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

using model chemistry: B2PLYP=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C2V 1A1
1 2 yes C2 1A

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at B2PLYP=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-342.153671
Energy at 298.15K 
HF Energy-341.819177
Nuclear repulsion energy244.271266
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 B2PLYP=FULL/aug-cc-pVDZ
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 3088 2970 64.49      
2 A1 1885 1813 618.21      
3 A1 1544 1485 1.10      
4 A1 1395 1341 0.01      
5 A1 1189 1143 230.97      
6 A1 962 925 13.50      
7 A1 810 779 42.85      
8 A1 716 688 0.30      
9 A2 3122 3003 0.00      
10 A2 1253 1205 0.00      
11 A2 1169 1124 0.00      
12 A2 179i 172i 0.00      
13 B1 3145 3025 37.64      
14 B1 1266 1217 2.22      
15 B1 862 829 0.53      
16 B1 751 722 20.71      
17 B1 140 135 1.78      
18 B2 3080 2963 20.66      
19 B2 1533 1474 3.85      
20 B2 1396 1343 11.88      
21 B2 1177 1132 2.17      
22 B2 1020 981 296.47      
23 B2 743 715 4.24      
24 B2 496 477 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 16280.5 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 15658.6 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 B2PLYP=FULL/aug-cc-pVDZ
ABC
0.26033 0.12690 0.08819

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.871
O2 0.000 0.000 2.062
O3 0.000 1.138 0.057
O4 0.000 -1.138 0.057
C5 0.000 0.775 -1.294
C6 0.000 -0.775 -1.294
H7 -0.894 1.191 -1.776
H8 0.894 1.191 -1.776
H9 0.894 -1.191 -1.776
H10 -0.894 -1.191 -1.776

Atom - Atom Distances (Å)
  C1 O2 O3 O4 C5 C6 H7 H8 H9 H10
C11.19101.39901.39902.30042.30043.03773.03773.03773.0377
O21.19102.30562.30563.44523.44524.11754.11754.11754.1175
O31.39902.30562.27501.39902.34202.04022.04023.09543.0954
O41.39902.30562.27502.34201.39903.09543.09542.04022.0402
C52.30043.44521.39902.34201.55071.09701.09702.21292.2129
C62.30043.44522.34201.39901.55072.21292.21291.09701.0970
H73.03774.11752.04023.09541.09702.21291.78702.97782.3819
H83.03774.11752.04023.09541.09702.21291.78702.38192.9778
H93.03774.11753.09542.04022.21291.09702.97782.38191.7870
H103.03774.11753.09542.04022.21291.09702.38192.97781.7870

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 110.600 C1 O4 C6 110.600
O2 C1 O3 125.603 O2 C1 O4 125.603
O3 C1 O4 108.794 O3 C5 C6 105.003
O3 C5 H7 109.046 O3 C5 H8 109.046
O4 C6 C5 105.003 O4 C6 H9 109.046
O4 C6 H10 109.046 C5 C6 H9 112.264
C5 C6 H10 112.264 C6 C5 H7 112.264
C6 C5 H8 112.264 H7 C5 H8 109.074
H9 C6 H10 109.074
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at B2PLYP=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-342.154461
Energy at 298.15K-342.160821
HF Energy-341.819567
Nuclear repulsion energy244.824112
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 B2PLYP=FULL/aug-cc-pVDZ
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 3026 15.81      
2 A 3068 2951 38.27      
3 A 1887 1815 603.12      
4 A 1533 1474 1.32      
5 A 1398 1345 2.76      
6 A 1254 1206 15.57      
7 A 1192 1147 128.82      
8 A 1147 1103 82.81      
9 A 962 926 6.57      
10 A 805 774 45.97      
11 A 713 685 0.51      
12 A 138 132 0.44      
13 B 3158 3037 23.50      
14 B 3071 2954 39.83      
15 B 1524 1466 5.06      
16 B 1389 1336 9.78      
17 B 1265 1216 5.26      
18 B 1157 1112 3.36      
19 B 1016 977 265.41      
20 B 892 858 20.42      
21 B 759 730 20.86      
22 B 685 659 1.70      
23 B 496 477 0.33      
24 B 149 143 1.55      

Unscaled Zero Point Vibrational Energy (zpe) 16400.7 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 15774.2 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 B2PLYP=FULL/aug-cc-pVDZ
ABC
0.26182 0.12733 0.08939

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.867
O2 0.000 0.000 2.057
O3 0.000 1.137 0.047
O4 0.000 -1.137 0.047
C5 0.196 0.743 -1.285
C6 -0.196 -0.743 -1.285
H7 -0.438 1.353 -1.937
H8 1.251 0.889 -1.557
H9 0.438 -1.353 -1.937
H10 -1.251 -0.889 -1.557

Atom - Atom Distances (Å)
  C1 O2 O3 O4 C5 C6 H7 H8 H9 H10
C11.19081.40231.40232.28452.28453.14342.86863.14342.8686
O21.19082.31032.31033.42943.42944.23973.92664.23973.9266
O31.40232.31032.27491.40232.31232.04232.04873.21382.8713
O41.40232.31032.27492.31231.40233.21382.87132.04232.0487
C52.28453.42941.40232.31231.53671.09501.09972.20862.1983
C62.28453.42942.31231.40231.53672.20862.19831.09501.0997
H73.14344.23972.04233.21381.09502.20861.79242.84492.4158
H82.86863.92662.04872.87131.09972.19831.79242.41583.0702
H93.14344.23973.21382.04232.20861.09502.84492.41581.7924
H102.86863.92662.87132.04872.19831.09972.41583.07021.7924

picture of Ethylene carbonate state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O3 C5 109.089 C1 O4 C6 109.089
O2 C1 O3 125.791 O2 C1 O4 125.791
O3 C1 O4 108.419 O3 C5 C6 103.678
O3 C5 H7 109.114 O3 C5 H8 109.344
O4 C6 C5 103.678 O4 C6 H9 109.114
O4 C6 H10 109.344 C5 C6 H9 113.054
C5 C6 H10 111.923 C6 C5 H7 113.054
C6 C5 H8 111.923 H7 C5 H8 109.515
H9 C6 H10 109.515
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability