O2 0.141 -0.489 1.093
O3 0.141 -0.489 -1.093
C4 0.141 0.889 0.773
C5 0.141 0.889 -0.773
H6 1.057 1.311 1.215
H7 1.057 1.311 -1.215
H8 -0.754 1.399 1.174
H9 -0.754 1.399 -1.174

Atom - Atom Distances (Å)
  O1 O2 O3 C4 C5 H6 H7 H8 H9
O11.41151.41152.18842.18843.09953.09952.70572.7057
O21.41152.18561.41442.31982.02353.06692.09143.0830
O31.41152.18562.31981.41443.06692.02353.08302.0914
C42.18841.41442.31981.54691.10102.22961.10552.2032
C52.18842.31981.41441.54692.22961.10102.20321.1055
H63.09952.02353.06691.10102.22962.43011.81352.9990
H73.09953.06692.02352.22961.10102.43012.99901.8135
H82.70572.09143.08301.10552.20321.81352.99902.3478
H92.70573.08302.09142.20321.10552.99901.81352.3478

picture of 1,2,3-trioxolane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 101.508 O1 O3 C5 101.508
O2 O1 O3 101.469 O2 C4 C5 103.049
O2 C4 H6 106.450 O2 C4 H8 111.600
O3 C5 C4 103.049 O3 C5 H7 106.450
O3 C5 H9 111.600 C4 C5 H7 113.647
C4 C5 H9 111.239 C5 C4 H6 113.647
C5 C4 H8 111.239 H6 C4 H8 110.547
H7 C5 H9 110.547
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.025      
2 O -0.159      
3 O -0.159      
4 C -0.217      
5 C -0.217      
6 H 0.199      
7 H 0.199      
8 H 0.189      
9 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.394 3.608 0.000 3.629
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.726 0.787 0.000
y 0.787 -28.362 0.000
z 0.000 0.000 -30.118
Traceless
 xyz
x 0.514 0.787 0.000
y 0.787 1.060 0.000
z 0.000 0.000 -1.574
Polar
3z2-r2-3.148
x2-y2-0.364
xy0.787
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.031 0.257 0.000
y 0.257 5.955 0.000
z 0.000 0.000 6.169


<r2> (average value of r2) Å2
<r2> 86.329
(<r2>)1/2 9.291