Pseudopeptidic ligands: exploring the self-assembly of isophthaloylbisglycine (H2IBG) and divalent metal ions

Abstract

(2012) Pseudopeptidic ligands: exploring the selfassembly of isopthaloylbisglycine (H2IBG) and divalent metal ions. Dalton Transactions, 41. pp. 12501-12513. ISSN 1477-9226 This version is available from Sussex Research Online: http://sro.sussex.ac.uk/46681/ This document is made available in accordance with publisher policies and may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the URL above for details on accessing the published version. Copyright and reuse:Sussex Research Online is a digital repository of the research output of the University.Copyright and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable, the material made available in SRO has been checked for eligibility before being made available.Copies of full text items generally can be reproduced, displayed or performed and given to third parties in any format or medium for personal research or study, educational, or not-for-profit purposes without prior permission or charge, provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. We present a systematic study of the complexation of the new pseudopeptidic ligand isophthaloylbisglycine (H 2 IBG) with divalent metal ions of varying ionic radius. This work represents the initial employment of H 2 IBG in the coordination chemistry of alkaline earth, 3d transition, Zn(II) and Cd(II) metal elements. Infrared, NMR, thermal, magnetic, adsorption and theoretical studies of these compounds are also discussed. Dalton Transactions

A 12-Fold ThSi2 Interpenetrated Network Utilizing a Glycine-Based Pseudopeptidic Ligand

“…Interestingly, the largest variety of compounds was observed when Cu(II) sources were employed. In regard to the alanine-based compounds (entries [21][22][23][24][25][26][27][28][29], the presence of an additional methyl group led to completely different compounds and topologies, as expected. However, the stark difference in entries 21 and 22 (in which Cu(NO 3 ) 2 ·3H 2 O and CuCl 2 ·2H 2 O were employed respectively) once again strongly suggests a metal ion influence towards the resulting product.…”

“…Furthermore, we report the catalytic activity of 1 in the metal-catalyzed multicomponent reaction (MCR) of an aldehyde, an amine, and an alkyne, also known as the A 3 coupling, towards the synthesis of propargylamines. Our group [22][23][24][25][26][27] and others [28,29] have focused specifically on the coordination chemistry of pseudopeptidic ligands which retain a rigid aromatic scaffold, and introduced to it flexible amino acids. This strategy has produced a great variety of coordination polymers with many applications, such as luminescence [30], reversible water loss [27,30,31], magnetism [29], homochirality [18], and catalysis [26].…”

Exploring the Coordination Capabilities of a Family of Flexible Benzotriazole-Based Ligands Using Cobalt(II) Sources

“…The middle ground between these two extremes is to employ semi-rigid ligands with a smaller degree of flexibility, which have also been successfully employed to afford porous networks. [24][25][26][27][28][29][30][31] Benzotriazole and its derivatives have been frequently employed in the construction of CPs and MOFs [32][33][34][35][36][37][38][39][40][41][42][43][44] as well as polynuclear coordination clusters (CCs). [45][46][47][48] Its multi-modal coordination ability, through the 1,2,3-triazole moiety, provides enormous versatility when combined with transition metal ions.…”

“…This played a vital role in their thermal stability and made the prediction of final structures easier. , Nevertheless, despite the challenges they pose, flexible ligands have also been used in recent years to generate frameworks. ,− The conformational freedom of the ligand backbone allows the network to respond reversibly to the presence or absence of guest molecules; however, the downside is the increased possibility of forming more than one product. The middle ground between these two extremes is to employ semirigid ligands with a smaller degree of flexibility, which have also been successfully employed to afford porous networks. − …”