Near-infrared thermochromic diazapentalene dyes.

Qian, Gang; Wang, Zhi Yuan · Adv Mater · 2012

basic_science · Level V

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Abstract

A series of 2,5-diazapentalene containing dyes with tunable energy gaps are visible and near-infrared halochromic towards various acids and their protonated counterparts represent a new class of thermochromic materials with the near-infrared absorption being switched on at room temperature and off above 50 °C.

Medical subject headings