Correlation diagram state

B. CSFs Interaet and Couple to Produee States and State Correlation Diagrams... 

State correlation diagram for homonuclear case in which heterolytic bond cleavage is energetically favored. 

State correlation diagram for heteronuclear case in which both heterolytic bond cleavage products are energetically favored relative to homolytic cleavage. 

Figure 15.13 State correlation diagram for cyclobutane formation...

Figure 15.23 State correlation diagram for the dis- and conrotatory ring-closure of butadiene...

The state correlation diagrams give an indication of the minimum theoretical level necessary for describing a reaction. For allowed reactions, the reactant configuration... 

Figure 1.5 Schematic state correlation diagram for radical addition to a carbon-carbon double bond showing configuration energies as a function of the reaction...

State Correlation Diagram (SCO) approach 27-8 statistical copolymerization see copolymerization statistical copolymers sea also copolymers definition 333... 

Construct a state correlation diagram for the conrotatory butadiene-cyclobutene system. 

From the state correlation diagram based on Fig. 9 it can be seen that the triplet state of methylene and the ground state of ethylene correlate with... 

Fig. 9. Schematic state correlation diagram for the addition of methylene to ethylene. Bracketed letters indicate the total symmetry (S) or antisymmetry (A) of each state...

Fig. 1. Left part Qualitative MO diagram in the C2, geometry of the Li + CI2 system. Right part Associated state correlations diagram. Diabatic correlations are shown in broken lines.

Fig. 7. State correlation diagram for the DHP-cis-stilbene conrotatory path. R is the reaction coordinate, as in Fig. 6.

The extensions of the state correlation diagrams given above to the heteronuclear situations are described below. 

The photochemical disrotatory closure of butadiene to cyclobutene has been described with a state-correlation diagram, like that shown in Figure 21.4. It is based on the familiar orbital-correlation diagram of Woodward and Hoffmann," from which the intended correlations indicated by the dashed lines can readily be deduced. The solid lines indicate that there is an avoided crossing, which is put in as a result of the quantum mechanical noncrossing rule. It says that two states of the same total symmetry cannot cross. Instead, as they approach each other in energy, they will mix and separate, as the solid lines indicate. 

Figure 21.4. A state-correlation diagram depicting the avoided-crossing representation of butadiene photochemistry.

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