Ag paper_revised190718_colourless_final.pdf (1.62 MB)
Structural diversity and catalytic properties in a family of Ag(I)-benzotriazole based coordination compounds
journal contribution
posted on 2023-06-09, 14:14 authored by Edouardos Loukopoulos, Alaa Abdul-Sada, Eddy Viseux, Ioannis N Lykakis, George KostakisGeorge KostakisIn this work we study the coordination chemistry of a series of semi-rigid benzotriazole based ligands (L1-L3) along with the low coordination number but versatile AgI ions. This has led to nine new coordination compounds formulated [Ag(L1)(CF3CO2)] (1), [Ag2(L1T)2(CF3SO3)2]·2Me2CO (2), [Ag(L2T)(ClO4)(Me2CO)] (3), [Ag(L2T)(BF4)(Et2O)] (4), [Ag2(L3T)2(ClO4)2]2 (5), [Ag(L3)(NO3)] (6), [Ag2(L3T)2(CF3CO2)2] (7), [Ag2(L3T)(CF3SO3)2] (8) and [Ag2(L3T)2(CF3CF2CO2)2]·2Me2CO (9). These compounds show structural diversity including dimers (5, 7, 9), one dimensional (1D) (3, 4, 6) and two dimensional (2D) (1, 2, 8) coordination polymers. The presence of the two -CH2- units between the three rigid backbones, benzotriazole/-C6H4-/benzotriazole, provides a limited, but significant, flexibility in L1-L3, influencing their variety coordination abilities. Interestingly, certain structures exhibit an isomerism effect (L1T-L3T) in the benzotriazole unit when in solid state; a series of studies are indicative of the 1,1- form is generally dominant in solution even in cases where the crystal structure does not contain this tautomer. The homogeneous catalytic efficacy of all compounds against the well-known multi component A3 coupling reaction and the hydration of alkynes were investigated. Compound 4 was identified as the optimal catalyst for both reactions, promoting the multicomponent coupling as well as the alkyne hydration reaction under low loadings (0.5 and 3 mol%, respectively) and in high yields (up to 99 and 93% in each case).
History
Publication status
- Published
File Version
- Accepted version
Journal
Crystal Growth & DesignISSN
1528-7483Publisher
American Chemical SocietyExternal DOI
Issue
9Volume
18Page range
5638-5651Department affiliated with
- Chemistry Publications
Notes
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Crystal Growth & Design, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see: https://doi.org/10.1021/acs.cgd.8b00960Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2018-07-24First Open Access (FOA) Date
2019-07-23First Compliant Deposit (FCD) Date
2018-07-24Usage metrics
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