return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP4/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at MP4/6-311G**
 hartrees
Energy at 0K-1149.791833
Energy at 298.15K-1149.795569
HF Energy-1148.593648
Nuclear repulsion energy446.677798
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 MP4/6-311G**
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 3212 3115        
2 Ag 1610 1561        
3 Ag 1187 1151        
4 Ag 1114 1080        
5 Ag 752 729        
6 Ag 328 318        
7 Au 888 861        
8 Au 394 382        
9 B1g 791 767        
10 B1u 3196 3099        
11 B1u 1497 1452        
12 B1u 1114 1080        
13 B1u 1005 975        
14 B1u 553 537        
15 B2g 852 827        
16 B2g 358 347        
17 B2g 277 269        
18 B2u 3210 3113        
19 B2u 1410 1367        
20 B2u 1331 1290        
21 B2u 1111 1077        
22 B2u 216 210        
23 B3g 3197 3101        
24 B3g 1598 1550        
25 B3g 1300 1261        
26 B3g 627 608        
27 B3g 346 335        
28 B3u 759 736        
29 B3u 442 428        
30 B3u 101 98        

Unscaled Zero Point Vibrational Energy (zpe) 17387.9 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 16861.0 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 MP4/6-311G**
ABC
0.18710 0.02201 0.01970

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.394
C2 0.000 0.000 -1.394
C3 0.000 1.219 0.701
C4 0.000 -1.219 0.701
C5 0.000 -1.219 -0.701
C6 0.000 1.219 -0.701
Cl7 0.000 0.000 3.139
Cl8 0.000 0.000 -3.139
H9 0.000 2.157 1.251
H10 0.000 -2.157 1.251
H11 0.000 -2.157 -1.251
H12 0.000 2.157 -1.251

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.78871.40241.40242.42432.42431.74484.53342.16192.16193.41383.4138
C22.78872.42432.42431.40241.40244.53341.74483.41383.41382.16192.1619
C31.40242.42432.43832.81271.40232.72584.02911.08763.42093.90032.1663
C41.40242.42432.43831.40232.81272.72584.02913.42091.08762.16633.9003
C52.42431.40242.81271.40232.43834.02912.72583.90032.16631.08763.4209
C62.42431.40241.40232.81272.43834.02912.72582.16633.90033.42091.0876
Cl71.74484.53342.72582.72584.02914.02916.27822.86652.86654.89194.8919
Cl84.53341.74484.02914.02912.72582.72586.27824.89194.89192.86652.8665
H92.16193.41381.08763.42093.90032.16632.86654.89194.31444.98792.5030
H102.16193.41383.42091.08762.16633.90032.86654.89194.31442.50304.9879
H113.41382.16193.90032.16631.08763.42094.89192.86654.98792.50304.3144
H123.41382.16192.16633.90033.42091.08764.89192.86652.50304.98794.3144

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 119.622 C1 C3 H9 119.980
C1 C4 C5 119.622 C1 C4 H10 119.980
C2 C5 C4 119.622 C2 C5 H11 119.980
C2 C6 C3 119.622 C2 C6 H12 119.980
C3 C1 C4 120.756 C3 C1 Cl7 119.622
C3 C6 H12 120.398 C4 C1 Cl7 119.622
C4 C5 H11 120.398 C5 C2 C6 120.756
C5 C2 Cl8 119.622 C5 C4 H10 120.398
C6 C2 Cl8 119.622 C6 C3 H9 120.398
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability