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

using model chemistry: HF/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-53.910433
Energy at 298.15K-53.914502
HF Energy-53.910433
Nuclear repulsion energy108.880820
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/CEP-121G
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' 3475 3171 0.56      
2 A' 3443 3141 0.32      
3 A' 3421 3122 5.31      
4 A' 1723 1572 29.57      
5 A' 1626 1483 84.30      
6 A' 1496 1365 11.63      
7 A' 1349 1231 16.29      
8 A' 1276 1165 48.19      
9 A' 1209 1104 21.01      
10 A' 1128 1030 28.50      
11 A' 1093 998 28.73      
12 A' 988 902 42.54      
13 A' 967 883 6.68      
14 A' 504 460 3.82      
15 A' 317 289 0.50      
16 A" 1016 927 0.10      
17 A" 955 872 18.94      
18 A" 861 786 109.13      
19 A" 669 610 2.68      
20 A" 642 586 10.25      
21 A" 240 219 4.19      

Unscaled Zero Point Vibrational Energy (zpe) 14198.6 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 12956.3 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 HF/CEP-121G
ABC
0.30867 0.06865 0.05616

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.264 0.000
C2 1.312 -0.064 0.000
C3 1.349 -1.523 0.000
C4 0.061 -1.948 0.000
O5 -0.791 -0.854 0.000
Cl6 -0.821 1.817 0.000
H7 2.140 0.609 0.000
H8 2.223 -2.136 0.000
H9 -0.407 -2.905 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.35262.23832.21271.36921.75732.16793.27143.1950
C21.35261.45872.26132.24652.84471.06712.26343.3204
C32.23831.45871.35612.24173.98302.27351.06812.2346
C42.21272.26131.35611.38683.86743.29542.16991.0654
O51.36922.24652.24171.38682.67143.27593.27542.0870
Cl61.75732.84473.98303.86742.67143.19884.98994.7407
H72.16791.06712.27353.29543.27593.19882.74634.3399
H83.27142.26341.06812.16993.27544.98992.74632.7397
H93.19503.32042.23461.06542.08704.74074.33992.7397

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 105.474 C1 C2 H7 126.860
C1 O5 C4 106.804 C2 C1 O5 111.247
C2 C1 Cl6 131.903 C2 C3 C4 106.852
C2 C3 H8 126.512 C3 C2 H7 127.667
C3 C4 O5 109.623 C3 C4 H9 134.340
C4 C3 H8 126.636 O5 C1 Cl6 116.850
O5 C4 H9 116.037
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.123      
2 C -0.152      
3 C -0.139      
4 C -0.126      
5 O -0.272      
6 Cl 0.111      
7 H 0.245      
8 H 0.230      
9 H 0.227      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.296 -1.723 0.000 2.871
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.452 -0.101 0.000
y -0.101 -36.405 0.000
z 0.000 0.000 -43.697
Traceless
 xyz
x 0.598 -0.101 0.000
y -0.101 5.170 0.000
z 0.000 0.000 -5.768
Polar
3z2-r2-11.537
x2-y2-3.048
xy-0.101
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.042 -1.239 0.000
y -1.239 9.556 0.000
z 0.000 0.000 3.695


<r2> (average value of r2) Å2
<r2> 122.849
(<r2>)1/2 11.084