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

using model chemistry: QCISD/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/aug-cc-pVDZ
 hartrees
Energy at 0K-688.483761
Energy at 298.15K-688.487522
HF Energy-687.569370
Nuclear repulsion energy263.088250
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 QCISD/aug-cc-pVDZ
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' 3313 3210 0.05      
2 A' 3297 3194 0.55      
3 A' 3275 3172 1.99      
4 A' 1627 1576 18.73      
5 A' 1550 1501 62.15      
6 A' 1405 1361 10.45      
7 A' 1243 1205 15.77      
8 A' 1206 1168 52.70      
9 A' 1140 1105 5.88      
10 A' 1080 1046 17.68      
11 A' 1023 991 24.00      
12 A' 926 897 26.10      
13 A' 887 859 2.11      
14 A' 495 479 3.47      
15 A' 311 301 0.60      
16 A" 834 808 0.00      
17 A" 797 772 23.11      
18 A" 735 712 57.37      
19 A" 610 591 4.42      
20 A" 590 572 5.54      
21 A" 221 214 2.18      

Unscaled Zero Point Vibrational Energy (zpe) 13281.2 cm-1
Scaled (by 0.9687) Zero Point Vibrational Energy (zpe) 12865.5 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 QCISD/aug-cc-pVDZ
ABC
0.30363 0.07038 0.05713

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.270 0.000
C2 1.321 -0.079 0.000
C3 1.327 -1.533 0.000
C4 0.016 -1.923 0.000
O5 -0.820 -0.822 0.000
Cl6 -0.783 1.803 0.000
H7 2.169 0.602 0.000
H8 2.196 -2.189 0.000
H9 -0.483 -2.889 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.36642.23902.19341.36551.72062.19413.29723.1957
C21.36641.45372.25912.26582.82251.08762.28423.3388
C32.23901.45371.36822.26153.94672.29471.08892.2617
C42.19342.25911.36821.38223.81023.31832.19641.0868
O51.36552.26582.26151.38222.62473.31033.31112.0940
Cl61.72062.82253.94673.81022.62473.18654.98064.7007
H72.19411.08762.29473.31833.31033.18652.79114.3837
H83.29722.28421.08892.19643.31114.98062.79112.7690
H93.19573.33882.26171.08682.09404.70074.38372.7690

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 105.065 C1 C2 H7 126.406
C1 O5 C4 105.929 C2 C1 O5 112.065
C2 C1 Cl6 131.883 C2 C3 C4 106.326
C2 C3 H8 127.307 C3 C2 H7 128.530
C3 C4 O5 110.616 C3 C4 H9 133.894
C4 C3 H8 126.368 O5 C1 Cl6 116.052
O5 C4 H9 115.490
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability