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

using model chemistry: QCISD(T)=FULL/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(T)=FULL/6-31G*
 hartrees
Energy at 0K-688.434496
Energy at 298.15K-688.438172
HF Energy-687.517376
Nuclear repulsion energy264.164189
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(T)=FULL/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' 3302 3302        
2 A' 3282 3282        
3 A' 3262 3262        
4 A' 1631 1631        
5 A' 1547 1547        
6 A' 1425 1425        
7 A' 1265 1265        
8 A' 1224 1224        
9 A' 1161 1161        
10 A' 1100 1100        
11 A' 1042 1042        
12 A' 932 932        
13 A' 892 892        
14 A' 497 497        
15 A' 315 315        
16 A" 790 790        
17 A" 761 761        
18 A" 713 713        
19 A" 607 607        
20 A" 566 566        
21 A" 220 220        

Unscaled Zero Point Vibrational Energy (zpe) 13266.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13266.4 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 QCISD(T)=FULL/6-31G*
ABC
0.30564 0.07099 0.05761

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.270 0.000
C2 1.314 -0.089 0.000
C3 1.313 -1.529 0.000
C4 0.007 -1.916 0.000
O5 -0.824 -0.817 0.000
Cl6 -0.769 1.800 0.000
H7 2.166 0.581 0.000
H8 2.179 -2.182 0.000
H9 -0.496 -2.875 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.36212.22732.18661.36431.71192.18783.28023.1836
C21.36211.44032.24682.25852.81131.08342.26483.3220
C32.22731.44031.36202.25213.92612.27571.08442.2542
C42.18662.24681.36201.37783.79643.30082.18781.0821
O51.36432.25852.25211.37782.61793.30033.29812.0832
Cl61.71192.81133.92613.79642.61793.17724.95394.6824
H72.18781.08342.27573.30083.30033.17722.76284.3615
H83.28022.26481.08442.18783.29814.95392.76282.7627
H93.18363.32202.25421.08212.08324.68244.36152.7627

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 105.235 C1 C2 H7 126.548
C1 O5 C4 105.763 C2 C1 O5 111.866
C2 C1 Cl6 131.949 C2 C3 C4 106.564
C2 C3 H8 126.977 C3 C2 H7 128.217
C3 C4 O5 110.571 C3 C4 H9 134.211
C4 C3 H8 126.460 O5 C1 Cl6 116.185
O5 C4 H9 115.217
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability