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Tailored β‐Ketoiminato Complexes of Iron: Synthesis, Characterization, and Evaluation towards Solution‐Based Deposition of Iron Oxide Thin Films
Author(s) -
Sadlo Alexander,
Beer Sebastian M. J.,
Rahman Shafiqur,
Grafen Markus,
Rogalla Detlef,
Winter Manuela,
Ostendorf Andreas,
Devi Anjana
Publication year - 2018
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201800094
Subject(s) - chemistry , homoleptic , thermogravimetric analysis , hematite , rutherford backscattering spectrometry , raman spectroscopy , stoichiometry , iron oxide , oxide , inorganic chemistry , thin film , crystallography , nanotechnology , mineralogy , metal , organic chemistry , materials science , ion , physics , optics
The synthesis and characterization of five new and closely related homoleptic iron(II) β‐ketoiminate complexes is reported. Molecular structures of compounds 1 , 2 , and 5 were determined by single‐crystal XRD, which revealed monomeric four‐ and sixfold coordination, depending on the functionalized side chain. The stepwise elimination of the ligand from the complex observed by thermogravimetric analysis and the stability in solution are encouraging features for solution‐based processing of hematite thin films. As a representative example, compound 1 was successfully employed in a straightforward spin‐coating process. The fabricated iron oxide films were characterized in terms of their structure and phase by XRD and Raman spectroscopy, morphology by SEM, and composition by Rutherford backscattering spectrometry accompanied by nuclear reaction analysis, which revealed the formation of crystalline and stoichiometric α‐Fe 2 O 3 films.