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,3-chloro)

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-687.641279
Energy at 298.15K 
HF Energy-687.641279
Nuclear repulsion energy265.156682
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/Def2TZVPP
Rotational Constants (cm-1) from geometry optimized at HF/Def2TZVPP
ABC
0.31898 0.06858 0.05644

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.040 -0.566 0.000
C2 0.000 0.273 0.000
C3 1.189 -0.535 0.000
C4 0.741 -1.790 0.000
O5 -0.605 -1.824 0.000
Cl6 -0.109 1.979 0.000
H7 -2.091 -0.386 0.000
H8 2.206 -0.210 0.000
H9 1.237 -2.733 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.33612.22872.16031.33072.71001.06673.26493.1427
C21.33611.43712.19142.18221.70952.19242.25783.2498
C32.22871.43711.33242.20892.82883.28321.06762.1981
C42.16032.19141.33241.34623.86303.16072.15441.0655
O51.33072.18222.20891.34623.83502.06803.24112.0540
Cl62.71001.70952.82883.86303.83503.08573.18544.8997
H71.06672.19243.28323.16072.06803.08574.30034.0723
H83.26492.25781.06762.15443.24113.18544.30032.7020
H93.14273.24982.19811.06552.05404.89974.07232.7020

picture of Furan,3-chloro state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 106.908 C1 C2 Cl6 125.253
C1 O5 C4 107.611 C2 C1 O5 109.830
C2 C1 H7 131.360 C2 C3 C4 104.544
C2 C3 H8 128.089 C3 C2 Cl6 127.838
C3 C4 O5 111.108 C3 C4 H9 132.581
C4 C3 H8 127.367 O5 C1 H7 118.810
O5 C4 H9 116.311
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.124      
2 C -0.018      
3 C -0.158      
4 C 0.133      
5 O -0.347      
6 Cl -0.081      
7 H 0.117      
8 H 0.112      
9 H 0.118      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.435 -1.168 0.000 1.246
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.601 -2.547 0.000
y -2.547 -40.979 0.000
z 0.000 0.000 -43.581
Traceless
 xyz
x 5.680 -2.547 0.000
y -2.547 -0.888 0.000
z 0.000 0.000 -4.791
Polar
3z2-r2-9.583
x2-y24.378
xy-2.547
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.210 0.098 0.000
y 0.098 10.474 0.000
z 0.000 0.000 5.248


<r2> (average value of r2) Å2
<r2> 181.931
(<r2>)1/2 13.488