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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-684.574123
Energy at 298.15K-684.577776
HF Energy-684.046429
Nuclear repulsion energy257.701408
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 MP2/3-21G
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' 3344 3192 0.11      
2 A' 3322 3171 1.06      
3 A' 3297 3147 0.33      
4 A' 1557 1486 14.89      
5 A' 1466 1399 34.11      
6 A' 1385 1322 24.84      
7 A' 1280 1222 12.62      
8 A' 1180 1126 27.25      
9 A' 1124 1073 33.63      
10 A' 1037 989 21.92      
11 A' 1019 972 12.81      
12 A' 911 870 5.45      
13 A' 890 850 27.07      
14 A' 442 422 3.73      
15 A' 274 262 0.09      
16 A" 823 785 5.06      
17 A" 814 777 23.97      
18 A" 738 704 69.03      
19 A" 626 598 3.41      
20 A" 606 578 6.52      
21 A" 219 209 2.51      

Unscaled Zero Point Vibrational Energy (zpe) 13176.4 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 12576.9 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 MP2/3-21G
ABC
0.29796 0.06643 0.05432

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.255 0.000
C2 1.326 -0.075 0.000
C3 1.376 -1.528 0.000
C4 0.080 -1.982 0.000
O5 -0.822 -0.877 0.000
Cl6 -0.832 1.852 0.000
H7 2.154 0.613 0.000
H8 2.265 -2.138 0.000
H9 -0.386 -2.952 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.36682.25242.23891.39921.80052.18403.29543.2300
C21.36681.45392.27792.29292.89371.07722.26643.3472
C32.25241.45391.37252.29194.03742.27911.07862.2644
C42.23892.27791.37251.42653.94113.32272.19071.0756
O51.39922.29292.29191.42652.72903.32873.33482.1199
Cl61.80052.89374.03743.94112.72903.23335.05124.8242
H72.18401.07722.27913.32273.32873.23332.75384.3775
H83.29542.26641.07862.19073.33485.05122.75382.7731
H93.23003.34722.26441.07562.11994.82424.37752.7731

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 105.938 C1 C2 H7 126.252
C1 O5 C4 104.802 C2 C1 O5 111.978
C2 C1 Cl6 131.531 C2 C3 C4 107.367
C2 C3 H8 126.359 C3 C2 H7 127.810
C3 C4 O5 109.915 C3 C4 H9 134.977
C4 C3 H8 126.274 O5 C1 Cl6 116.492
O5 C4 H9 115.108
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability