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

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-684.624785
Energy at 298.15K-684.628355
HF Energy-684.044292
Nuclear repulsion energy256.547339
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 MP4/3-21G
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' 3292 3193        
2 A' 3269 3170        
3 A' 3242 3144        
4 A' 1555 1508        
5 A' 1464 1419        
6 A' 1362 1320        
7 A' 1260 1222        
8 A' 1160 1125        
9 A' 1091 1058        
10 A' 1007 976        
11 A' 986 956        
12 A' 894 867        
13 A' 869 843        
14 A' 431 418        
15 A' 267 259        
16 A" 812 788        
17 A" 807 782        
18 A" 726 704        
19 A" 610 592        
20 A" 590 572        
21 A" 215 209        

Unscaled Zero Point Vibrational Energy (zpe) 12953.3 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 12562.1 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 MP4/3-21G
ABC
0.29563 0.06583 0.05384

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.256 0.000
C2 1.331 -0.053 0.000
C3 1.403 -1.516 0.000
C4 0.115 -1.990 0.000
O5 -0.815 -0.893 0.000
Cl6 -0.864 1.847 0.000
H7 2.154 0.648 0.000
H8 2.309 -2.110 0.000
H9 -0.341 -2.969 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.36622.26092.24971.40891.81012.18883.30603.2430
C21.36621.46472.28672.30382.90331.08112.27713.3605
C32.26091.46471.37262.30404.05622.29041.08272.2699
C42.24972.28671.37261.43833.96013.33382.19721.0795
O51.40892.30382.30401.43832.74023.34433.35232.1289
Cl61.81012.90334.05623.96012.74023.24755.07194.8436
H72.18881.08112.29043.33383.34433.24752.76174.3933
H83.30602.27711.08272.19723.35235.07192.76172.7860
H93.24303.36052.26991.07952.12894.84364.39332.7860

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 105.952 C1 C2 H7 126.460
C1 O5 C4 104.391 C2 C1 O5 112.223
C2 C1 Cl6 131.638 C2 C3 C4 107.357
C2 C3 H8 126.067 C3 C2 H7 127.589
C3 C4 O5 110.078 C3 C4 H9 135.208
C4 C3 H8 126.576 O5 C1 Cl6 116.139
O5 C4 H9 114.714
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability