Diminished bond multiplicity

One also notices that the population-weighting procedure of Scheme 1.3, with/ = 1 and/2 = 1/2, gives a diminished bond multiplicity ... 

These diatomic IT indices predict the strongest terminal (1-2) or (3-4) n bonds, which exhibit somewhat diminished bond multiplicity to about 92%... 

Let us make two more observations about the convergence of the coupled-cluster hierarchy. First, it converges faster for HF than for N2, reflecting the more complicated electronic structure of the multiple bond in N2. Second, the cancellation of errors in the calculated AEs becomes less pronounced as we move up in the coupled-cluster hierarchy. The cancellation diminishes since the coupled-cluster expansions of the atoms... 

Look at the third column of the chart and appreciate the diminishing hydrogen content of the compounds as the number of carhon-carhon bonds increases. Organic compounds with multiple carbon-carbon bonds readily react with hydrogen gas. 

Relatively few compounds of Tc " have radiopharmaceutical use. and its chemistry in this oxidation state has therefore been comparatively neglected. For both the heavier elements the preference for oxo compounds is diminishing while the tendency to form M-M multiple bonds has not yet acquired the importance to be found in more reduced states. The most important compounds are the salts of [M = Tc,... 

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