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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-688.426570
Energy at 298.15K-688.430265
HF Energy-687.523282
Nuclear repulsion energy264.064902
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' 3348 3176        
2 A' 3331 3160        
3 A' 3312 3141        
4 A' 1635 1551        
5 A' 1550 1470        
6 A' 1433 1359        
7 A' 1272 1207        
8 A' 1226 1163        
9 A' 1162 1102        
10 A' 1102 1045        
11 A' 1045 991        
12 A' 932 884        
13 A' 891 845        
14 A' 496 471        
15 A' 315 299        
16 A" 802 761        
17 A" 768 728        
18 A" 716 679        
19 A" 604 573        
20 A" 559 531        
21 A" 219 207        

Unscaled Zero Point Vibrational Energy (zpe) 13358.4 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 12670.5 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
0.30561 0.07088 0.05753

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 -0.090 0.000
C3 1.313 -1.531 0.000
C4 0.006 -1.918 0.000
O5 -0.824 -0.818 0.000
Cl6 -0.768 1.802 0.000
H7 2.161 0.576 0.000
H8 2.174 -2.180 0.000
H9 -0.493 -2.872 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.36312.22872.18791.36481.71392.18253.27543.1798
C21.36311.44082.24812.25962.81381.07702.25993.3173
C32.22871.44081.36332.25363.92942.27121.07802.2494
C42.18792.24811.36331.37863.79993.29622.18341.0762
O51.36482.25962.25361.37862.62063.29483.29332.0804
Cl61.71392.81383.92943.79992.62063.17494.95104.6818
H72.18251.07702.27123.29623.29483.17492.75674.3509
H83.27542.25991.07802.18343.29334.95102.75672.7547
H93.17983.31732.24941.07622.08044.68184.35092.7547

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 105.250 C1 C2 H7 126.470
C1 O5 C4 105.787 C2 C1 O5 111.855
C2 C1 Cl6 131.921 C2 C3 C4 106.558
C2 C3 H8 126.989 C3 C2 H7 128.280
C3 C4 O5 110.549 C3 C4 H9 134.123
C4 C3 H8 126.453 O5 C1 Cl6 116.224
O5 C4 H9 115.328
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability