Organometallic polymorphism. Synthesis and structural characterization of two forms of [Ru( η6-C 6H 6)( η6-C 6H 4(CH 3)COOCH 3)][BF 4] 2 and the phase transition in [Ru( η5-C 5H 5)( η6-C 6H 5OH)][PF 6]

• Published in: Solid state sciences Vol. 3; no. 7; pp. 783 - 788
• Main Authors: Braga, Dario, Abati, Alexander, Scaccianoce, Laura, Johnson, Brian F.G, Grepioni, Fabrizia
• Format: Journal Article
• Language: English
• Published: Paris Elsevier Masson SAS 2001; Elsevier
• Subjects: Condensed matter: structure, mechanical and thermal properties; Crystalline state (including molecular motions in solids); Crystallographic aspects of phase transformations; pressure effects; Exact sciences and technology; Inorganic compounds; Metal complexes; Organometallic materials; Organometallic polymorphism; Phase transitions; Physics; Ruthenium sandwich complexes; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Organometallic materials; Organometallic polymorphism; Phase transitions; Ruthenium sandwich complexes; Cationic complex; Inorganic compounds; Transition element complexes; Unsaturated cyclic compound; Molecular structure; Esters; Hexafluophosphates; Ruthenium complexes; XRD; Precursor; Tetrafluoborates; Ambient temperature; Chloro complex; Low temperature; Crystal structure; Phase transformations; Organic ligand; Experimental study; Sandwich compound; Phenols; Benzenic compound; Temperature range 65-273 K; Hapto complex; Intramolecular hydrogen bond; Conformation; Polymorphism
• ISSN: 1293-2558; 1873-3085
• DOI: 10.1016/S1293-2558(01)01197-9

The synthesis and structural characterization of the complex [Ru(
η
6-C
6H
6)(
η
6-C
6H
4(CH
3)COOCH
3)] [BF
4]
2 (
2) and of its precursor [Ru(
η
6-C
6H
4(CH
3)COOCH
3)Cl
2]
2 (
1) are reported. Compound (
2) has been characterized in two polymorphic modifications (
2a and
2b) and the molecular organization in the solid state has been investigated. The complex [Ru(
η
5-C
5H
5)(
η
6-C
6H
5OH)][PF
6] (
3) has also been investigated; it has been shown to possess a disorder similar to that observed in the high temperature phase of related systems such as [Ru(
η
5-C
5H
5)(
η
6-C
6H
6)][PF
6].
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