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

using model chemistry: QCISD(T)/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(T)/cc-pVDZ
 hartrees
Energy at 0K-231.478624
Energy at 298.15K-231.482215
HF Energy-230.610875
Nuclear repulsion energy172.634419
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(T)/cc-pVDZ
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 3263 3110        
2 Ag 3174 3025        
3 Ag 3158 3010        
4 Ag 2247 2142        
5 Ag 1636 1559        
6 Ag 1423 1356        
7 Ag 1304 1243        
8 Ag 1070 1020        
9 Ag 707 674        
10 Ag 494 471        
11 Ag 200 190        
12 Au 978 932        
13 Au 903 860        
14 Au 652 621        
15 Au 173 165        
16 Au 40 38        
17 Bg 975 929        
18 Bg 904 861        
19 Bg 642 612        
20 Bg 310 295        
21 Bu 3263 3110        
22 Bu 3174 3025        
23 Bu 3158 3010        
24 Bu 1662 1584        
25 Bu 1444 1377        
26 Bu 1301 1240        
27 Bu 1201 1144        
28 Bu 1005 958        
29 Bu 514 490        
30 Bu 105 100        

Unscaled Zero Point Vibrational Energy (zpe) 20540.2 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 19576.8 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 QCISD(T)/cc-pVDZ
ABC
0.83620 0.04434 0.04211

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.618 0.000
C2 0.000 -0.618 0.000
C3 0.000 2.062 0.000
C4 0.000 -2.062 0.000
C5 1.135 2.812 0.000
C6 -1.135 -2.812 0.000
H7 -0.983 2.554 0.000
H8 0.983 -2.554 0.000
H9 2.128 2.345 0.000
H10 1.079 3.908 0.000
H11 -2.128 -2.345 0.000
H12 -1.079 -3.908 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.23691.44342.68032.46963.61322.17103.32142.74013.46173.64834.6530
C21.23692.68031.44343.61322.46963.32142.17103.64834.65302.74013.4617
C31.44342.68034.12381.36015.00421.09964.71952.14642.13804.89386.0663
C42.68031.44344.12385.00421.36014.71951.09964.89386.06632.14642.1380
C52.46963.61321.36015.00426.06462.13355.36821.09741.09716.10237.0749
C63.61322.46965.00421.36016.06465.36822.13356.10237.07491.09741.0971
H72.17103.32141.09964.71952.13355.36825.47363.11792.46685.03106.4625
H83.32142.17104.71951.09965.36822.13355.47365.03106.46253.11792.4668
H92.74013.64832.14644.89381.09746.10233.11795.03101.88196.33297.0271
H103.46174.65302.13806.06631.09717.07492.46686.46251.88197.02718.1079
H113.64832.74014.89382.14646.10231.09745.03103.11796.33297.02711.8819
H124.65303.46176.06632.13807.07491.09716.46252.46687.02718.10791.8819

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 123.474
C1 C3 H7 116.586 C2 C1 C3 180.000
C2 C4 C6 123.474 C2 C4 H8 116.586
C3 C5 H9 121.347 C3 C5 H10 120.565
C4 C6 H11 121.347 C4 C6 H12 120.565
C5 C3 H7 119.939 C6 C4 H8 119.939
H9 C5 H10 118.088 H11 C6 H12 118.088
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability