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

using model chemistry: CISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/6-311G*
 hartrees
Energy at 0K-688.321018
Energy at 298.15K-688.324993
HF Energy-687.591377
Nuclear repulsion energy267.076462
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 CISD/6-311G*
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' 3408 3153 0.34      
2 A' 3386 3133 0.38      
3 A' 3368 3116 2.75      
4 A' 1709 1581 27.21      
5 A' 1615 1495 69.14      
6 A' 1486 1375 17.82      
7 A' 1320 1221 38.58      
8 A' 1283 1187 35.32      
9 A' 1210 1120 10.67      
10 A' 1155 1069 20.97      
11 A' 1073 993 23.29      
12 A' 987 914 33.14      
13 A' 937 867 1.35      
14 A' 522 483 4.04      
15 A' 328 304 0.56      
16 A" 902 834 0.27      
17 A" 844 781 20.88      
18 A" 795 736 70.48      
19 A" 669 619 8.00      
20 A" 626 579 6.19      
21 A" 239 221 2.79      

Unscaled Zero Point Vibrational Energy (zpe) 13931.1 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 12890.4 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 CISD/6-311G*
ABC
0.31431 0.07231 0.05878

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.261 0.000
C2 1.297 -0.097 0.000
C3 1.283 -1.535 0.000
C4 -0.015 -1.894 0.000
O5 -0.814 -0.800 0.000
Cl6 -0.743 1.792 0.000
H7 2.144 0.562 0.000
H8 2.131 -2.194 0.000
H9 -0.522 -2.838 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.34592.20712.15491.33791.70132.16473.25053.1427
C21.34591.43742.22442.22532.78051.07272.25593.2893
C32.20711.43741.34642.22183.89482.26611.07372.2261
C42.15492.22441.34641.35433.75663.26912.16611.0718
O51.33792.22532.22181.35432.59313.25633.25762.0582
Cl61.70132.78053.89483.75662.59313.13804.91334.6347
H72.16471.07272.26613.26913.25633.13802.75534.3199
H83.25052.25591.07372.16613.25764.91332.75532.7296
H93.14273.28932.22611.07182.05824.63474.31992.7296

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 104.882 C1 C2 H7 126.651
C1 O5 C4 106.346 C2 C1 O5 112.028
C2 C1 Cl6 131.352 C2 C3 C4 106.033
C2 C3 H8 127.296 C3 C2 H7 128.467
C3 C4 O5 110.711 C3 C4 H9 133.711
C4 C3 H8 126.671 O5 C1 Cl6 116.620
O5 C4 H9 115.578
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability