Rare Crystal Structure of Open Spirolactam Ring along with the Closed-Ring Form of a Rhodamine Derivative: Sensing of Cu 2+ Ions from Spinach.

Abstract

Crystal structures of a rhodamine derivative in its closed and open spirolactam ring forms were developed, which allows selective and sensitive detection of Cu 2+ ions at a micromolar range in neutral medium. The chemosensing properties of the probe through a pentacoordinate Cu 2+ ions were proven by spectroscopic and theoretical analysis. The spirolactam ring opening as the Cu 2+ selective sensor was applied to spinach ( Spinacia oleracea ) to estimate the accumulation of copper as copper(II) in the plant.

Plant phenotyping relevance

Cu2+選択的な化学センサーを開発し、植物体内の銅蓄積という植物状態の推定に適用しており、測定法が中心的です。

Code and data availability

This chemistry paper (rhodamine-based Cu2+ sensor applied to spinach) contains no public phenotype/trait datasets, plant images, author analysis code, or trained models. The Supporting Information (CIF crystallographic files and a PDF of supplementary spectra/DFT details) is hosted on the ACS website, but no allowed or

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