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

using model chemistry: QCISD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31G
 hartrees
Energy at 0K-687.944074
Energy at 298.15K-687.947674
HF Energy-687.385489
Nuclear repulsion energy257.599343
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/6-31G
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' 3298 3178 0.11      
2 A' 3264 3145 0.03      
3 A' 3241 3123 2.68      
4 A' 1616 1557 15.21      
5 A' 1526 1470 42.66      
6 A' 1384 1333 9.58      
7 A' 1263 1217 13.53      
8 A' 1175 1132 25.52      
9 A' 1116 1075 41.41      
10 A' 1038 1001 14.02      
11 A' 1006 969 20.04      
12 A' 898 865 24.34      
13 A' 886 854 14.98      
14 A' 455 438 2.59      
15 A' 292 281 0.44      
16 A" 802 773 18.54      
17 A" 781 753 9.24      
18 A" 721 695 55.92      
19 A" 598 577 9.52      
20 A" 570 549 5.10      
21 A" 214 207 3.21      

Unscaled Zero Point Vibrational Energy (zpe) 13070.7 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 12594.9 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/6-31G
ABC
0.29812 0.06643 0.05432

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.267 0.000
C2 1.331 -0.043 0.000
C3 1.406 -1.506 0.000
C4 0.120 -1.981 0.000
O5 -0.796 -0.889 0.000
Cl6 -0.877 1.829 0.000
H7 2.159 0.660 0.000
H8 2.315 -2.102 0.000
H9 -0.338 -2.962 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.36672.26322.25101.40401.79112.19393.31223.2468
C21.36671.46542.28552.28952.89461.08522.28223.3627
C32.26321.46541.37122.28704.04172.29251.08642.2717
C42.25102.28551.37121.42463.93783.33572.19821.0827
O51.40402.28952.28701.42462.71943.33593.33872.1227
Cl61.79112.89464.04173.93782.71943.25315.06354.8211
H72.19391.08522.29253.33573.33593.25312.76594.3984
H83.31222.28221.08642.19823.33875.06352.76592.7882
H93.24683.36272.27171.08272.12274.82114.39842.7882

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 106.041 C1 C2 H7 126.582
C1 O5 C4 105.461 C2 C1 O5 111.435
C2 C1 Cl6 132.423 C2 C3 C4 107.309
C2 C3 H8 126.206 C3 C2 H7 127.377
C3 C4 O5 109.753 C3 C4 H9 135.237
C4 C3 H8 126.485 O5 C1 Cl6 116.141
O5 C4 H9 115.009
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability