Issue 21, 2021, Issue in Progress
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RSC Advances

Unexpected ortho C–H bond activation in coordinated 7,8-benzoquinoline: synthesis and characterisation of heteroleptic Ir(iii)-7,8-benzoquinoline complexes†

Kahnu Charan Pradhan, ORCID logo a   Hemanta K. Kisana  and  Satyanarayan Pal ORCID logo *a  

* Corresponding authors

a P. G. Dept. of Chemistry, Utkal University, Bhubaneswar, India
E-mail: snpal@utkaluniversity.ac.in

Abstract

Two iridium(III) complexes were isolated via the reaction of pyridine-2-aldoxime (Hpyrald) with 7,8-benzoquinoline (benzq)-derived iridium starting material, namely [(benzq)2Ir(μ-Cl)2Ir(benzq)2] (1). Among the two complexes, [IrIII(benzq)2(pyrald)] (2) and [IrIII(benzq-κN,κC10)(benzq-κC2)(Hpyrald)(Cl)] (3), the later displayed unusual ortho C–H bond activation in one of the coordinated 7,8-benzoquinoline rings. The complex (2) presented a usual structure as expected.

Graphical abstract: Unexpected ortho C–H bond activation in coordinated 7,8-benzoquinoline: synthesis and characterisation of heteroleptic Ir(iii)-7,8-benzoquinoline complexes

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Article information

DOI
https://doi.org/10.1039/D1RA00860A
Article type
Paper
Submitted
01 Feb 2021
Accepted
01 Mar 2021
First published
30 Mar 2021
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2021,11, 12578-12582

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Unexpected ortho C–H bond activation in coordinated 7,8-benzoquinoline: synthesis and characterisation of heteroleptic Ir(III)-7,8-benzoquinoline complexes

K. C. Pradhan, H. K. Kisan and S. Pal, RSC Adv., 2021, 11, 12578 DOI: 10.1039/D1RA00860A

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