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All results from a given calculation for C2H4CO3 (Ethylene carbonate)

using model chemistry: CCD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/TZVP
 hartrees
Energy at 0K-341.652285
Energy at 298.15K 
HF Energy-340.642262
Nuclear repulsion energy246.271221
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/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3111 2950 56.89      
2 A1 1985 1882 667.40      
3 A1 1592 1509 3.42      
4 A1 1449 1373 1.49      
5 A1 1258 1192 261.97      
6 A1 977 927 15.78      
7 A1 851 807 47.68      
8 A1 742 704 0.81      
9 A2 3142 2979 0.00      
10 A2 1270 1204 0.00      
11 A2 1203 1141 0.00      
12 A2 209i 198i 0.00      
13 B1 3164 2999 43.75      
14 B1 1305 1237 2.36      
15 B1 874 829 1.75      
16 B1 767 727 29.21      
17 B1 113 107 2.62      
18 B2 3104 2943 23.01      
19 B2 1577 1495 4.37      
20 B2 1455 1379 19.03      
21 B2 1246 1181 8.48      
22 B2 1081 1025 318.09      
23 B2 768 728 1.96      
24 B2 526 498 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 16675.1 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 15808.0 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/TZVP
ABC
0.26321 0.12946 0.08971

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.863
O2 0.000 0.000 2.040
O3 0.000 1.130 0.059
O4 0.000 -1.130 0.059
C5 0.000 0.774 -1.282
C6 0.000 -0.774 -1.282
H7 -0.888 1.181 -1.766
H8 0.888 1.181 -1.766
H9 0.888 -1.181 -1.766
H10 -0.888 -1.181 -1.766

Atom - Atom Distances (Å)
  C1 O2 O3 O4 C5 C6 H7 H8 H9 H10
C11.17651.38721.38722.28022.28023.01593.01593.01593.0159
O21.17652.28052.28053.41033.41034.08244.08244.08244.0824
O31.38722.28052.26061.38722.32892.03012.03013.07583.0758
O41.38722.28052.26062.32891.38723.07583.07582.03012.0301
C52.28023.41031.38722.32891.54791.09001.09002.20092.2009
C62.28023.41032.32891.38721.54792.20092.20091.09001.0900
H73.01594.08242.03013.07581.09002.20091.77542.95462.3617
H83.01594.08242.03013.07581.09002.20091.77542.36172.9546
H93.01594.08243.07582.03012.20091.09002.95462.36171.7754
H103.01594.08243.07582.03012.20091.09002.36172.95461.7754

picture of Ethylene carbonate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O3 C5 110.546 C1 O4 C6 110.546
O2 C1 O3 125.431 O2 C1 O4 125.431
O3 C1 O4 109.137 O3 C5 C6 104.885
O3 C5 H7 109.486 O3 C5 H8 109.486
O4 C6 C5 104.885 O4 C6 H9 109.486
O4 C6 H10 109.486 C5 C6 H9 111.917
C5 C6 H10 111.917 C6 C5 H7 111.917
C6 C5 H8 111.917 H7 C5 H8 109.051
H9 C6 H10 109.051
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability