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All results from a given calculation for C2H5 (Ethyl radical)

using model chemistry: ROHF/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at ROHF/aug-cc-pVTZ
 hartrees
Energy at 0K-78.624281
Energy at 298.15K-78.628339
HF Energy-78.624281
Nuclear repulsion energy37.071939
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 ROHF/aug-cc-pVTZ
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' 3272 3272 18.50      
2 A' 3185 3185 33.98      
3 A' 3127 3127 37.19      
4 A' 1602 1602 3.56      
5 A' 1588 1588 2.31      
6 A' 1526 1526 0.10      
7 A' 1105 1105 0.27      
8 A' 1071 1071 0.40      
9 A' 527 527 46.61      
10 A" 3368 3368 23.76      
11 A" 3216 3216 32.70      
12 A" 1604 1604 4.56      
13 A" 1302 1302 1.64      
14 A" 864 864 0.78      
15 A" 202 202 0.68      

Unscaled Zero Point Vibrational Energy (zpe) 13779.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13779.5 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 ROHF/aug-cc-pVTZ
ABC
3.49831 0.75784 0.70554

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.021 -0.697 0.000
C2 -0.021 0.798 0.000
H3 0.991 -1.096 0.000
H4 -0.522 -1.090 0.877
H5 -0.522 -1.090 -0.877
H6 0.154 1.333 -0.914
H7 0.154 1.333 0.914

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6 H7
C11.49521.08841.08361.08362.23282.2328
C21.49522.14802.14132.14131.07311.0731
H31.08842.14801.74881.74882.72702.7270
H41.08362.14131.74881.75413.08762.5154
H51.08362.14131.74881.75412.51543.0876
H62.23281.07312.72703.08762.51541.8278
H72.23281.07312.72702.51543.08761.8278

picture of Ethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 119.875 C1 C2 H7 119.875
C2 C1 H3 111.512 C2 C1 H4 111.266
C2 C1 H5 111.266 H3 C1 H4 107.259
H3 C1 H5 107.259 H4 C1 H5 108.074
H6 C2 H7 116.789
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.695      
2 C -0.957      
3 H 0.282      
4 H 0.276      
5 H 0.276      
6 H 0.409      
7 H 0.409      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.262 -0.216 0.000 0.340
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.232 0.430 0.000
y 0.430 -14.607 0.001
z 0.000 0.001 -13.693
Traceless
 xyz
x -1.082 0.430 0.000
y 0.430 -0.145 0.001
z 0.000 0.001 1.227
Polar
3z2-r22.454
x2-y2-0.625
xy0.430
xz0.000
yz0.001


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


<r2> (average value of r2) Å2
<r2> 27.719
(<r2>)1/2 5.265