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- W2032347504 abstract "In this contribution is reported the sensitive properties of the ZnII Schiff base complex, 1, in dichloromethane with respect a series of primary, secondary, and tertiary aliphatic amines through the study of fluorescence enhancement upon amine coordination to the Lewis acidic ZnII metal center with formation of 1:1 adducts. It is found that complex 1 exhibits selectivity and nanomolar sensitivity for primary and alicyclic amines. A distinct selectivity is also observed along the series of secondary or tertiary amines, paralleling the increasing steric hindrance at the nitrogen atom. The binding interaction can be related to the Lewis basicity of the coordinating amine; thus, complex 1 represents a suitable reference Lewis acid, and estimated binding constants within the investigated amine series can be related to their relative Lewis basicity. A relative order of the Lewis basicity can be established for acyclic amines, primary > secondary > tertiary, while an inverted order, tertiary > secondary ≈ primary (acyclic), is found in the case of alicyclic amines. The present approach represents a simple, suitable method to ranking the relative Lewis basicity of aliphatic amines in low-polarity, nonprotogenic solvents." @default.
- W2032347504 created "2016-06-24" @default.
- W2032347504 creator A5040480853 @default.
- W2032347504 creator A5047608645 @default.
- W2032347504 date "2011-11-29" @default.
- W2032347504 modified "2023-09-27" @default.
- W2032347504 title "Sensitive Fluorescent Detection and Lewis Basicity of Aliphatic Amines" @default.
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- W2032347504 doi "https://doi.org/10.1021/jp2066265" @default.
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