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

using model chemistry: CCSD(T)/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 CCSD(T)/6-31G*
 hartrees
Energy at 0K-688.401754
Energy at 298.15K-688.405411
HF Energy-687.517060
Nuclear repulsion energy263.911359
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 CCSD(T)/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' 3301 3176        
2 A' 3280 3155        
3 A' 3261 3138        
4 A' 1629 1568        
5 A' 1545 1487        
6 A' 1424 1370        
7 A' 1264 1216        
8 A' 1224 1177        
9 A' 1160 1116        
10 A' 1099 1058        
11 A' 1042 1002        
12 A' 932 896        
13 A' 891 857        
14 A' 496 477        
15 A' 315 303        
16 A" 784 754        
17 A" 755 726        
18 A" 708 681        
19 A" 603 580        
20 A" 559 538        
21 A" 218 210        

Unscaled Zero Point Vibrational Energy (zpe) 13243.7 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 12741.8 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 CCSD(T)/6-31G*
ABC
0.30517 0.07083 0.05749

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.270 0.000
C2 1.315 -0.089 0.000
C3 1.315 -1.530 0.000
C4 0.008 -1.918 0.000
O5 -0.824 -0.819 0.000
Cl6 -0.770 1.802 0.000
H7 2.167 0.582 0.000
H8 2.182 -2.182 0.000
H9 -0.495 -2.877 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.36332.22952.18821.36531.71432.18893.28263.1855
C21.36331.44152.24832.26022.81471.08382.26593.3239
C32.22951.44151.36342.25443.93072.27731.08472.2557
C42.18822.24831.36341.37893.80033.30292.18981.0825
O51.36532.26022.25441.37892.62083.30223.30082.0844
Cl61.71432.81473.93073.80032.62083.18004.95854.6865
H72.18891.08382.27733.30293.30223.18002.76434.3640
H83.28262.26591.08472.18983.30084.95852.76432.7651
H93.18553.32392.25571.08252.08444.68654.36402.7651

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 105.258 C1 C2 H7 126.511
C1 O5 C4 105.762 C2 C1 O5 111.861
C2 C1 Cl6 131.956 C2 C3 C4 106.529
C2 C3 H8 126.951 C3 C2 H7 128.231
C3 C4 O5 110.590 C3 C4 H9 134.195
C4 C3 H8 126.520 O5 C1 Cl6 116.183
O5 C4 H9 115.215
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability