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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-688.394110
Energy at 298.15K-688.397895
HF Energy-687.524390
Nuclear repulsion energy264.716939
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' 3366 3168 0.40      
2 A' 3348 3152 0.29      
3 A' 3329 3134 2.43      
4 A' 1669 1571 16.84      
5 A' 1581 1488 57.65      
6 A' 1449 1364 9.64      
7 A' 1289 1213 24.49      
8 A' 1242 1169 45.51      
9 A' 1173 1105 9.36      
10 A' 1116 1050 16.61      
11 A' 1054 992 19.44      
12 A' 945 890 30.91      
13 A' 901 848 1.88      
14 A' 503 474 3.04      
15 A' 319 300 0.41      
16 A" 835 786 2.19      
17 A" 797 750 21.42      
18 A" 745 701 42.38      
19 A" 620 584 10.81      
20 A" 581 547 1.22      
21 A" 226 212 1.76      

Unscaled Zero Point Vibrational Energy (zpe) 13542.5 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 12748.9 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
0.30780 0.07116 0.05780

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 0.269 0.000
C2 1.309 -0.086 0.000
C3 1.312 -1.528 0.000
C4 0.010 -1.913 0.000
O5 -0.821 -0.818 0.000
Cl6 -0.768 1.797 0.000
H7 2.153 0.580 0.000
H8 2.171 -2.176 0.000
H9 -0.485 -2.867 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.35672.22452.18221.36151.71072.17573.26973.1732
C21.35671.44132.24142.25182.80461.07562.26013.3093
C32.22451.44131.35702.24723.92202.27001.07662.2409
C42.18222.24141.35701.37513.79143.28792.17681.0748
O51.36152.25182.24721.37512.61533.28603.28572.0767
Cl61.71072.80463.92203.79142.61533.16494.94244.6729
H72.17571.07562.27003.28793.28603.16492.75624.3412
H83.26972.26011.07662.17683.28574.94242.75622.7450
H93.17323.30932.24091.07482.07674.67294.34122.7450

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 105.276 C1 C2 H7 126.494
C1 O5 C4 105.764 C2 C1 O5 111.873
C2 C1 Cl6 131.879 C2 C3 C4 106.411
C2 C3 H8 127.087 C3 C2 H7 128.229
C3 C4 O5 110.675 C3 C4 H9 133.958
C4 C3 H8 126.501 O5 C1 Cl6 116.248
O5 C4 H9 115.367
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability