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

using model chemistry: MP2=FULL/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=FULL/3-21G
 hartrees
Energy at 0K-684.587138
Energy at 298.15K-684.590794
HF Energy-684.046510
Nuclear repulsion energy257.737075
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=FULL/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' 3345 3194 0.11      
2 A' 3323 3172 1.08      
3 A' 3297 3148 0.33      
4 A' 1558 1487 15.01      
5 A' 1466 1400 33.97      
6 A' 1386 1323 24.86      
7 A' 1281 1223 12.64      
8 A' 1180 1127 27.53      
9 A' 1124 1073 33.39      
10 A' 1037 990 21.95      
11 A' 1019 973 12.57      
12 A' 911 870 5.56      
13 A' 890 850 26.98      
14 A' 442 422 3.72      
15 A' 274 261 0.09      
16 A" 824 786 4.99      
17 A" 816 779 23.92      
18 A" 739 706 69.18      
19 A" 627 599 3.25      
20 A" 606 579 6.57      
21 A" 219 209 2.53      

Unscaled Zero Point Vibrational Energy (zpe) 13182.0 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 12586.2 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=FULL/3-21G
ABC
0.29808 0.06645 0.05433

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/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 0.081 -1.982 0.000
O5 -0.821 -0.877 0.000
Cl6 -0.833 1.851 0.000
H7 2.154 0.614 0.000
H8 2.265 -2.137 0.000
H9 -0.385 -2.951 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.36652.25202.23851.39891.80052.18363.29493.2295
C21.36651.45362.27752.29242.89341.07712.26613.3467
C32.25201.45361.37242.29144.03702.27881.07852.2641
C42.23852.27751.37241.42623.94073.32212.19051.0754
O51.39892.29242.29141.42622.72873.32813.33432.1195
Cl61.80052.89344.03703.94072.72873.23295.05074.8236
H72.18361.07712.27883.32213.32813.23292.75344.3768
H83.29492.26611.07852.19053.33435.05072.75342.7727
H93.22953.34672.26411.07542.11954.82364.37682.7727

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 105.943 C1 C2 H7 126.246
C1 O5 C4 104.808 C2 C1 O5 111.973
C2 C1 Cl6 131.534 C2 C3 C4 107.361
C2 C3 H8 126.362 C3 C2 H7 127.811
C3 C4 O5 109.915 C3 C4 H9 134.973
C4 C3 H8 126.277 O5 C1 Cl6 116.494
O5 C4 H9 115.111
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability