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 CHFClI (fluorochloroiodomethane)

using model chemistry: B2PLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B2PLYP/3-21G
 hartrees
Energy at 0K-7485.256166
Energy at 298.15K 
HF Energy-7485.156446
Nuclear repulsion energy399.367213
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 B2PLYP/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 3212 3212 4.30 95.15 0.26 0.42
2 A 1335 1335 22.85 8.02 0.75 0.86
3 A 1210 1210 114.25 8.19 0.69 0.81
4 A 1111 1111 146.10 3.40 0.71 0.83
5 A 648 648 221.98 12.37 0.61 0.76
6 A 567 567 28.31 16.72 0.23 0.37
7 A 348 348 3.76 9.19 0.31 0.47
8 A 262 262 0.20 6.00 0.61 0.76
9 A 178 178 0.46 9.99 0.55 0.71

Unscaled Zero Point Vibrational Energy (zpe) 4434.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4434.9 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 B2PLYP/3-21G
ABC
0.19181 0.04514 0.03747

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.980 0.537 0.439
H2 1.093 0.633 1.512
F3 1.275 1.710 -0.222
Cl4 2.266 -0.777 -0.070
I5 -1.075 -0.114 -0.018

Atom - Atom Distances (Å)
  C1 H2 F3 Cl4 I5
C11.08331.37781.90832.2031
H21.08332.04872.42262.7560
F31.37782.04872.68202.9813
Cl41.90832.42262.68203.4066
I52.20312.75602.98133.4066

picture of fluorochloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 112.148 H2 C1 Cl4 104.768
H2 C1 I5 109.182 F3 C1 Cl4 108.323
F3 C1 I5 110.601 Cl4 C1 I5 111.702
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.258      
2 H 0.288      
3 F -0.248      
4 Cl -0.008      
5 I 0.225      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.084 0.302 1.559 1.923
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -53.761 1.295 2.230
y 1.295 -54.223 1.411
z 2.230 1.411 -50.866
Traceless
 xyz
x -1.216 1.295 2.230
y 1.295 -1.910 1.411
z 2.230 1.411 3.126
Polar
3z2-r26.252
x2-y20.462
xy1.295
xz2.230
yz1.411


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.345 -0.379 0.226
y -0.379 4.451 0.425
z 0.226 0.425 3.035


<r2> (average value of r2) Å2
<r2> 246.567
(<r2>)1/2 15.702