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All results from a given calculation for C4H3ClO (Furan, 2-chloro)

using model chemistry: MP2/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-54.418886
Energy at 298.15K 
HF Energy-53.901717
Nuclear repulsion energy106.172842
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 MP2/CEP-121G
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' 3264 3186 0.73      
2 A' 3235 3157 0.24      
3 A' 3214 3137 2.90      
4 A' 1518 1481 10.59      
5 A' 1442 1407 58.97      
6 A' 1353 1321 7.85      
7 A' 1221 1191 12.77      
8 A' 1150 1122 48.54      
9 A' 1107 1081 31.21      
10 A' 1030 1005 20.25      
11 A' 991 967 25.77      
12 A' 875 854 6.56      
13 A' 862 841 23.02      
14 A' 452 442 1.95      
15 A' 285 278 0.50      
16 A" 703 686 71.76      
17 A" 631 616 32.82      
18 A" 606 591 6.61      
19 A" 539 526 11.20      
20 A" 185 181 3.56      
21 A" 371i 362i 4.17      

Unscaled Zero Point Vibrational Energy (zpe) 12145.9 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 11854.4 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 MP2/CEP-121G
ABC
0.29032 0.06567 0.05355

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.275 0.000
C2 1.351 -0.073 0.000
C3 1.391 -1.541 0.000
C4 0.072 -1.997 0.000
O5 -0.826 -0.879 0.000
Cl6 -0.843 1.857 0.000
H7 2.189 0.617 0.000
H8 2.282 -2.163 0.000
H9 -0.412 -2.967 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.39522.28702.27291.41861.79282.21553.33893.2674
C21.39521.46832.31042.32132.92231.08562.28763.3882
C32.28701.46831.39562.31344.06632.30091.08662.2982
C42.27292.31041.39561.43403.96103.36392.21611.0835
O51.41862.32132.31341.43402.73563.36553.36252.1286
Cl61.79282.92234.06633.96102.73563.27575.09154.8428
H72.21551.08562.30093.36393.36553.27572.78174.4280
H83.33892.28761.08662.21613.36255.09152.78172.8108
H93.26743.38822.29821.08352.12864.84284.42802.8108

picture of Furan, 2-chloro state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 105.983 C1 C2 H7 126.073
C1 O5 C4 105.641 C2 C1 O5 111.166
C2 C1 Cl6 132.491 C2 C3 C4 107.532
C2 C3 H8 126.468 C3 C2 H7 127.944
C3 C4 O5 109.678 C3 C4 H9 135.583
C4 C3 H8 126.000 O5 C1 Cl6 116.343
O5 C4 H9 114.739
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability