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

using model chemistry: QCISD/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-688.408696
Energy at 298.15K-688.412430
HF Energy-687.531025
Nuclear repulsion energy264.543812
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/6-31+G**
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' 3363 3180 0.10      
2 A' 3343 3160 0.28      
3 A' 3324 3143 2.30      
4 A' 1655 1565 16.31      
5 A' 1570 1484 68.34      
6 A' 1439 1360 9.64      
7 A' 1281 1211 21.50      
8 A' 1233 1166 52.76      
9 A' 1165 1101 9.60      
10 A' 1107 1047 16.52      
11 A' 1048 991 23.02      
12 A' 941 890 28.98      
13 A' 899 850 2.37      
14 A' 503 476 3.33      
15 A' 320 302 0.73      
16 A" 818 773 4.80      
17 A" 776 734 25.69      
18 A" 733 693 62.91      
19 A" 600 567 10.94      
20 A" 565 534 0.39      
21 A" 216 205 2.66      

Unscaled Zero Point Vibrational Energy (zpe) 13449.8 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 12715.4 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/6-31+G**
ABC
0.30729 0.07110 0.05774

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.272 0.000
C2 1.311 -0.082 0.000
C3 1.317 -1.525 0.000
C4 0.015 -1.916 0.000
O5 -0.818 -0.818 0.000
Cl6 -0.775 1.795 0.000
H7 2.154 0.587 0.000
H8 2.178 -2.172 0.000
H9 -0.480 -2.870 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.35842.22812.18771.36291.70862.17693.27393.1785
C21.35841.44312.24562.25292.80621.07622.26263.3139
C32.22811.44311.35932.24883.92402.27251.07722.2445
C42.18772.24561.35931.37763.79373.29262.17851.0752
O51.36292.25292.24881.37762.61363.28753.28782.0794
Cl61.70862.80623.92403.79372.61363.16774.94544.6743
H72.17691.07622.27253.29263.28753.16772.75974.3466
H83.27392.26261.07722.17853.28784.94542.75972.7484
H93.17853.31392.24451.07522.07944.67434.34662.7484

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 105.330 C1 C2 H7 126.413
C1 O5 C4 105.930 C2 C1 O5 111.764
C2 C1 Cl6 132.070 C2 C3 C4 106.474
C2 C3 H8 127.125 C3 C2 H7 128.257
C3 C4 O5 110.502 C3 C4 H9 134.104
C4 C3 H8 126.401 O5 C1 Cl6 116.166
O5 C4 H9 115.393
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability