Kaihua Shen

Dyes based on 5,10-dihydrophenophosphazine. Part 1: disazo direct dyes

The synthesis of 2,8-diamino-5,10-dihydro-10-hydroxy-5-methylphenophosphazine 10-oxide as a possible replacement for the benzidine moiety in some disazo dyes and the use of this new diamine in the preparation of direct dyes were undertaken. The dyes obtained were applied to cotton to give purple to brilliant blue shades, and their structures were confirmed using negative ion electrospray mass spectrometry.

Novel Quaternary Ammonium Salts with Methylindole: Synthesis and Photoelectric Properties Investigation

Five novel cationic quaternary ammonium salts were synthesized with 2,3,3-trimethylindole as raw material and then used as organic electrolytes for dye-sensitized solar cell (DSSC). Their structures were confirmed by 1 H NMR and MS and the photoelectric conversion efficiencies has been tested. The relation