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

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-688.546028
Energy at 298.15K-688.549828
HF Energy-687.546504
Nuclear repulsion energy265.843778
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 MP2/6-31G(2df,p)
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 3160 0.32      
2 A' 3334 3149 2.41      
3 A' 3314 3130 0.66      
4 A' 1593 1505 13.44      
5 A' 1507 1424 39.93      
6 A' 1414 1336 18.80      
7 A' 1273 1202 65.10      
8 A' 1238 1169 18.15      
9 A' 1180 1115 4.00      
10 A' 1102 1041 9.25      
11 A' 1043 985 21.47      
12 A' 934 882 25.60      
13 A' 890 841 1.46      
14 A' 505 477 3.14      
15 A' 313 296 0.28      
16 A" 839 793 0.05      
17 A" 792 748 31.67      
18 A" 732 691 35.76      
19 A" 636 600 5.85      
20 A" 608 575 2.06      
21 A" 228 215 1.24      

Unscaled Zero Point Vibrational Energy (zpe) 13410.1 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 12665.8 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 MP2/6-31G(2df,p)
ABC
0.30797 0.07203 0.05838

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.267 0.000
C2 1.313 -0.109 0.000
C3 1.290 -1.536 0.000
C4 -0.025 -1.900 0.000
O5 -0.827 -0.797 0.000
Cl6 -0.741 1.796 0.000
H7 2.164 0.550 0.000
H8 2.135 -2.203 0.000
H9 -0.544 -2.842 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.36592.21662.16741.34851.69892.18223.26533.1570
C21.36591.42652.23552.24832.80171.07632.24943.3045
C32.21661.42651.36442.24193.90172.26141.07742.2518
C42.16742.23551.36441.36333.76463.28542.18191.0760
O51.34852.24832.24191.36332.59503.28073.27922.0644
Cl61.69892.80173.90173.76462.59503.16094.92614.6427
H72.18221.07632.26143.28543.28073.16092.75304.3407
H83.26532.24941.07742.18193.27924.92612.75302.7550
H93.15703.30452.25181.07602.06444.64274.34072.7550

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 105.064 C1 C2 H7 126.230
C1 O5 C4 106.115 C2 C1 O5 111.843
C2 C1 Cl6 131.866 C2 C3 C4 106.425
C2 C3 H8 127.330 C3 C2 H7 128.706
C3 C4 O5 110.553 C3 C4 H9 134.321
C4 C3 H8 126.245 O5 C1 Cl6 116.290
O5 C4 H9 115.126
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability