return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/6-311G**
 hartrees
Energy at 0K-689.360522
Energy at 298.15K-689.364310
HF Energy-689.025155
Nuclear repulsion energy265.134078
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 B2PLYP=FULL/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' 3314 3314 0.05      
2 A' 3294 3294 0.40      
3 A' 3274 3274 1.93      
4 A' 1602 1602 21.17      
5 A' 1514 1514 58.62      
6 A' 1409 1409 16.81      
7 A' 1250 1250 9.97      
8 A' 1209 1209 57.72      
9 A' 1152 1152 7.52      
10 A' 1089 1089 17.73      
11 A' 1032 1032 23.91      
12 A' 937 937 28.68      
13 A' 899 899 1.62      
14 A' 495 495 4.93      
15 A' 314 314 0.51      
16 A" 856 856 0.15      
17 A" 797 797 23.36      
18 A" 735 735 58.62      
19 A" 626 626 7.79      
20 A" 603 603 2.84      
21 A" 221 221 2.22      

Unscaled Zero Point Vibrational Energy (zpe) 13310.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13310.1 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 B2PLYP=FULL/6-311G**
ABC
0.30877 0.07134 0.05795

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.265 0.000
C2 1.309 -0.103 0.000
C3 1.295 -1.537 0.000
C4 -0.012 -1.910 0.000
O5 -0.824 -0.807 0.000
Cl6 -0.750 1.804 0.000
H7 2.159 0.556 0.000
H8 2.148 -2.195 0.000
H9 -0.521 -2.857 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.35962.21932.17531.35271.71112.17883.26623.1655
C21.35961.43392.23792.24582.80571.07642.25403.3064
C32.21931.43391.35892.24073.91652.26481.07752.2451
C42.17532.23791.35891.36913.78603.28582.17881.0753
O51.35272.24582.24071.36912.61213.28013.27992.0716
Cl61.71112.80573.91653.78602.61213.16514.93824.6660
H72.17881.07642.26483.28583.28013.16512.75144.3400
H83.26622.25401.07752.17883.27994.93822.75142.7503
H93.16553.30642.24511.07532.07164.66604.34002.7503

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 105.175 C1 C2 H7 126.486
C1 O5 C4 106.110 C2 C1 O5 111.789
C2 C1 Cl6 131.714 C2 C3 C4 106.479
C2 C3 H8 127.081 C3 C2 H7 128.339
C3 C4 O5 110.447 C3 C4 H9 134.204
C4 C3 H8 126.439 O5 C1 Cl6 116.497
O5 C4 H9 115.349
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability