The organization of single-molecule magnets (SMMs) on surfaces is a mainstream research path in molecular magnetism. Of special importance is the control of grafting geometry in chemisorbed monolayers on metal surfaces. We herein present the synthesis, solid-state structure, and magnetic characterization of propeller-like tetrairon(III) SMMs containing the shortest-reported tethering groups for gold surfaces. Functionalization of molecular structure is attained using 2-R-2-(hydroxymethyl)propane-1,3-diol tripodal proligands (H3LR). The R substituents comprise a monomethylene spacer and three different terminations known to act as stable precursors of S-Au bonds (R = CH2SCN, CH2SAc and CH2SSnBu). These chemical groups are shown to be chemically compatible with the tetrairon(III) core and to afford fully-functional SMMs in crystalline form and in fair to excellent yields

S-Functionalized Tripods with Monomethylene Spacers: Routes to Tetrairon(III) Single-Molecule Magnets with Ultrashort Tethering Groups / Andrea Cornia; Chiara Danieli; Fabio Meglioli; Erik Tancini; Alessio Nicolini; Maria Jesus Rodriguez-Douton; Anne-Laure Barra; Marco Affronte; Roberta Sessoli. - In: MAGNETOCHEMISTRY. - ISSN 2312-7481. - ELETTRONICO. - 6:(2020), pp. 1-16. [10.3390/magnetochemistry6040055]

S-Functionalized Tripods with Monomethylene Spacers: Routes to Tetrairon(III) Single-Molecule Magnets with Ultrashort Tethering Groups

Roberta Sessoli
2020

Abstract

The organization of single-molecule magnets (SMMs) on surfaces is a mainstream research path in molecular magnetism. Of special importance is the control of grafting geometry in chemisorbed monolayers on metal surfaces. We herein present the synthesis, solid-state structure, and magnetic characterization of propeller-like tetrairon(III) SMMs containing the shortest-reported tethering groups for gold surfaces. Functionalization of molecular structure is attained using 2-R-2-(hydroxymethyl)propane-1,3-diol tripodal proligands (H3LR). The R substituents comprise a monomethylene spacer and three different terminations known to act as stable precursors of S-Au bonds (R = CH2SCN, CH2SAc and CH2SSnBu). These chemical groups are shown to be chemically compatible with the tetrairon(III) core and to afford fully-functional SMMs in crystalline form and in fair to excellent yields
6
1
16
Andrea Cornia; Chiara Danieli; Fabio Meglioli; Erik Tancini; Alessio Nicolini; Maria Jesus Rodriguez-Douton; Anne-Laure Barra; Marco Affronte; Roberta Sessoli
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2158/1280265
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