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All results from a given calculation for C6H6 (Hexa-1,5-diene-3-yne)

using model chemistry: QCISD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-231.443249
Energy at 298.15K-231.446958
HF Energy-230.613126
Nuclear repulsion energy173.039150
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 QCISD/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3279 3146 0.00      
2 Ag 3196 3066 0.00      
3 Ag 3177 3048 0.00      
4 Ag 2309 2215 0.00      
5 Ag 1676 1608 0.00      
6 Ag 1439 1380 0.00      
7 Ag 1320 1267 0.00      
8 Ag 1083 1039 0.00      
9 Ag 715 686 0.00      
10 Ag 511 490 0.00      
11 Ag 210 201 0.00      
12 Au 999 959 43.06      
13 Au 935 897 52.22      
14 Au 669 641 8.47      
15 Au 177 170 5.60      
16 Au 35 34 0.08      
17 Bg 997 956 0.00      
18 Bg 936 898 0.00      
19 Bg 667 640 0.00      
20 Bg 335 322 0.00      
21 Bu 3279 3146 16.64      
22 Bu 3195 3066 21.67      
23 Bu 3177 3048 4.37      
24 Bu 1701 1632 21.96      
25 Bu 1458 1399 5.45      
26 Bu 1317 1263 7.28      
27 Bu 1209 1160 17.32      
28 Bu 1014 973 0.04      
29 Bu 521 500 7.83      
30 Bu 107 102 2.12      

Unscaled Zero Point Vibrational Energy (zpe) 20820.0 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 19974.7 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 QCISD/cc-pVDZ
ABC
0.84302 0.04451 0.04227

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.615 0.000
C2 0.000 -0.615 0.000
C3 0.000 2.060 0.000
C4 0.000 -2.060 0.000
C5 1.128 2.807 0.000
C6 -1.128 -2.807 0.000
H7 -0.983 2.549 0.000
H8 0.983 -2.549 0.000
H9 2.121 2.344 0.000
H10 1.072 3.902 0.000
H11 -2.121 -2.344 0.000
H12 -1.072 -3.902 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.22921.44532.67462.46583.60312.16973.31282.73663.45753.64034.6418
C21.22922.67461.44533.60312.46583.31282.16973.64034.64182.73663.4575
C31.44532.67464.11991.35304.99631.09784.71262.13982.13114.88816.0573
C42.67461.44534.11994.99631.35304.71261.09784.88816.05732.13982.1311
C52.46583.60311.35304.99636.05092.12645.35841.09591.09576.09037.0606
C63.60312.46584.99631.35306.05095.35842.12646.09037.06061.09591.0957
H72.16973.31281.09784.71262.12645.35845.46383.11042.46035.02376.4513
H83.31282.16974.71261.09785.35842.12645.46385.02376.45133.11042.4603
H92.73663.64032.13984.88811.09596.09033.11045.02371.87766.32237.0147
H103.45754.64182.13116.05731.09577.06062.46036.45131.87767.01478.0926
H113.64032.73664.88812.13986.09031.09595.02373.11046.32237.01471.8776
H124.64183.45756.05732.13117.06061.09576.45132.46037.01478.09261.8776

picture of Hexa-1,5-diene-3-yne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 180.000 C1 C3 C5 123.537
C1 C3 H7 116.452 C2 C1 C3 180.000
C2 C4 C6 123.537 C2 C4 H8 116.452
C3 C5 H9 121.454 C3 C5 H10 120.633
C4 C6 H11 121.454 C4 C6 H12 120.633
C5 C3 H7 120.011 C6 C4 H8 120.011
H9 C5 H10 117.913 H11 C6 H12 117.913
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability