Co(ii)-Based single-ion magnets with 1, 1′-ferrocenediyl-bis(diphenylphosphine) metalloligands. Issue 33 (13th August 2020)

• Record Type: Journal Article
• Authors: Hrubý, J.; Dvořák, D.; Squillantini, L.; Mannini, M.; van Slageren, J.; Herchel, R.; Nemec, I.; Neugebauer, P.
• Is Part Of: Dalton transactions. Volume 49:Issue 33(2020)
• Page Start: 11697
• Page End: 11707
• Publication Date: 2020-08-13
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/d0dt01512a
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Two tetracoordinate Co(ii )-based single-ion-magnets were synthesised and characterised by HF-ESR, XPS, UV-VIS with support of ab initio quantum calculations and tested for drop-casting and sublimation depositions of thin films. Abstract : Herein, we report on investigations of magnetic and spectroscopic properties of three heterobimetallic Fe(ii )–Co(ii ) coordination compounds based on the tetracoordinate {CoP2 X2 } core encapsulated by dppf metalloligand, where X = Cl (1 ), Br (2 ), I (3 ), dppf = 1, 1′-ferrocenediyl -bis(diphenylphosphine). The analysis of static magnetic data has revealed the presence of axial magnetic anisotropy in compounds (1 ) and (2 ) and this was further confirmed by high-frequency electron spin resonance (HF-ESR) spectroscopy. Dynamic magnetic data confirmed that (1 ) and (2 ) behave as field-induced Single-Ion Magnets (SIMs). Together with bulk studies, we have also tested the possibility of depositing (2 ) as thick films on Au(111), glass, and polymeric acetate by drop-casting as well as thermal sublimation, a key aspect for the development of future devices embedding these magnetic objects.