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

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-686.087599
Energy at 298.15K-686.091406
HF Energy-686.087599
Nuclear repulsion energy261.204670
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 mPW1PW91/3-21G
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' 3366 3213 0.80      
2 A' 3347 3196 2.28      
3 A' 3320 3169 0.81      
4 A' 1615 1541 29.77      
5 A' 1513 1444 41.84      
6 A' 1401 1338 20.25      
7 A' 1278 1220 10.55      
8 A' 1191 1137 35.33      
9 A' 1148 1096 13.81      
10 A' 1060 1012 16.56      
11 A' 1039 992 15.39      
12 A' 928 886 16.48      
13 A' 911 870 22.17      
14 A' 465 444 6.13      
15 A' 279 267 0.17      
16 A" 941 898 1.64      
17 A" 886 846 23.83      
18 A" 775 740 84.71      
19 A" 649 619 0.46      
20 A" 624 595 9.51      
21 A" 230 220 3.11      

Unscaled Zero Point Vibrational Energy (zpe) 13482.3 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 12870.2 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 mPW1PW91/3-21G
ABC
0.30526 0.06843 0.05590

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.256 0.000
C2 1.307 -0.096 0.000
C3 1.323 -1.539 0.000
C4 0.030 -1.956 0.000
O5 -0.826 -0.846 0.000
Cl6 -0.779 1.841 0.000
H7 2.149 0.571 0.000
H8 2.198 -2.165 0.000
H9 -0.453 -2.914 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.35372.22972.21181.37711.76602.17183.26963.2019
C21.35371.44282.25622.26142.84671.07392.25233.3222
C32.22971.44281.35922.25863.98012.26551.07562.2460
C42.21182.25621.35921.40173.88173.29782.17831.0726
O51.37712.26142.25861.40172.68703.29533.29942.1016
Cl61.76602.84673.98013.88172.68703.19134.99064.7659
H72.17181.07392.26553.29783.29533.19132.73624.3487
H83.26962.25231.07562.17833.29944.99062.73622.7543
H93.20193.32222.24601.07262.10164.76594.34872.7543

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 105.707 C1 C2 H7 126.531
C1 O5 C4 105.486 C2 C1 O5 111.807
C2 C1 Cl6 131.243 C2 C3 C4 107.227
C2 C3 H8 126.230 C3 C2 H7 127.761
C3 C4 O5 109.773 C3 C4 H9 134.582
C4 C3 H8 126.544 O5 C1 Cl6 116.950
O5 C4 H9 115.645
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.005      
2 C -0.261      
3 C -0.280      
4 C 0.050      
5 O -0.477      
6 Cl 0.211      
7 H 0.248      
8 H 0.239      
9 H 0.265      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.694 -1.549 0.000 2.296
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.783 -0.048 0.000
y -0.048 -35.705 0.000
z 0.000 0.000 -43.921
Traceless
 xyz
x 1.030 -0.048 0.000
y -0.048 5.647 0.000
z 0.000 0.000 -6.677
Polar
3z2-r2-13.354
x2-y2-3.078
xy-0.048
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.162 -1.294 0.000
y -1.294 9.569 0.000
z 0.000 0.000 2.222


<r2> (average value of r2) Å2
<r2> 185.284
(<r2>)1/2 13.612