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

using model chemistry: G3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G3
 hartrees
Energy at 0K-689.322191
Energy at 298.15K-689.316452
HF Energy-687.520946
Nuclear repulsion energy267.505632
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 HF/6-31G*
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' 3493 3291 0.79      
2 A' 3465 3264 0.37      
3 A' 3445 3246 3.99      
4 A' 1783 1680 30.12      
5 A' 1679 1582 78.44      
6 A' 1542 1453 15.80      
7 A' 1373 1293 19.08      
8 A' 1318 1242 41.80      
9 A' 1239 1167 14.24      
10 A' 1191 1122 31.53      
11 A' 1101 1037 19.09      
12 A' 1021 962 40.43      
13 A' 970 914 2.33      
14 A' 532 502 4.93      
15 A' 339 320 0.47      
16 A" 1007 949 0.20      
17 A" 933 879 17.62      
18 A" 853 803 61.27      
19 A" 705 664 5.37      
20 A" 657 619 10.27      
21 A" 252 238 2.36      

Unscaled Zero Point Vibrational Energy (zpe) 14448.1 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 13613.0 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=FULL/6-31G*
ABC
0.30716 0.07155 0.05803

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.270 0.000
C2 1.310 -0.112 0.000
C3 1.290 -1.538 0.000
C4 -0.022 -1.909 0.000
O5 -0.832 -0.803 0.000
Cl6 -0.740 1.804 0.000
H7 2.167 0.546 0.000
H8 2.142 -2.202 0.000
H9 -0.540 -2.856 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.36502.22082.17991.35761.70272.18463.27153.1729
C21.36501.42602.23792.25082.80601.08022.24993.3099
C32.22081.42601.36382.24523.90952.26091.08102.2551
C42.17992.23791.36381.37123.78193.29002.18441.0789
O51.35762.25082.24521.37122.60793.28823.28692.0745
Cl61.70272.80603.90953.78192.60793.16764.93514.6645
H72.18461.08022.26093.29003.28823.16762.74844.3477
H83.27152.24991.08102.18443.28694.93512.74842.7604
H93.17293.30992.25511.07892.07454.66454.34772.7604

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 105.018 C1 C2 H7 126.515
C1 O5 C4 106.584 C2 C1 O5 111.790
C2 C1 Cl6 131.811 C2 C3 C4 106.216
C2 C3 H8 127.282 C3 C2 H7 128.467
C3 C4 O5 110.392 C3 C4 H9 134.050
C4 C3 H8 126.502 O5 C1 Cl6 116.400
O5 C4 H9 115.558
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability