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

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-688.799985
Energy at 298.15K-688.794323
HF Energy-687.517945
Nuclear repulsion energy267.364087
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 CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3475 3475 0.63      
2 A' 3450 3450 0.43      
3 A' 3430 3430 4.06      
4 A' 1780 1780 31.55      
5 A' 1679 1679 78.80      
6 A' 1531 1531 16.99      
7 A' 1359 1359 18.73      
8 A' 1311 1311 42.60      
9 A' 1232 1232 14.32      
10 A' 1184 1184 33.46      
11 A' 1093 1093 21.75      
12 A' 1019 1019 38.57      
13 A' 968 968 1.87      
14 A' 530 530 5.31      
15 A' 338 338 0.46      
16 A" 991 991 0.28      
17 A" 919 919 15.82      
18 A" 846 846 57.00      
19 A" 704 704 5.99      
20 A" 656 656 9.99      
21 A" 252 252 2.30      

Unscaled Zero Point Vibrational Energy (zpe) 14373.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14373.3 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 CBS-Q
ABC
0.30533 0.07143 0.05789

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.260 0.000
C2 1.295 -0.060 0.000
C3 1.320 -1.498 0.000
C4 0.045 -1.890 0.000
O5 -0.779 -0.820 0.000
Cl6 -0.799 1.767 0.000
H7 2.120 0.622 0.000
H8 2.183 -2.133 0.000
H9 -0.441 -2.842 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.33402.19872.15131.33251.70542.15093.23963.1337
C21.33401.43832.21702.20972.77901.07052.25553.2796
C32.19871.43831.33472.20643.89232.26581.07152.2157
C42.15132.21701.33471.35083.75353.25912.15221.0684
O51.33252.20972.20641.35082.58733.23883.24052.0500
Cl61.70542.77903.89233.75352.58733.13594.90964.6229
H72.15091.07052.26583.25913.23883.13592.75594.3082
H83.23962.25551.07152.15223.24054.90962.75592.7182
H93.13373.27962.21571.06842.05004.62294.30822.7182

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 104.887 C1 C2 H7 126.549
C1 O5 C4 106.593 C2 C1 O5 111.922
C2 C1 Cl6 131.830 C2 C3 C4 106.108
C2 C3 H8 127.366 C3 C2 H7 128.564
C3 C4 O5 110.490 C3 C4 H9 134.143
C4 C3 H8 126.526 O5 C1 Cl6 116.248
O5 C4 H9 115.367
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability