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

Chen, Xufang
http://rave.ohiolink.edu/etdc/view?acc_num=case1102137178

Abstract Details

2005, Doctor of Philosophy, Case Western Reserve University, Chemistry.
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-σ4-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-σ4-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.
John Protasiewicz (Advisor)
224 p.
phosphaalkenes; phosphaalkynes; Phosphanylidene-&963; 4-phosphoranes; phospha-Wittig reaction; phosphaalkene oligomers and polymers; meta-Terphenyl phosphaalkynes; 1,3,2-dioxaphospholanes; &946; -phosphaenones

Recommended Citations

Citations

  • Chen, X. (2005). Synthesis and Characterization of Molecules and π-Conjugated Materials Containing Low-Coordinate Phosphorus [Doctoral dissertation, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1102137178

    APA Style (7th edition)

  • Chen, Xufang. Synthesis and Characterization of Molecules and π-Conjugated Materials Containing Low-Coordinate Phosphorus. 2005. Case Western Reserve University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1102137178.

    MLA Style (8th edition)

  • Chen, Xufang. "Synthesis and Characterization of Molecules and π-Conjugated Materials Containing Low-Coordinate Phosphorus." Doctoral dissertation, Case Western Reserve University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=case1102137178

    Chicago Manual of Style (17th edition)

case1102137178
2,382
© 2004, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.