Porphyrin-based molecular tweezers as a receptor for bipyridinium guests

Maxwell J. Gunter; Martin R. Johnston

doi:10.1016/S0040-4039(00)91729-5

Porphyrin-based molecular tweezers as a receptor for bipyridinium guests

Maxwell J. Gunter, Martin R. Johnston

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

A porphyrin with two appended benzo-crown ethers in the form of a porphyrin-based molecular tweezer was synthesized and shown to bind the bipyridinium guests paraquat, diquat and Pt(bpy)(NH₃)₂ dications in several solvents. The conformations of the host molecule were shown to be solvent dependent. Lack of binding by a non-crown ether containing analogue demonstrated the necessity of the crown ether chains for the binding of guest molecules.

Original language	English
Pages (from-to)	1771-1774
Number of pages	4
Journal	Tetrahedron Letters
Volume	33
Issue number	13
DOIs	https://doi.org/10.1016/S0040-4039(00)91729-5
Publication status	Published - 24 Mar 1992
Externally published	Yes

Keywords

bipyridinium
crown ether
host-guests
molecular receptor
porphyrin

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AU - Johnston, Martin R.

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N2 - A porphyrin with two appended benzo-crown ethers in the form of a porphyrin-based molecular tweezer was synthesized and shown to bind the bipyridinium guests paraquat, diquat and Pt(bpy)(NH3)2 dications in several solvents. The conformations of the host molecule were shown to be solvent dependent. Lack of binding by a non-crown ether containing analogue demonstrated the necessity of the crown ether chains for the binding of guest molecules.

AB - A porphyrin with two appended benzo-crown ethers in the form of a porphyrin-based molecular tweezer was synthesized and shown to bind the bipyridinium guests paraquat, diquat and Pt(bpy)(NH3)2 dications in several solvents. The conformations of the host molecule were shown to be solvent dependent. Lack of binding by a non-crown ether containing analogue demonstrated the necessity of the crown ether chains for the binding of guest molecules.

KW - bipyridinium

KW - crown ether

KW - host-guests

KW - molecular receptor

KW - porphyrin

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U2 - 10.1016/S0040-4039(00)91729-5

DO - 10.1016/S0040-4039(00)91729-5

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EP - 1774

JO - Tetrahedron Letters

JF - Tetrahedron Letters

SN - 0040-4039

IS - 13

ER -

Porphyrin-based molecular tweezers as a receptor for bipyridinium guests

Abstract

Keywords

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