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

using model chemistry: CISD/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 CISD/6-31G
 hartrees
Energy at 0K-687.853542
Energy at 298.15K-687.857380
HF Energy-687.390365
Nuclear repulsion energy260.343842
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 CISD/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' 3404 3192 0.04      
2 A' 3368 3159 0.23      
3 A' 3346 3138 2.45      
4 A' 1683 1579 20.67      
5 A' 1585 1486 53.48      
6 A' 1443 1353 10.13      
7 A' 1311 1229 14.62      
8 A' 1227 1151 37.35      
9 A' 1168 1096 28.47      
10 A' 1087 1020 15.45      
11 A' 1060 994 24.46      
12 A' 947 888 36.73      
13 A' 927 870 7.09      
14 A' 480 450 3.12      
15 A' 305 286 0.47      
16 A" 879 825 3.86      
17 A" 860 807 22.25      
18 A" 780 731 67.87      
19 A" 645 605 6.75      
20 A" 609 571 8.77      
21 A" 230 216 3.54      

Unscaled Zero Point Vibrational Energy (zpe) 13672.4 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 12822.0 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 CISD/6-31G
ABC
0.30532 0.06775 0.05545

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.264 0.000
C2 1.318 -0.053 0.000
C3 1.378 -1.506 0.000
C4 0.097 -1.961 0.000
O5 -0.788 -0.872 0.000
Cl6 -0.853 1.818 0.000
H7 2.144 0.637 0.000
H8 2.272 -2.107 0.000
H9 -0.364 -2.931 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.35522.24352.22751.38271.77272.17633.28453.2159
C21.35521.45452.26512.25932.86591.07652.26553.3334
C32.24351.45451.35932.25714.00372.27571.07762.2506
C42.22752.26511.35931.40363.89693.30742.18011.0739
O51.38272.25932.25711.40362.69083.29763.30042.1023
Cl61.77272.86594.00373.89692.69083.22185.01794.7742
H72.17631.07652.27573.30743.29763.22182.74714.3612
H83.28452.26551.07762.18013.30045.01792.74712.7621
H93.21593.33342.25061.07392.10234.77424.36122.7621

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 105.915 C1 C2 H7 126.629
C1 O5 C4 106.150 C2 C1 O5 111.215
C2 C1 Cl6 132.303 C2 C3 C4 107.175
C2 C3 H8 126.296 C3 C2 H7 127.456
C3 C4 O5 109.545 C3 C4 H9 134.995
C4 C3 H8 126.529 O5 C1 Cl6 116.481
O5 C4 H9 115.460
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability