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: B3LYPultrafine/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 B3LYPultrafine/6-311G*
 hartrees
Energy at 0K-689.693736
Energy at 298.15K-689.697501
HF Energy-689.693736
Nuclear repulsion energy264.886740
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 B3LYPultrafine/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' 3288 3177 0.35      
2 A' 3266 3156 0.39      
3 A' 3246 3136 3.61      
4 A' 1605 1551 21.25      
5 A' 1509 1459 60.98      
6 A' 1407 1360 17.27      
7 A' 1250 1208 6.38      
8 A' 1195 1155 52.23      
9 A' 1140 1101 11.65      
10 A' 1083 1047 21.50      
11 A' 1029 994 23.04      
12 A' 936 904 31.54      
13 A' 902 872 1.88      
14 A' 488 472 6.16      
15 A' 313 302 0.56      
16 A" 862 833 0.00      
17 A" 796 769 26.58      
18 A" 727 702 57.89      
19 A" 629 608 5.13      
20 A" 612 591 6.43      
21 A" 221 213 2.30      

Unscaled Zero Point Vibrational Energy (zpe) 13251.7 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 12805.1 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 B3LYPultrafine/6-311G*
ABC
0.30932 0.07105 0.05778

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.264 0.000
C2 1.308 -0.099 0.000
C3 1.301 -1.534 0.000
C4 -0.002 -1.913 0.000
O5 -0.818 -0.814 0.000
Cl6 -0.759 1.805 0.000
H7 2.159 0.563 0.000
H8 2.160 -2.187 0.000
H9 -0.510 -2.862 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.35742.21902.17661.35311.71772.17953.26703.1673
C21.35741.43482.23702.24322.81021.07822.25533.3075
C32.21901.43481.35642.23813.92292.26571.07952.2456
C42.17662.23701.35641.36933.79383.28592.17911.0769
O51.35312.24322.23811.36932.61903.28013.27992.0715
Cl61.71772.81023.92293.79382.61903.17124.94544.6735
H72.17951.07822.26573.28593.28013.17122.75024.3422
H83.26702.25531.07952.17913.27994.94542.75022.7540
H93.16733.30752.24561.07692.07154.67354.34222.7540

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 105.220 C1 C2 H7 126.604
C1 O5 C4 106.168 C2 C1 O5 111.707
C2 C1 Cl6 131.737 C2 C3 C4 106.506
C2 C3 H8 126.954 C3 C2 H7 128.175
C3 C4 O5 110.398 C3 C4 H9 134.381
C4 C3 H8 126.539 O5 C1 Cl6 116.556
O5 C4 H9 115.220
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.103      
2 C -0.202      
3 C -0.248      
4 C -0.045      
5 O -0.218      
6 Cl -0.045      
7 H 0.221      
8 H 0.209      
9 H 0.224      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.331 -1.288 0.000 1.852
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.009 0.022 0.000
y 0.022 -36.426 0.000
z 0.000 0.000 -43.673
Traceless
 xyz
x 1.040 0.022 0.000
y 0.022 4.916 0.000
z 0.000 0.000 -5.956
Polar
3z2-r2-11.911
x2-y2-2.584
xy0.022
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.135 -1.364 0.000
y -1.364 10.665 0.000
z 0.000 0.000 3.716


<r2> (average value of r2) Å2
<r2> 180.456
(<r2>)1/2 13.433