Universität zu Köln

Fornalczyk, Gregor, Valldor, Martin and Mathur, Sanjay (2014). Monomeric Iron Heteroarylalkenolates: Structural Design Concepts and Investigations on Their Application in Chemical Vapor Deposition. Cryst. Growth Des., 14 (4). S. 1811 - 1819. WASHINGTON: AMER CHEMICAL SOC. ISSN 1528-7505

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Abstract

Aryl substituted beta-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 Fe-II and Fe-III 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 Fe-III precursor for the growth of iron oxide layers on an Al2O3 substrate via chemical vapor deposition.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Fornalczyk, Gregor UNSPECIFIED UNSPECIFIED UNSPECIFIED Valldor, Martin UNSPECIFIED UNSPECIFIED UNSPECIFIED Mathur, Sanjay UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-442114
DOI:	10.1021/cg401930n
Journal or Publication Title:	Cryst. Growth Des.
Volume:	14
Number:	4
Page Range:	S. 1811 - 1819
Date:	2014
Publisher:	AMER CHEMICAL SOC
Place of Publication:	WASHINGTON
ISSN:	1528-7505
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Inorganic Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SINGLE-SOURCE CVD; COORDINATION SPHERE; MOLECULAR-STRUCTURE; FILMS; OXIDE; COMPLEXES; PRECURSOR; CRYSTAL Multiple languages Chemistry, Multidisciplinary; Crystallography; Materials Science, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/44211