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

using model chemistry: MP2/CEP-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 MP2/CEP-31G
 hartrees
Energy at 0K-54.351608
Energy at 298.15K-54.355105
HF Energy-53.888402
Nuclear repulsion energy105.583075
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/CEP-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' 3304 3193 2.18      
2 A' 3273 3162 0.47      
3 A' 3244 3135 3.11      
4 A' 1531 1479 9.39      
5 A' 1460 1411 55.89      
6 A' 1359 1313 7.09      
7 A' 1231 1190 14.85      
8 A' 1153 1114 59.91      
9 A' 1113 1075 18.84      
10 A' 1035 1000 18.27      
11 A' 994 960 26.85      
12 A' 874 845 11.53      
13 A' 858 829 17.36      
14 A' 452 437 1.92      
15 A' 286 276 0.51      
16 A" 798 771 21.87      
17 A" 770 744 33.83      
18 A" 694 670 78.04      
19 A" 575 556 4.73      
20 A" 557 538 2.25      
21 A" 202 195 3.49      

Unscaled Zero Point Vibrational Energy (zpe) 12879.7 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 12445.6 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/CEP-31G
ABC
0.28557 0.06519 0.05308

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.277 0.000
C2 1.364 -0.091 0.000
C3 1.380 -1.569 0.000
C4 0.036 -2.004 0.000
O5 -0.842 -0.868 0.000
Cl6 -0.821 1.874 0.000
H7 2.215 0.593 0.000
H8 2.263 -2.213 0.000
H9 -0.467 -2.971 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.41282.30512.28201.42171.79522.23723.36523.2815
C21.41281.47832.32912.33932.93821.09142.30513.4131
C32.30511.47831.41282.33064.08632.31721.09302.3194
C42.28202.32911.41281.43653.97183.38992.23671.0899
O51.42172.33932.33061.43652.74193.38833.38452.1359
Cl61.79522.93824.08633.97182.74193.29505.12014.8574
H72.23721.09142.31723.38993.38833.29502.80634.4603
H83.36522.30511.09302.23673.38455.12012.80632.8340
H93.28153.41312.31941.08992.13594.85744.46032.8340

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 105.731 C1 C2 H7 126.127
C1 O5 C4 105.951 C2 C1 O5 111.237
C2 C1 Cl6 132.311 C2 C3 C4 107.322
C2 C3 H8 126.744 C3 C2 H7 128.142
C3 C4 O5 109.760 C3 C4 H9 135.492
C4 C3 H8 125.934 O5 C1 Cl6 116.453
O5 C4 H9 114.748
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability