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All results from a given calculation for C2H4O3 (trioxolane124)

using model chemistry: QCISD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-301.424614
Energy at 298.15K-301.431181
HF Energy-300.847792
Nuclear repulsion energy188.771400
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 QCISD/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 3146 3049 1.17      
2 A 3079 2984 0.22      
3 A 1600 1551 0.00      
4 A 1418 1375 3.07      
5 A 1215 1177 0.40      
6 A 1127 1092 1.92      
7 A 985 955 8.83      
8 A 911 883 26.42      
9 A 836 810 17.34      
10 A 704 682 0.52      
11 A 346 335 6.55      
12 B 3149 3052 54.23      
13 B 3075 2980 80.21      
14 B 1582 1533 8.34      
15 B 1359 1317 1.40      
16 B 1192 1155 1.89      
17 B 1118 1084 13.64      
18 B 1032 1000 145.05      
19 B 854 828 1.42      
20 B 648 628 4.87      
21 B 168 163 23.66      

Unscaled Zero Point Vibrational Energy (zpe) 14770.7 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 14315.7 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 QCISD/3-21G
ABC
0.25211 0.25142 0.14204

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.238
C2 0.000 1.162 0.336
C3 0.000 -1.162 0.336
O4 -0.428 -0.645 -0.986
O5 0.428 0.645 -0.986
H6 -1.004 1.592 0.273
H7 1.004 -1.592 0.273
H8 0.758 1.885 0.648
H9 -0.758 -1.885 0.648

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7 H8 H9
O11.47111.47112.35452.35452.11462.11462.11542.1154
C21.47112.32442.27971.48231.09362.93171.09263.1553
C31.47112.32441.48232.27972.93171.09363.15531.0926
O42.35452.27971.48231.54852.63042.12823.23662.0770
O52.35451.48232.27971.54852.12822.63042.07703.2366
H62.11461.09362.93172.63042.12823.76331.82483.5051
H72.11462.93171.09362.12822.63043.76333.50511.8248
H82.11541.09263.15533.23662.07701.82483.50514.0629
H92.11543.15531.09262.07703.23663.50511.82484.0629

picture of trioxolane124 state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 O4 74.279 O1 C2 H6 110.212
O1 C2 H8 110.334 O1 C3 O5 74.279
O1 C3 H7 110.212 O1 C3 H9 110.334
C2 O1 C3 104.376 C2 O4 O5 40.135
C3 O5 O4 40.135 O4 C2 H6 96.059
O4 C2 H8 145.094 O5 C3 H7 96.059
O5 C3 H9 145.094 H6 C2 H8 113.170
H7 C3 H9 113.170
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability