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All results from a given calculation for CH3CH2O (Ethoxy radical)

using model chemistry: ROHF/cc-pVQZ

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/cc-pVQZ
 hartrees
Energy at 0K-153.530767
Energy at 298.15K 
HF Energy-153.530767
Nuclear repulsion energy74.425541
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/cc-pVQZ
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' 3222 3222 40.58      
2 A' 3162 3162 14.84      
3 A' 3136 3136 31.66      
4 A' 1614 1614 4.47      
5 A' 1568 1568 9.41      
6 A' 1542 1542 14.74      
7 A' 1507 1507 6.52      
8 A' 1194 1194 7.19      
9 A' 1149 1149 35.81      
10 A' 954 954 2.29      
11 A' 457 457 5.87      
12 A" 3233 3233 47.40      
13 A" 3162 3162 14.71      
14 A" 1600 1600 3.32      
15 A" 1368 1368 0.36      
16 A" 922 922 0.00      
17 A" 263 263 3.26      
18 A" 205i 205i 16.03      

Unscaled Zero Point Vibrational Energy (zpe) 14922.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14922.8 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/cc-pVQZ
ABC
1.30817 0.32385 0.28676

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.046 -0.572 0.000
C2 0.000 0.527 0.000
O3 -1.300 0.058 0.000
H4 2.043 -0.147 0.000
H5 0.941 -1.198 0.877
H6 0.941 -1.198 -0.877
H7 0.101 1.171 0.870
H8 0.101 1.171 -0.870

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.51712.42881.08391.08261.08262.16522.1652
C21.51711.38212.15092.15202.15201.08701.0870
O32.42881.38213.34892.71482.71481.98981.9898
H41.08392.15093.34891.75701.75702.50262.5026
H51.08262.15202.71481.75701.75472.51363.0611
H61.08262.15202.71481.75701.75473.06112.5136
H72.16521.08701.98982.50262.51363.06111.7396
H82.16521.08701.98982.50263.06112.51361.7396

picture of Ethoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 113.724 C1 C2 H7 111.421
C1 C2 H8 111.421 C2 C1 H4 110.459
C2 C1 H5 110.630 C2 C1 H6 110.630
O3 C2 H7 106.777 O3 C2 H8 106.777
H4 C1 H5 108.384 H4 C1 H6 108.384
H5 C1 H6 108.275 H7 C2 H8 106.288
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.200      
2 C 0.132      
3 O -0.270      
4 H 0.055      
5 H 0.075      
6 H 0.075      
7 H 0.066      
8 H 0.066      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.842 0.624 0.000 1.944
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.282 0.090 0.000
y 0.090 -18.911 0.000
z 0.000 0.000 -17.983
Traceless
 xyz
x -3.835 0.090 0.000
y 0.090 1.222 0.000
z 0.000 0.000 2.613
Polar
3z2-r25.226
x2-y2-3.371
xy0.090
xz0.000
yz0.000


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> 50.711
(<r2>)1/2 7.121