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

using model chemistry: MP3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-1149.608229
Energy at 298.15K 
HF Energy-1148.514335
Nuclear repulsion energy448.650178
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 MP3/6-31+G**
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 3314 3083 0.00      
2 Ag 1691 1573 0.00      
3 Ag 1233 1147 0.00      
4 Ag 1150 1071 0.00      
5 Ag 780 726 0.00      
6 Ag 338 314 0.00      
7 Au 924 860 0.00      
8 Au 391 364 0.00      
9 B1g 827 769 0.00      
10 B1u 3298 3069 1.71      
11 B1u 1563 1455 96.47      
12 B1u 1156 1075 94.09      
13 B1u 1043 971 49.71      
14 B1u 568 528 24.50      
15 B2g 875 814 0.00      
16 B2g 278 259 0.00      
17 B2g 508i 472i 0.00      
18 B2u 3312 3082 2.57      
19 B2u 1465 1363 5.23      
20 B2u 1280 1191 0.32      
21 B2u 1153 1073 3.78      
22 B2u 223 208 0.83      
23 B3g 3298 3069 0.00      
24 B3g 1669 1553 0.00      
25 B3g 1352 1258 0.00      
26 B3g 649 604 0.00      
27 B3g 358 333 0.00      
28 B3u 795 740 70.77      
29 B3u 401 373 12.48      
30 B3u 98 91 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 17487.1 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 16271.8 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 MP3/6-31+G**
ABC
0.18930 0.02218 0.01986

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.386
C2 0.000 0.000 -1.386
C3 0.000 1.212 0.698
C4 0.000 -1.212 0.698
C5 0.000 -1.212 -0.698
C6 0.000 1.212 -0.698
Cl7 0.000 0.000 3.128
Cl8 0.000 0.000 -3.128
H9 0.000 2.144 1.242
H10 0.000 -2.144 1.242
H11 0.000 -2.144 -1.242
H12 0.000 2.144 -1.242

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.77251.39411.39412.41072.41071.74174.51422.14912.14913.39173.3917
C22.77252.41072.41071.39411.39414.51421.74173.39173.39172.14912.1491
C31.39412.41072.42412.79691.39512.71594.01291.07943.40013.87622.1516
C41.39412.41072.42411.39512.79692.71594.01293.40011.07942.15163.8762
C52.41071.39412.79691.39512.42414.01292.71593.87622.15161.07943.4001
C62.41071.39411.39512.79692.42414.01292.71592.15163.87623.40011.0794
Cl71.74174.51422.71592.71594.01294.01296.25592.85592.85594.86734.8673
Cl84.51421.74174.01294.01292.71592.71596.25594.86734.86732.85592.8559
H92.14913.39171.07943.40013.87622.15162.85594.86734.28854.95562.4832
H102.14913.39173.40011.07942.15163.87622.85594.86734.28852.48324.9556
H113.39172.14913.87622.15161.07943.40014.86732.85594.95562.48324.2885
H123.39172.14912.15163.87623.40011.07944.86732.85592.48324.95564.2885

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 119.607 C1 C3 H9 120.123
C1 C4 C5 119.607 C1 C4 H10 120.123
C2 C5 C4 119.607 C2 C5 H11 120.123
C2 C6 C3 119.607 C2 C6 H12 120.123
C3 C1 C4 120.786 C3 C1 Cl7 119.607
C3 C6 H12 120.271 C4 C1 Cl7 119.607
C4 C5 H11 120.271 C5 C2 C6 120.786
C5 C2 Cl8 119.607 C5 C4 H10 120.271
C6 C2 Cl8 119.607 C6 C3 H9 120.271
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability