Characterization of a robust CoII fluorescent complex deposited intact on HOPG

María José Heras-Ojea; Daniel Reta Mañeru; Lidia Rosado; Juan Rubio Zuazo; German R. Castro; Subrata Tewary; Gopalan Rajaraman; Guillem Aromí; Erika Jiménez; E. Carolina Sañudo

doi:10.1002/chem.201402814

Characterization of a robust Co^II fluorescent complex deposited intact on HOPG

María José Heras-Ojea, Daniel Reta Mañeru, Lidia Rosado, Juan Rubio Zuazo, German R. Castro, Subrata Tewary, Gopalan Rajaraman, Guillem Aromí, Erika Jiménez, E. Carolina Sañudo^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The new diimine fluorescent ligand ACRI-1 based on a central acridine yellow core is reported along with its coordination complex [Co ₂(ACRI-1)₂] (1), a fluorescent weak ferromagnet. Due to the strong fluorescence of the acridine yellow fluorophore, it is not completely quenched when the ligand is coordinated to Co^II. The magnetic properties of bulk complex 1 and its stability in solution have been studied. Complex 1 has been deposited on highly ordered pyrolitic graphite (HOGP) from solution. The thin films prepared have been characterized by AFM, time-of-flight secondary ion mass spectrometry (TOF-SIMS), grazing incidence X-ray diffraction (GIXRD), X-ray absorption spectroscopy (XAS), X-ray magnetic circular dichroism (XMCD) and theoretical calculations. The data show that the complex is robust and remains intact on the surface of graphite.

Original language	English
Pages (from-to)	10439-10445
Number of pages	7
Journal	Chemistry - A European Journal
Volume	20
Issue number	33
DOIs	https://doi.org/10.1002/chem.201402814
Publication status	Published - 11 Aug 2014

Keywords

cobalt
fluorescent compounds
ligands
magnetic properties
surface chemistry
thin films

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10.1002/chem.201402814

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title = "Characterization of a robust CoII fluorescent complex deposited intact on HOPG",

abstract = "The new diimine fluorescent ligand ACRI-1 based on a central acridine yellow core is reported along with its coordination complex [Co 2(ACRI-1)2] (1), a fluorescent weak ferromagnet. Due to the strong fluorescence of the acridine yellow fluorophore, it is not completely quenched when the ligand is coordinated to CoII. The magnetic properties of bulk complex 1 and its stability in solution have been studied. Complex 1 has been deposited on highly ordered pyrolitic graphite (HOGP) from solution. The thin films prepared have been characterized by AFM, time-of-flight secondary ion mass spectrometry (TOF-SIMS), grazing incidence X-ray diffraction (GIXRD), X-ray absorption spectroscopy (XAS), X-ray magnetic circular dichroism (XMCD) and theoretical calculations. The data show that the complex is robust and remains intact on the surface of graphite.",

keywords = "cobalt, fluorescent compounds, ligands, magnetic properties, surface chemistry, thin films",

author = "Heras-Ojea, {Mar{\'i}a Jos{\'e}} and Ma{\~n}eru, {Daniel Reta} and Lidia Rosado and Zuazo, {Juan Rubio} and Castro, {German R.} and Subrata Tewary and Gopalan Rajaraman and Guillem Arom{\'i} and Erika Jim{\'e}nez and Sa{\~n}udo, {E. Carolina}",

year = "2014",

month = aug,

day = "11",

doi = "10.1002/chem.201402814",

language = "English",

volume = "20",

pages = "10439--10445",

journal = "Chemistry - A European Journal",

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publisher = "John Wiley & Sons Ltd",

number = "33",

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T1 - Characterization of a robust CoII fluorescent complex deposited intact on HOPG

AU - Heras-Ojea, María José

AU - Mañeru, Daniel Reta

AU - Rosado, Lidia

AU - Zuazo, Juan Rubio

AU - Castro, German R.

AU - Tewary, Subrata

AU - Rajaraman, Gopalan

AU - Aromí, Guillem

AU - Jiménez, Erika

AU - Sañudo, E. Carolina

PY - 2014/8/11

Y1 - 2014/8/11

N2 - The new diimine fluorescent ligand ACRI-1 based on a central acridine yellow core is reported along with its coordination complex [Co 2(ACRI-1)2] (1), a fluorescent weak ferromagnet. Due to the strong fluorescence of the acridine yellow fluorophore, it is not completely quenched when the ligand is coordinated to CoII. The magnetic properties of bulk complex 1 and its stability in solution have been studied. Complex 1 has been deposited on highly ordered pyrolitic graphite (HOGP) from solution. The thin films prepared have been characterized by AFM, time-of-flight secondary ion mass spectrometry (TOF-SIMS), grazing incidence X-ray diffraction (GIXRD), X-ray absorption spectroscopy (XAS), X-ray magnetic circular dichroism (XMCD) and theoretical calculations. The data show that the complex is robust and remains intact on the surface of graphite.

AB - The new diimine fluorescent ligand ACRI-1 based on a central acridine yellow core is reported along with its coordination complex [Co 2(ACRI-1)2] (1), a fluorescent weak ferromagnet. Due to the strong fluorescence of the acridine yellow fluorophore, it is not completely quenched when the ligand is coordinated to CoII. The magnetic properties of bulk complex 1 and its stability in solution have been studied. Complex 1 has been deposited on highly ordered pyrolitic graphite (HOGP) from solution. The thin films prepared have been characterized by AFM, time-of-flight secondary ion mass spectrometry (TOF-SIMS), grazing incidence X-ray diffraction (GIXRD), X-ray absorption spectroscopy (XAS), X-ray magnetic circular dichroism (XMCD) and theoretical calculations. The data show that the complex is robust and remains intact on the surface of graphite.

KW - cobalt

KW - fluorescent compounds

KW - ligands

KW - magnetic properties

KW - surface chemistry

KW - thin films

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U2 - 10.1002/chem.201402814

DO - 10.1002/chem.201402814

M3 - Article

AN - SCOPUS:84905462853

SN - 0947-6539

VL - 20

SP - 10439

EP - 10445

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

IS - 33

ER -

Characterization of a robust Co^II fluorescent complex deposited intact on HOPG

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