Publication

Organometallic complexes derived from alkyne-functionalized imidazolium salts

Abstract

Two 1,3-dialkyne-functionalized imidazolium chlorides, 1,3-dipropynylimidazolium chloride and 1,3-dipentynylimidazolium chloride, have been prepared from the direct reaction between the appropriate chloroalkyne and (trimethylsilyl)imidazole. Replacement of the chloride counterion with BF4- or BPh4- gave four further imidazolium salts, three of which melt below 100 degreesC and one of which is a liquid at room temperature. Reactions of the BF4- and BPh4- salts with Co-2(CO)(8) afforded complexes in which both of the alkyne functionalities coordinated to a CO2(CO)(6) unit. One of these organometallic derivatives, viz. 1,3-dipentynylimidazolium bis(hexacarbonyldicobalt) tetrafluoroborate, can be classified as an ionic liquid on the basis of its melting point. The solid-state structures of three of these new salts have been elucidated by single-crystal X-ray diffraction, revealing extensive networks of C(...)H(...)pi and pi(...)pi interactions. Attempts to prepare carbene derivatives from the functionalized imidazolium salts have also been made.

About this result
This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Graph Chatbot

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.