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: B2PLYP=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at B2PLYP=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-1150.985432
Energy at 298.15K-1150.989651
HF Energy-1150.545573
Nuclear repulsion energy449.679149
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 B2PLYP=FULL/6-31G(2df,p)
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 3249 3249 0.00      
2 Ag 1622 1622 0.00      
3 Ag 1203 1203 0.00      
4 Ag 1121 1121 0.00      
5 Ag 759 759 0.00      
6 Ag 332 332 0.00      
7 Au 955 955 0.00      
8 Au 422 422 0.00      
9 B1g 843 843 0.00      
10 B1u 3234 3234 0.81      
11 B1u 1511 1511 102.01      
12 B1u 1116 1116 99.32      
13 B1u 1024 1024 52.77      
14 B1u 556 556 30.56      
15 B2g 964 964 0.00      
16 B2g 716 716 0.00      
17 B2g 301 301 0.00      
18 B2u 3248 3248 0.59      
19 B2u 1424 1424 7.24      
20 B2u 1348 1348 0.03      
21 B2u 1128 1128 4.95      
22 B2u 222 222 1.16      
23 B3g 3235 3235 0.00      
24 B3g 1621 1621 0.00      
25 B3g 1318 1318 0.00      
26 B3g 636 636 0.00      
27 B3g 356 356 0.00      
28 B3u 846 846 44.77      
29 B3u 503 503 10.90      
30 B3u 104 104 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 17958.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17958.9 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 B2PLYP=FULL/6-31G(2df,p)
ABC
0.18966 0.02232 0.01997

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.379
C2 0.000 0.000 -1.379
C3 0.000 1.211 0.695
C4 0.000 -1.211 0.695
C5 0.000 -1.211 -0.695
C6 0.000 1.211 -0.695
Cl7 0.000 0.000 3.119
Cl8 0.000 0.000 -3.119
H9 0.000 2.143 1.244
H10 0.000 -2.143 1.244
H11 0.000 -2.143 -1.244
H12 0.000 2.143 -1.244

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.75731.39041.39042.40162.40161.74024.49752.14682.14683.38663.3866
C22.75732.40162.40161.39041.39044.49751.74023.38663.38662.14682.1468
C31.39042.40162.42172.79261.39062.70924.00171.08133.39803.87382.1515
C41.39042.40162.42171.39062.79262.70924.00173.39801.08132.15153.8738
C52.40161.39042.79261.39062.42174.00172.70923.87382.15151.08133.3980
C62.40161.39041.39062.79262.42174.00172.70922.15153.87383.39801.0813
Cl71.74024.49752.70922.70924.00174.00176.23772.84712.84714.86054.8605
Cl84.49751.74024.00174.00172.70922.70926.23774.86054.86052.84712.8471
H92.14683.38661.08133.39803.87382.15152.84714.86054.28524.95502.4879
H102.14683.38663.39801.08132.15153.87382.84714.86054.28522.48794.9550
H113.38662.14683.87382.15151.08133.39804.86052.84714.95502.48794.2852
H123.38662.14682.15153.87383.39801.08134.86052.84712.48794.95504.2852

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 119.439 C1 C3 H9 120.070
C1 C4 C5 119.439 C1 C4 H10 120.070
C2 C5 C4 119.439 C2 C5 H11 120.070
C2 C6 C3 119.439 C2 C6 H12 120.070
C3 C1 C4 121.123 C3 C1 Cl7 119.439
C3 C6 H12 120.491 C4 C1 Cl7 119.439
C4 C5 H11 120.491 C5 C2 C6 121.123
C5 C2 Cl8 119.439 C5 C4 H10 120.491
C6 C2 Cl8 119.439 C6 C3 H9 120.491
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability