Thorpe−Ingold Effect on Photoinduced Electron Transfer of Dialkylsilylene-Spaced Divinylarene Copolymers Having Alternating Donor and Acceptor Chromophores | Zendy

MeiYu Yeh | Zendy; HsinChieh Lin | Zendy; TsongShin Lim | Zendy; ShernLong Lee | Zendy; Chunhsien Chen | Zendy; Wunshain Fann | Zendy; TienYau Luh | Zendy

Open Access

Thorpe−Ingold Effect on Photoinduced Electron Transfer of Dialkylsilylene-Spaced Divinylarene Copolymers Having Alternating Donor and Acceptor Chromophores

Author(s) -

MeiYu Yeh,

HsinChieh Lin,

TsongShin Lim,

ShernLong Lee,

Chunhsien Chen,

Wunshain Fann,

TienYau Luh

Publication year - 2007

Publication title -

macromolecules

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.994

H-Index - 313

eISSN - 1520-5835

pISSN - 0024-9297

DOI - 10.1021/ma702197k

Subject(s) - chromophore , substituent , copolymer , isopropyl , photoinduced electron transfer , photochemistry , chemistry , acceptor , electron donor , electron acceptor , electron transfer , stereochemistry , organic chemistry , catalysis , polymer , physics , condensed matter physics

Dialkylsilylene-spaced divinylarene copolymers having alternating donor and acceptor chromophores are designed and synthesized. The rates of photoinduced electron transfer (PET) depend on the nature of the substituent on silicon. A replacement of the methyl substituent by the bulky isopropyl group has been shown to enhance the rate of PET. The results are rationalized in terms of the Thorpe-Ingold effect, which would bring the neighboring donor and acceptor chromophores in closer proximity. The STM images of the isopropyl-substituted copolymers are more folded than those of the methyl-substituted analogues, and these results are consistent with the outcome of photophysical studies of these copolymers.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research