Posted: May 22nd, 2023

A traditional method of synthesizing polymetalloles and their copolymers

A traditional method of synthesizing polymetalloles and their copolymers entails the application of a method that was known as Wurtz–polycondensation. The process of making polysiloles and polygermoles together with their respective copolymers was found to be related to each other, and both used the Wurts method of polycondensation. This method of synthesis was found to be not reliable for large-scale productions since its resultant materials were very small; specifically only thirty percent.

To produce quantity and quality substances, a method that used catalytic dehydrocoupling of both metals was used. It also involved the use of Bis (cyclopentadienyl) complex forms. In this method it was found out that it is just the primary hydrosilanes that were reacted to form polysilanes in high quantities. The rest gave out dimers which were not needed in the synthesis. It was found out that the reactivity dropped drastically as substitution at the silicon atom was increased. This was because reactions that used metallocenes as their catalysts had vulnerability to steric effects. And as it is known satiric effects can always hinder reactions or even alter the reactions in one way or another (Hiemenz 40-41).

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Another method of using dehydrooupling polycondensation in the presence of a catalyst was also applied. This had in it dihydro (tetraphenyl) silole and dihydro (tetrapheny) germole that had about five percent Wilkinson’s catalyst whose formula is Rh (PPh3)3Cl or Pd (PPh3)4 (Cornils 616). This method employed a technique that used polycondensation because the end result was to be a polymer and the method was to give high percentage quality yield and high volume products.

It was also a good thing to consider the cost of production as some of these can be very expensive. Silole was prepared by mixing 1,1-dichloro- 2,3,4,5-tetraphenyl silole with lithium and stirred at room temperature that is normally twenty-five to twenty-seven degrees centigrade for eight hours. One molar silane was then gently added to tetraphenyl silole dianion and mixed thoroughly by stirring for two hours.

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