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 C2H5I (Ethyl iodide)

using model chemistry: B97D3/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/cc-pVTZ-PP
 hartrees
Energy at 0K-375.433153
Energy at 298.15K 
HF Energy-375.433153
Nuclear repulsion energy119.592561
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 B97D3/cc-pVTZ-PP
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' 3057 3057 21.12 86.72 0.09 0.16
2 A' 3040 3040 2.69 117.62 0.45 0.62
3 A' 2970 2970 27.30 283.87 0.13 0.24
4 A' 1471 1471 1.61 7.41 0.73 0.85
5 A' 1454 1454 0.66 5.62 0.74 0.85
6 A' 1383 1383 3.95 4.33 0.58 0.73
7 A' 1202 1202 79.25 14.50 0.34 0.51
8 A' 1043 1043 0.48 3.99 0.63 0.77
9 A' 948 948 17.83 5.07 0.58 0.74
10 A' 471 471 9.03 27.98 0.23 0.37
11 A' 249 249 1.73 5.29 0.30 0.46
12 A" 3120 3120 7.76 36.61 0.75 0.86
13 A" 3070 3070 10.65 68.65 0.75 0.86
14 A" 1455 1455 9.67 8.94 0.75 0.86
15 A" 1233 1233 0.28 0.64 0.75 0.86
16 A" 969 969 0.10 2.88 0.75 0.86
17 A" 737 737 4.65 0.10 0.75 0.86
18 A" 252 252 0.01 0.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14061.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14061.5 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 B97D3/cc-pVTZ-PP
ABC
0.97487 0.09619 0.09054

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVTZ-PP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.611 -1.469 0.000
C2 -0.581 -2.402 0.000
I3 0.000 0.647 0.000
H4 1.229 -1.563 0.892
H5 1.229 -1.563 -0.892
H6 -0.224 -3.441 0.000
H7 -1.205 -2.258 0.886
H8 -1.205 -2.258 -0.886

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.51382.20301.08921.08922.14112.16832.1683
C21.51383.10482.18592.18591.09861.09301.0930
I32.20303.10482.68152.68154.09483.26733.2673
H41.08922.18592.68151.78332.53662.53093.0929
H51.08922.18592.68151.78332.53663.09292.5309
H62.14111.09864.09482.53662.53661.77441.7744
H72.16831.09303.26732.53093.09291.77441.7725
H82.16831.09303.26733.09292.53091.77441.7725

picture of Ethyl iodide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.055 C1 C2 H7 111.543
C1 C2 H8 111.543 C2 C1 I3 111.967
C2 C1 H4 113.220 C2 C1 H5 113.220
I3 C1 H4 103.876 I3 C1 H5 103.876
H4 C1 H5 109.895 H6 C2 H7 108.117
H6 C2 H8 108.117 H7 C2 H8 108.348
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.188      
2 C -0.248      
3 I -0.101      
4 H 0.118      
5 H 0.118      
6 H 0.091      
7 H 0.105      
8 H 0.105      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.372 -2.073 0.000 2.107
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.851 -1.244 0.000
y -1.244 -36.852 0.000
z 0.000 0.000 -41.146
Traceless
 xyz
x -1.852 -1.244 0.000
y -1.244 4.147 0.000
z 0.000 0.000 -2.295
Polar
3z2-r2-4.590
x2-y2-3.999
xy-1.244
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.256 -0.112 0.000
y -0.112 11.282 0.000
z 0.000 0.000 6.855


<r2> (average value of r2) Å2
<r2> 123.126
(<r2>)1/2 11.096