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All results from a given calculation for C6H4Cl2 (1,4-dichlorobenzene)

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 D2H 1AG
Energy calculated at BLYP/3-21G*
 hartrees
Energy at 0K-1145.851143
Energy at 298.15K-1145.855175
HF Energy-1145.851143
Nuclear repulsion energy443.136658
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 Ag 3160 3140 0.00      
2 Ag 1538 1528 0.00      
3 Ag 1202 1194 0.00      
4 Ag 1057 1050 0.00      
5 Ag 732 727 0.00      
6 Ag 319 317 0.00      
7 Au 955 949 0.00      
8 Au 418 416 0.00      
9 B1g 810 804 0.00      
10 B1u 3144 3124 1.04      
11 B1u 1480 1470 83.78      
12 B1u 1067 1060 129.64      
13 B1u 1026 1020 33.36      
14 B1u 509 506 44.36      
15 B2g 950 944 0.00      
16 B2g 711 706 0.00      
17 B2g 289 287 0.00      
18 B2u 3157 3137 1.62      
19 B2u 1389 1380 8.21      
20 B2u 1268 1260 0.32      
21 B2u 1114 1107 4.51      
22 B2u 214 212 0.95      
23 B3g 3145 3124 0.00      
24 B3g 1535 1525 0.00      
25 B3g 1329 1320 0.00      
26 B3g 647 643 0.00      
27 B3g 348 345 0.00      
28 B3u 818 813 64.01      
29 B3u 482 479 21.22      
30 B3u 99 99 0.46      

Unscaled Zero Point Vibrational Energy (zpe) 17454.7 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 17341.2 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
0.18570 0.02160 0.01935

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.393
C2 0.000 0.000 -1.393
C3 0.000 1.224 0.703
C4 0.000 -1.224 0.703
C5 0.000 -1.224 -0.703
C6 0.000 1.224 -0.703
Cl7 0.000 0.000 3.173
Cl8 0.000 0.000 -3.173
H9 0.000 2.163 1.255
H10 0.000 -2.163 1.255
H11 0.000 -2.163 -1.255
H12 0.000 2.163 -1.255

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.78521.40491.40492.42702.42701.78014.56532.16722.16723.41883.4188
C22.78522.42702.42701.40491.40494.56531.78013.41883.41882.16722.1672
C31.40492.42702.44812.82331.40632.75624.06451.08903.43153.91232.1717
C41.40492.42702.44811.40632.82332.75624.06453.43151.08902.17173.9123
C52.42701.40492.82331.40632.44814.06452.75623.91232.17171.08903.4315
C62.42701.40491.40632.82332.44814.06452.75622.17173.91233.43151.0890
Cl71.78014.56532.75622.75624.06454.06456.34532.89042.89044.92784.9278
Cl84.56531.78014.06454.06452.75622.75626.34534.92784.92782.89042.8904
H92.16723.41881.08903.43153.91232.17172.89044.92784.32565.00122.5103
H102.16723.41883.43151.08902.17173.91232.89044.92784.32562.51035.0012
H113.41882.16723.91232.17171.08903.43154.92782.89045.00122.51034.3256
H123.41882.16722.17173.91233.43151.08904.92782.89042.51035.00124.3256

picture of 1,4-dichlorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C6 119.390 C1 C3 H9 120.154
C1 C4 C5 119.390 C1 C4 H10 120.154
C2 C5 C4 119.390 C2 C5 H11 120.154
C2 C6 C3 119.390 C2 C6 H12 120.154
C3 C1 C4 121.221 C3 C1 Cl7 119.390
C3 C6 H12 120.457 C4 C1 Cl7 119.390
C4 C5 H11 120.457 C5 C2 C6 121.221
C5 C2 Cl8 119.390 C5 C4 H10 120.457
C6 C2 Cl8 119.390 C6 C3 H9 120.457
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 -0.142      
2 C -0.142      
3 C -0.144      
4 C -0.144      
5 C -0.144      
6 C -0.144      
7 Cl 0.031      
8 Cl 0.031      
9 H 0.200      
10 H 0.200      
11 H 0.200      
12 H 0.200      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -63.234 0.000 0.000
y 0.000 -52.258 0.000
z 0.000 0.000 -65.344
Traceless
 xyz
x -4.433 0.000 0.000
y 0.000 12.030 0.000
z 0.000 0.000 -7.597
Polar
3z2-r2-15.195
x2-y2-10.975
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.664 0.000 0.000
y 0.000 11.112 0.000
z 0.000 0.000 19.133


<r2> (average value of r2) Å2
<r2> 475.997
(<r2>)1/2 21.817