return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: wB97X-D/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 wB97X-D/6-31G*
 hartrees
Energy at 0K-689.519378
Energy at 298.15K-689.523216
HF Energy-689.519378
Nuclear repulsion energy265.718960
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 wB97X-D/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' 3343 3171 0.09      
2 A' 3319 3148 0.29      
3 A' 3298 3128 2.22      
4 A' 1654 1569 21.52      
5 A' 1560 1479 58.56      
6 A' 1443 1368 16.43      
7 A' 1282 1216 33.56      
8 A' 1246 1182 29.49      
9 A' 1181 1120 9.33      
10 A' 1119 1061 13.01      
11 A' 1041 987 24.08      
12 A' 952 903 32.16      
13 A' 905 858 1.27      
14 A' 503 477 5.06      
15 A' 318 301 0.40      
16 A" 897 850 0.04      
17 A" 831 788 26.04      
18 A" 751 712 48.35      
19 A" 643 610 5.19      
20 A" 619 587 6.30      
21 A" 229 217 1.56      

Unscaled Zero Point Vibrational Energy (zpe) 13565.5 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 12866.9 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 wB97X-D/6-31G*
ABC
0.31057 0.07160 0.05819

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.263 0.000
C2 1.308 -0.095 0.000
C3 1.301 -1.528 0.000
C4 -0.002 -1.903 0.000
O5 -0.813 -0.810 0.000
Cl6 -0.761 1.795 0.000
H7 2.157 0.571 0.000
H8 2.159 -2.184 0.000
H9 -0.508 -2.855 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.35582.21382.16601.34651.71092.17873.26353.1591
C21.35581.43352.23242.23792.80241.07922.25623.3036
C32.21381.43351.35532.23203.91132.26741.08012.2428
C42.16602.23241.35531.36053.77543.28342.17881.0781
O51.34652.23792.23201.36052.60623.27523.27382.0671
Cl61.71092.80243.91133.77542.60623.16454.93614.6571
H72.17871.07922.26743.28343.27523.16452.75564.3403
H83.26352.25621.08012.17883.27384.93612.75562.7495
H93.15913.30362.24281.07812.06714.65714.34032.7495

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 105.029 C1 C2 H7 126.578
C1 O5 C4 106.285 C2 C1 O5 111.818
C2 C1 Cl6 131.736 C2 C3 C4 106.324
C2 C3 H8 127.120 C3 C2 H7 128.393
C3 C4 O5 110.543 C3 C4 H9 134.033
C4 C3 H8 126.556 O5 C1 Cl6 116.445
O5 C4 H9 115.424
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability