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

using model chemistry: QCISD/TZVP

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/TZVP
 hartrees
Energy at 0K-688.527536
Energy at 298.15K-688.530816
HF Energy-687.615467
Nuclear repulsion energy264.950001
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/TZVP
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' 3332 3183 0.07      
2 A' 3315 3167 0.47      
3 A' 3295 3147 1.94      
4 A' 1641 1568 16.77      
5 A' 1558 1488 64.98      
6 A' 1426 1362 14.82      
7 A' 1274 1217 22.41      
8 A' 1227 1172 48.71      
9 A' 1163 1111 11.18      
10 A' 1104 1055 20.36      
11 A' 1038 992 22.47      
12 A' 946 904 28.19      
13 A' 905 864 1.15      
14 A' 498 476 3.71      
15 A' 315 301 0.44      
16 A" 752 718 30.17      
17 A" 700 669 49.99      
18 A" 684 653 0.42      
19 A" 587 560 13.69      
20 A" 217 207 0.87      
21 A" 198 190 1.74      

Unscaled Zero Point Vibrational Energy (zpe) 13086.4 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 12501.4 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 QCISD/TZVP
ABC
0.30946 0.07113 0.05784

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.264 0.000
C2 1.307 -0.082 0.000
C3 1.315 -1.523 0.000
C4 0.019 -1.911 0.000
O5 -0.813 -0.821 0.000
Cl6 -0.776 1.796 0.000
H7 2.148 0.589 0.000
H8 2.177 -2.169 0.000
H9 -0.474 -2.867 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.35222.21872.17501.35541.71722.17253.26463.1663
C21.35221.44142.23762.24532.80451.07582.26113.3057
C32.21871.44141.35312.24093.92272.27101.07702.2371
C42.17502.23761.35311.37133.79113.28432.17351.0751
O51.35542.24532.24091.37132.61683.27963.27972.0740
Cl61.71722.80453.92273.79112.61683.16304.94364.6723
H72.17251.07582.27103.28433.27963.16302.75874.3381
H83.26462.26111.07702.17353.27974.94362.75872.7408
H93.16633.30572.23711.07512.07404.67234.33812.7408

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 105.118 C1 C2 H7 126.581
C1 O5 C4 105.813 C2 C1 O5 112.043
C2 C1 Cl6 131.676 C2 C3 C4 106.351
C2 C3 H8 127.157 C3 C2 H7 128.301
C3 C4 O5 110.675 C3 C4 H9 133.920
C4 C3 H8 126.492 O5 C1 Cl6 116.282
O5 C4 H9 115.405
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability