Heterocyclic Supramolecules I by Samir Mameri, Satoshi Shinoda, Hiroshi Tsukube (auth.),

By Samir Mameri, Satoshi Shinoda, Hiroshi Tsukube (auth.), Kiyoshi Matsumoto (eds.)

see desk of contents

Show description

Read or Download Heterocyclic Supramolecules I PDF

Similar nonfiction_4 books

Natural Hazards and Human-Exacerbated Disasters in Latin America

The most target of the publication is to supply a imaginative and prescient of the dynamics of the most mess ups in South the US, describing their mechanisms and outcomes on South American societies. The chapters are written by way of chosen experts of every state. Human-induced failures also are incorporated, equivalent to desertification in Patagonia and soil erosion in Brazil.

Cliffs notes on Dickens' Oliver Twist

The unique CliffsNotes examine publications supply professional remark on significant issues, plots, characters, literary units, and old heritage. the newest new release of titles within the sequence additionally characteristic glossaries and visible components that supplement the vintage, frequent structure. In CliffsNotes on Oliver Twist, you’ll meet an expensive, thankful, mild orphan who, “instead of owning too little feeling, possessed relatively an excessive amount of.

Extra info for Heterocyclic Supramolecules I

Example text

44 2 Benzene Ring(s) Containing Crownophanes . . . . . . . . . 46 3 Naphthalene Ring(s) Containing Crownophanes . . . . . . . . 3 Other Condensed Polyaromatic Ring(s) Containing Crownophanes Fluorenone and Stilbene Ring(s) Containing Crownophanes . . Anthracene Ring(s) Containing Crownophanes . . . . . . Pyrene Rings Containing Crownophanes . . . . . . . . . . . . . . . . 3 Heteroaromatic Ring Containing Crownophanes . Pyridine Ring(s) Containing Crownophanes .

Although a large number of target anions of natural origin are water-soluble, some heterocycle–lanthanide complexes allowed their sensing at a practical level. Their synthetic strategies and sensing characteristics are discussed. 28 S. Mameri et al. 1 Heterocycle–Lanthanide Complexes for Anion Recognition and Sensing The trivalent lanthanide cations possess characteristic 4f open-shell configurations and exhibit interesting chemical and physical properties. 89 ˚ complexes, most of them prefer high coordination numbers (8–10).

This formed stable complexes with Eu3+ and Tb3+ cations, in which two water molecules directly coordinated with the lanthanide centers [126]. Addition of NO3 – anion greatly increased the luminescence intensity of both Eu3+ and Tb3+ complexes, while F– , Cl– , or acetate anion induced less pronounced changes. The displacement of the water molecules by one NO3 – anion led to a ternary complex exhibiting the enhanced luminescence intensity (A in Fig. 18). Addition of one more equivalent of NO3 – anion dissociated one bipyridine, and produced another type of ternary complex (B in Fig.

Download PDF sample

Rated 4.78 of 5 – based on 37 votes