Pentaphosphaferrocene as a Linking Unit for the Formation of One- and Two-Dimensional Polymers

Abstract

Different copper halide, different copper product: The cyclo‐P5‐ligand complex [Cp*Fe(η5‐P5)] (1; Cp*=C5Me5) reacts with CuBr and CuI to give two‐dimensional networks in which 1 is the linking unit. However, a novel one‐dimensional‐chain coordination polymer (see picture) is formed with CuCl.

Crystal structure of a giant supramolecule encapsulating o-carborane

“…At the phase boundary a color change to yellow-brown is observed. Within two weeks dark brown blocks of (o-C 2 B 10 H 12 ) 0.5 @[{Cp*Fe(η 5 -P 5 )} 12 {CuBr} 18.8 ] (3) and [Cp*Fe(η 5 -P 5 )]@[{Cp*Fe(η 5 -P 5 )} 12 {CuBr} 25 (MeCN) 10 ] (4, compound 8 in [11]) can be obtained accompanied by a polymeric product [CuBr{Cp*Fe(η 5 -P 5 )}] (compound 5 in [16]). Due to the identical crystal habitus the products cannot be distinguished optically.…”

Cyclo‐P4‐Bausteine – Verwirklichung nichtklassischer Fulleren‐Analogie und weiterer Topologien

“…[9] Durch vorsichtiges Überschichten einer Lçsung von CuI in CH 3 .B ei der Bildung von 4,a ls jedoch ein anderes Solvatomorph (4a), entstehen auch braune Nadeln des früher beschriebenen 2D-Koordinationspolymers [{Cp*Fe(h 5 -P 5 )}(CuI)] n . [10] Offensichtlich verhindert die Anwesenheit von [Cp*Fe(h 5 -P 5 )] im Reaktionsgemisch die zunächst einsetzende Bildung von 3 und begünstigt die Bildung von 4.…”

Reactions of sodium pentaphosphacyclopentadienide with half-sandwich iron complexes

“…This has been clearly demonstrated with reactions of pentaphosphaferrocenes with a number of transition metal derivatives. [5][6][7][8][9] However, the chemistry of pentaphosphaferrocenes has been mainly concerned with only two representatives of this class, namely, pentamethyl and ethyl(tetra methyl)pentaphosphaferrocenes, owing to their accessi bility. So far pentaphosphaferrocenes are prepared only by heating a mixture of iron cyclopentadienyl(carbonyl) complexes with white phosphorus in boiling xylene 10 or decalin.…”