%0 Journal Article
%A Fornalczyk, Gregor
%A Valldor, Martin
%A Mathur, Sanjay
%D 2014
%T Monomeric Iron Heteroarylalkenolates: Structural Design
Concepts and Investigations on Their Application in Chemical Vapor
Deposition
%U https://acs.figshare.com/articles/journal_contribution/Monomeric_Iron_Heteroarylalkenolates_Structural_Design_Concepts_and_Investigations_on_Their_Application_in_Chemical_Vapor_Deposition/2310082
%R 10.1021/cg401930n.s002
%2 https://ndownloader.figshare.com/files/3947710
%K metal chelator
%K FeIII precursor
%K iron oxide layers
%K Monomeric Iron Heteroarylalkenolates
%K 10 K
%K iron atoms
%K nonmagnetic ground state
%K Structural Design Concepts
%K DMTTFP
%K Al 2O substrate
%K Chemical Vapor DepositionAryl
%K chemical vapor deposition
%K Magnetic investigations
%K FeIII centers
%K monomeric precursors
%K decomposition behavior
%X Aryl
substituted β-alkenol 1-(dimethyl-1,3-thiazol-2-yl)-3,3,3-trifluoropropenol
(DMTTFP) was employed as an efficient metal chelator to obtain volatile
monomeric precursors containing FeII and FeIII centers. [Fe(DMTTFP)2] (1) and [Fe(DMTTFP)2(OBut)] (2)
were synthesized by reacting suitable starting materials with DMTTFP.
The molecular structures were elucidated by single-crystal X-ray diffraction
analyses, which revealed a distorted tetrahedral and a trigonal-bipyramidal
arrangement of ligands around iron atoms in 1 and 2, respectively. Magnetic investigations confirmed [Fe(DMTTFP)2] to exhibit a thermally populated spin-state transition that
becomes apparent below 10 K. The high-spin state was gradually transferred
to a low-spin state on cooling, suggesting a nonmagnetic ground state.
[Fe(DMTTFP)2(OBut)] exhibited enhanced stability, sufficient volatility, and decomposition
behavior serving as an efficient FeIII precursor for the
growth of iron oxide layers on an Al2O3 substrate
via chemical vapor deposition.
%I ACS Publications