• Home
  • Search Results
  • Coplanarity in the backbones of ladder-type oligo(p-phenylene) homologues and derivatives.

Coplanarity in the backbones of ladder-type oligo(p-phenylene) homologues and derivatives.

Organic letters (2006-10-20)
Ken-Tsung Wong, Liang-Chen Chi, Shih-Chiang Huang, Yuan-Li Liao, Yi-Hung Liu, Yu Wang
ABSTRACT

p-Tolyl-substituted ladder-type oligo(p-phenylene)s containing three, four, and five phenylene rings were readily synthesized. The uniform aryl substitution of these systems allowed us to determine the coplanarity of the pi-conjugated backbones crystallographically. The intramolecular annulations eliminate almost all of the conformational disorder and enhance the degree of pi-conjugation of the backbones, resulting in significant red shifts in the absorption and emission maxima and lower oxidation potentials in the higher homologues. [structure: see text]

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 98%

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon

MilliporeSigma

Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.