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: B3LYP/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 B3LYP/TZVP
 hartrees
Energy at 0K-689.717407
Energy at 298.15K-689.721189
HF Energy-689.717407
Nuclear repulsion energy264.810015
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 B3LYP/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' 3294 3180 0.31      
2 A' 3275 3162 0.72      
3 A' 3254 3142 1.64      
4 A' 1601 1545 18.96      
5 A' 1507 1455 66.37      
6 A' 1401 1353 17.79      
7 A' 1250 1206 6.78      
8 A' 1190 1149 48.09      
9 A' 1136 1097 13.09      
10 A' 1080 1043 20.92      
11 A' 1027 991 25.23      
12 A' 935 903 30.23      
13 A' 902 870 1.53      
14 A' 487 470 6.47      
15 A' 313 302 0.56      
16 A" 863 833 0.00      
17 A" 807 779 21.82      
18 A" 734 708 64.72      
19 A" 627 605 4.67      
20 A" 602 581 4.29      
21 A" 222 215 2.39      

Unscaled Zero Point Vibrational Energy (zpe) 13252.3 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 12793.8 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 B3LYP/TZVP
ABC
0.31008 0.07089 0.05770

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.264 0.000
C2 1.307 -0.095 0.000
C3 1.306 -1.528 0.000
C4 0.008 -1.916 0.000
O5 -0.814 -0.818 0.000
Cl6 -0.767 1.804 0.000
H7 2.154 0.569 0.000
H8 2.167 -2.176 0.000
H9 -0.490 -2.868 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.35532.21752.17971.35401.72102.17563.26323.1704
C21.35531.43352.23672.24062.81241.07612.25183.3049
C32.21751.43351.35432.23523.92492.26211.07742.2409
C42.17972.23671.35431.37093.80003.28302.17431.0751
O51.35402.24062.23521.37092.62313.27593.27502.0754
Cl61.72102.81243.92493.80002.62313.17214.94504.6809
H72.17561.07612.26213.28303.27593.17212.74484.3366
H83.26322.25181.07742.17433.27504.94502.74482.7457
H93.17043.30492.24091.07512.07544.68094.33662.7457

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 105.304 C1 C2 H7 126.578
C1 O5 C4 106.239 C2 C1 O5 111.585
C2 C1 Cl6 131.832 C2 C3 C4 106.667
C2 C3 H8 126.911 C3 C2 H7 128.118
C3 C4 O5 110.205 C3 C4 H9 134.235
C4 C3 H8 126.422 O5 C1 Cl6 116.583
O5 C4 H9 115.560
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.044      
2 C -0.042      
3 C -0.153      
4 C -0.044      
5 O -0.112      
6 Cl -0.040      
7 H 0.153      
8 H 0.140      
9 H 0.142      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.307 -1.156 0.000 1.745
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.178 -0.150 0.000
y -0.150 -36.534 0.000
z 0.000 0.000 -43.542
Traceless
 xyz
x 0.859 -0.150 0.000
y -0.150 4.826 0.000
z 0.000 0.000 -5.686
Polar
3z2-r2-11.371
x2-y2-2.645
xy-0.150
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.677 -1.195 0.000
y -1.195 10.875 0.000
z 0.000 0.000 4.940


<r2> (average value of r2) Å2
<r2> 180.685
(<r2>)1/2 13.442