Synthesis and Characterization of Molecules and π-Conjugated Materials Containing Low-Coordinate Phosphorus

 
 
 
 

Synthesis and Characterization of Molecules and π-Conjugated Materials Containing Low-Coordinate Phosphorus

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dc.contributor.advisor Protasiewicz, John D. en_US
dc.contributor.author Chen, Xufang en_US
dc.date.accessioned 2008-07-10T14:28:07Z
dc.date.available 2008-07-10T14:28:07Z
dc.date.created 2005 en_US
dc.date.issued 2008-07-10T14:28:07Z
dc.identifier.uri http://rave.ohiolink.edu/etdc/view?acc_num=case1102137178 en_US
dc.identifier.uri http://hdl.handle.net/2374.OX/16438
dc.description There are many similarities between phosphaalkenes and phosphaalkynes, low-coordinate phosphorus compounds containing RP=CR2 and RC≡P functional groups, and olefins (R2C=CR2), their unsaturated carbon analogues. Phosphanylidene-σ^4-phosphoranes have proven to be phospha-Wittig reagents that react with aldehydes to generate phosphaalkenes. Using the phospha-Wittig reaction, phosphaalkene oligomers and polymers were synthesized and characterized and shown to exhibit bathochromic shifts in comparison with related olefins. meta-Terphenyl phosphaalkynes have also been prepared. These materials were prepared for possible synthesis of transition metal complexes of phosphaalkynes. In addition, phosphanylidene-σ^4-phosphoranes react with ortho-quinones to form 1,3,2-dioxaphospholanes or β-phosphaenones depending on the nature of the quinone. Furthermore, meta-terphenyls containing methoxy groups were investigated which have different properties from those having alkyl substitutents. 2,6-Dimesitylphenyl difluorophosphine was synthesized and characterized and found to be relatively inert to reduction by active magnesium. en_US
dc.format application/pdf en_US
dc.format 224p. en_US
dc.rights unrestricted en_US
dc.rights Copyright and permissions information available at the source archive en_US
dc.subject phosphaalkenes en_US
dc.subject phosphaalkynes en_US
dc.subject Phosphanylidene-σ^4-phosphoranes en_US
dc.subject phospha-Wittig reaction en_US
dc.subject phosphaalkene oligomers and polymers en_US
dc.subject meta-Terphenyl phosphaalkynes en_US
dc.subject 1,3,2-dioxaphospholanes en_US
dc.subject β-phosphaenones en_US
dc.subject meta-terphenyls containing methox en_US
dc.title Synthesis and Characterization of Molecules and π-Conjugated Materials Containing Low-Coordinate Phosphorus en_US
dc.type Electronic Thesis or Dissertation en_US
dc.degree.name PhD en_US
dc.degree.level doctoral en_US
dc.degree.discipline Chemistry en_US
dc.degree.grantor Case Western Reserve University en_US
dc.contributor.publisher Case Western Reserve University / OhioLINK en_US

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