1991•Bulletin of the Chemical Society of JapanRequires access

Synthesis and Absorption Spectral Properties of New Merocyanine Dyes Derived from 1,1 Diaryl-2-propyn-1-ols

Shin’ichi Nakatsuji, T. YAHIRO, Kenichiro Nakashima, Shuzo Akiyama, Hiroyuki Nakazumi

Abstract

Abstract A series of push-pull butadiene dyes (new merocyanine dyes) containing 3,6-bis(dimethylamino)fluorenylidene, thioxanthenylidene, or 10-(9-xanthenylidene)-9(10H)-anthrylidene chromophore was easily synthesized from the corresponding 1,1-diaryl-2-propyn-1-ol systems. Their absorption spectral properties were examined and the relationship between their light absorption properties and chemical structures is discussed in comparison with the results from PPP-SCF-CI-MO calculations. The influence of the solvent polarity on the 1⁄λmax(=wave number)-values of the dyes was investigated, and the solvatochromic nature compared with the known solvent polarity parameters such as ET30, Z, χR, πazo* on 2-[2-[3,6-bis(dimethylamino)fluorenylidene]ethylidene]-1,3-indandione.

About this research paper

What this paper is about

Why it matters

OpenAlex reports 17 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Merocyanine, Solvatochromism, Chemistry, Solvent polarity, Chromophore, Absorption (acoustics), Solvent, Spectral properties