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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: BLYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/3-21G*
 hartrees
Energy at 0K-428.247380
Energy at 298.15K-428.252119
Nuclear repulsion energy342.541184
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 BLYP/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 A1 3158 3137 1.34      
2 A1 3140 3120 10.43      
3 A1 1564 1553 10.67      
4 A1 1513 1503 117.67      
5 A1 1303 1294 8.37      
6 A1 1285 1276 55.74      
7 A1 1191 1184 0.49      
8 A1 1025 1019 4.96      
9 A1 752 747 15.85      
10 A1 584 580 3.43      
11 A1 269 267 0.28      
12 A2 988 981 0.00      
13 A2 872 866 0.00      
14 A2 747 742 0.00      
15 A2 573 569 0.00      
16 A2 188 187 0.00      
17 B1 955 949 11.63      
18 B1 763 758 85.00      
19 B1 480 477 4.12      
20 B1 302 300 0.04      
21 B2 3152 3131 5.42      
22 B2 3127 3107 1.29      
23 B2 1580 1570 3.36      
24 B2 1466 1456 8.10      
25 B2 1282 1274 4.64      
26 B2 1218 1210 15.52      
27 B2 1112 1105 15.82      
28 B2 864 859 12.46      
29 B2 533 529 1.94      
30 B2 428 425 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 18205.3 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 18087.0 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 BLYP/3-21G*
ABC
0.10598 0.07182 0.04281

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.705 -0.541
C2 0.000 -0.705 -0.541
C3 0.000 -1.401 0.674
C4 0.000 -0.703 1.893
C5 0.000 0.703 1.893
C6 0.000 1.401 0.674
F7 0.000 1.380 -1.737
F8 0.000 -1.380 -1.737
H9 0.000 -2.489 0.645
H10 0.000 -1.254 2.835
H11 0.000 1.254 2.835
H12 0.000 2.489 0.645

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.40942.43112.81212.43441.40091.37372.40373.40693.90283.42032.1427
C21.40941.40092.43442.81212.43112.40371.37372.14273.42033.90283.4069
C32.43111.40091.40412.43102.80103.68112.41191.08892.16513.42213.8897
C42.81212.43441.40411.40592.43104.18573.69312.17901.09072.17133.4274
C52.43442.81212.43101.40591.40413.69314.18573.42742.17131.09072.1790
C61.40092.43112.80102.43101.40412.41193.68113.88973.42212.16511.0889
F71.37372.40373.68114.18573.69312.41192.76084.54405.27644.57372.6276
F82.40371.37372.41193.69314.18573.68112.76082.62764.57375.27644.5440
H93.40692.14271.08892.17903.42743.88974.54402.62762.51414.33614.9781
H103.90283.42032.16511.09072.17133.42215.27644.57372.51412.50734.3361
H113.42033.90283.42212.17131.09072.16514.57375.27644.33612.50732.5141
H122.14273.40693.88973.42742.17901.08892.62764.54404.97814.33612.5141

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 119.782 C1 C2 F8 119.466
C1 C6 C5 120.430 C1 C6 H12 118.228
C2 C1 C6 119.782 C2 C1 F7 119.466
C2 C3 C4 120.430 C2 C3 H9 118.228
C3 C2 F8 120.752 C3 C4 C5 119.787
C3 C4 H10 119.890 C4 C3 H9 121.342
C4 C5 C6 119.787 C4 C5 H11 120.323
C5 C4 H10 120.323 C5 C6 H12 121.342
C6 C1 F7 120.752 C6 C5 H11 119.890
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.237      
2 C 0.237      
3 C -0.195      
4 C -0.166      
5 C -0.166      
6 C -0.195      
7 F -0.245      
8 F -0.245      
9 H 0.193      
10 H 0.175      
11 H 0.175      
12 H 0.193      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.128 2.128
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.506 0.000 0.000
y 0.000 -40.165 0.000
z 0.000 0.000 -43.095
Traceless
 xyz
x -4.876 0.000 0.000
y 0.000 4.635 0.000
z 0.000 0.000 0.241
Polar
3z2-r20.482
x2-y2-6.341
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.388 0.000 0.000
y 0.000 10.218 0.000
z 0.000 0.000 10.782


<r2> (average value of r2) Å2
<r2> 235.547
(<r2>)1/2 15.348