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

using model chemistry: LSDA/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 LSDA/3-21G*
 hartrees
Energy at 0K-1142.403970
Energy at 298.15K-1142.408160
HF Energy-1142.403970
Nuclear repulsion energy450.323764
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 LSDA/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 3163 3106 0.00      
2 Ag 1602 1573 0.00      
3 Ag 1195 1174 0.00      
4 Ag 1121 1101 0.00      
5 Ag 764 750 0.00      
6 Ag 337 331 0.00      
7 Au 960 943 0.00      
8 Au 422 415 0.00      
9 B1g 812 797 0.00      
10 B1u 3148 3091 0.01      
11 B1u 1488 1461 124.20      
12 B1u 1107 1087 100.32      
13 B1u 1035 1017 26.95      
14 B1u 557 547 33.78      
15 B2g 960 943 0.00      
16 B2g 731 718 0.00      
17 B2g 300 294 0.00      
18 B2u 3160 3103 1.78      
19 B2u 1412 1386 9.95      
20 B2u 1364 1340 0.28      
21 B2u 1118 1098 9.04      
22 B2u 222 218 0.80      
23 B3g 3148 3092 0.00      
24 B3g 1590 1562 0.00      
25 B3g 1310 1286 0.00      
26 B3g 652 640 0.00      
27 B3g 356 349 0.00      
28 B3u 826 811 76.20      
29 B3u 490 481 30.66      
30 B3u 102 100 0.25      

Unscaled Zero Point Vibrational Energy (zpe) 17725.6 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 17406.5 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 LSDA/3-21G*
ABC
0.18990 0.02241 0.02004

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.380
C2 0.000 0.000 -1.380
C3 0.000 1.209 0.694
C4 0.000 -1.209 0.694
C5 0.000 -1.209 -0.694
C6 0.000 1.209 -0.694
Cl7 0.000 0.000 3.111
Cl8 0.000 0.000 -3.111
H9 0.000 2.149 1.253
H10 0.000 -2.149 1.253
H11 0.000 -2.149 -1.253
H12 0.000 2.149 -1.253

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.76061.39001.39002.40132.40131.73104.49172.15252.15253.39843.3984
C22.76062.40132.40131.39001.39004.49171.73103.39843.39842.15252.1525
C31.39002.40132.41802.78851.38892.70243.99321.09293.40373.88132.1619
C41.39002.40132.41801.38892.78852.70243.99323.40371.09292.16193.8813
C52.40131.39002.78851.38892.41803.99322.70243.88132.16191.09293.4037
C62.40131.39001.38892.78852.41803.99322.70242.16193.88133.40371.0929
Cl71.73104.49172.70242.70243.99323.99326.22272.84112.84114.86424.8642
Cl84.49171.73103.99323.99322.70242.70246.22274.86424.86422.84112.8411
H92.15253.39841.09293.40373.88132.16192.84114.86424.29734.97422.5051
H102.15253.39843.40371.09292.16193.88132.84114.86424.29732.50514.9742
H113.39842.15253.88132.16191.09293.40374.86422.84114.97422.50514.2973
H123.39842.15252.16193.88133.40371.09294.86422.84112.50514.97424.2973

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 119.566 C1 C3 H9 119.727
C1 C4 C5 119.566 C1 C4 H10 119.727
C2 C5 C4 119.566 C2 C5 H11 119.727
C2 C6 C3 119.566 C2 C6 H12 119.727
C3 C1 C4 120.868 C3 C1 Cl7 119.566
C3 C6 H12 120.707 C4 C1 Cl7 119.566
C4 C5 H11 120.707 C5 C2 C6 120.868
C5 C2 Cl8 119.566 C5 C4 H10 120.707
C6 C2 Cl8 119.566 C6 C3 H9 120.707
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.190      
2 C -0.190      
3 C -0.180      
4 C -0.180      
5 C -0.180      
6 C -0.180      
7 Cl 0.069      
8 Cl 0.069      
9 H 0.240      
10 H 0.240      
11 H 0.240      
12 H 0.240      


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 -63.328 0.000 0.000
y 0.000 -51.636 0.000
z 0.000 0.000 -63.611
Traceless
 xyz
x -5.704 0.000 0.000
y 0.000 11.834 0.000
z 0.000 0.000 -6.130
Polar
3z2-r2-12.259
x2-y2-11.692
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.674 0.000 0.000
y 0.000 10.921 0.000
z 0.000 0.000 18.545


<r2> (average value of r2) Å2
<r2> 460.575
(<r2>)1/2 21.461