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: TPSSh/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/aug-cc-pVDZ
 hartrees
Energy at 0K-689.685203
Energy at 298.15K-689.688953
HF Energy-689.685203
Nuclear repulsion energy264.185726
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 TPSSh/aug-cc-pVDZ
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' 3295 3188 0.02      
2 A' 3278 3171 0.20      
3 A' 3254 3148 2.79      
4 A' 1597 1545 16.36      
5 A' 1511 1461 62.36      
6 A' 1400 1354 13.06      
7 A' 1235 1195 3.81      
8 A' 1191 1152 52.98      
9 A' 1136 1099 7.43      
10 A' 1074 1039 17.48      
11 A' 1022 989 25.94      
12 A' 919 889 26.64      
13 A' 882 854 2.38      
14 A' 491 475 5.29      
15 A' 305 295 0.59      
16 A" 853 825 0.05      
17 A" 791 765 25.31      
18 A" 723 699 59.59      
19 A" 611 591 3.01      
20 A" 603 584 5.72      
21 A" 221 214 1.90      

Unscaled Zero Point Vibrational Energy (zpe) 13195.7 cm-1
Scaled (by 0.9673) Zero Point Vibrational Energy (zpe) 12764.2 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 TPSSh/aug-cc-pVDZ
ABC
0.30610 0.07092 0.05758

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.270 0.000
C2 1.318 -0.086 0.000
C3 1.320 -1.523 0.000
C4 0.014 -1.916 0.000
O5 -0.815 -0.819 0.000
Cl6 -0.780 1.797 0.000
H7 2.166 0.589 0.000
H8 2.188 -2.174 0.000
H9 -0.488 -2.875 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.36502.22632.18581.35971.71462.18933.28063.1825
C21.36501.43672.24682.25522.81881.08372.26253.3225
C32.22631.43671.36392.24863.92812.27441.08532.2579
C42.18582.24681.36391.37563.79673.30192.18921.0826
O51.35972.25522.24861.37562.61543.29653.29522.0825
Cl61.71462.81883.92813.79672.61543.18414.95784.6809
H72.18931.08372.27443.30193.29653.18412.76314.3634
H83.28062.26251.08532.18923.29524.95782.76312.7661
H93.18253.32252.25791.08262.08254.68094.36342.7661

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 105.208 C1 C2 H7 126.390
C1 O5 C4 106.087 C2 C1 O5 111.723
C2 C1 Cl6 132.171 C2 C3 C4 106.657
C2 C3 H8 127.003 C3 C2 H7 128.402
C3 C4 O5 110.325 C3 C4 H9 134.387
C4 C3 H8 126.340 O5 C1 Cl6 116.106
O5 C4 H9 115.288
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.222      
2 C 1.012      
3 C 0.901      
4 C 0.110      
5 O -0.448      
6 Cl -0.238      
7 H -0.349      
8 H -0.388      
9 H -0.378      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.269 -1.168 0.000 1.725
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.760 -1.265 0.000
y -1.265 12.280 0.000
z 0.000 0.000 6.271


<r2> (average value of r2) Å2
<r2> 180.986
(<r2>)1/2 13.453