Unexpected fragmentations of triphosphaferrocene - formation of supramolecular assemblies containing the (1,2,4-P(3)C(2)Mes(2))(-) ligand

Heindl, Claudia and Kuntz, Andrea and Peresypkina, Eugenia V. and Virovets, Alexander V. and Zabel, Manfred and Luedeker, David and Brunklaus, Gunther and Scheer, Manfred (2015) Unexpected fragmentations of triphosphaferrocene - formation of supramolecular assemblies containing the (1,2,4-P(3)C(2)Mes(2))(-) ligand. DALTON TRANSACTIONS, 44 (14). pp. 6502-6509. ISSN 1477-9226, 1477-9234

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Abstract

While reacting the sterically demanding triphosphaferrocene [(CpFe)-Fe-star(eta(5)-P(3)C(2)Mes(2))] (1) with Cu(I) halides, the sandwich complex undergoes an unprecedented fragmentation into decamethylferrocene, FeX2 (X = Cl, Br, I) and [P(3)C(2)Mes(2)](-) units. Subsequently, these phospholyl ligands act as versatile, negatively charged building blocks for the formation of supramolecular aggregates representing the monomeric, dimeric and polymeric (1D and 2D) coordination compounds [(P(3)C(2)Mes(2))(2){Cu-7(CH3CN)(7)(mu(4)-X)(mu(3)-X)(2)(mu-X)}{Cu-2(mu(2)-X)(2)X}{Cu(CH3CN)(mu(2)-X)}] (2)center dot 6CH(3)CN (2 center dot 6CH(3)CN: X = Cl, 3 center dot 6CH(3)CN: X = Br), [(P(3)C(2)Mes(2))(2){Cu-(CH3CN)}(6)(mu-Br)(2)(mu(3)-Br)(2){Cu(CH3CN)(2)Br}(2)]center dot CH3CN (4a center dot CH3CN), [(P(3)C(2)Mes(2))(4){Cu-5(CH3CN)(5)(mu(2)-Br)}{Cu(CH3CN)(2)CuBr2}(2){Cu(CH3CN)(2)}](n)(+)[CuBr2](n)(-)center dot 2CH(3)CN (5 center dot 2CH(3)CN), [(P(3)C(2)Mes(2)){Cu-(CH3CN)(mu-I)}(4){Cu(CH3CN)(3)}]center dot 0.5C(7)H(8)center dot 2.5CH(3)CN (6 center dot 0.5C(7)H(8)center dot 2.5CH(3)CN), [(P(3)C(2)Mes(2))Cu-7(CH3CN)(4)(mu(4)-I)(2)(mu(3)-I)(2)(mu-I)(2)](x)center dot 2C(7)H(8)(7 center dot 2C(7)H(8)), [(P(3)C(2)Mes(2)){Cu(CH3CN)(3)}(2){Cu(mu-I)}(6)]center dot 0.5CH(2)Cl(2)center dot 3CH(3)CN (8 center dot 0.5CH(2)Cl(2)center dot 3CH(3)CN) and [(CpFe)-Fe-star(CH3CN)(3)](n)(+)[(P(3)C(2)Mes(2))(2){Cu(CH3CN)(2)}{Cu(mu-I)} 6](n)(-)center dot 0.6CH(2)Cl(2) (9 center dot 0.6CH(2)Cl(2)) with rather non-typical structural motifs within the large varieties of copper halide chemistry. Besides the X-ray structural analyses the obtained assemblies were also characterized in solution in which they undergo fragmentation and re-aggregation processes.

Item Type: Article
Uncontrolled Keywords: MOLECULAR-STRUCTURES; COORDINATION CHEMISTRY; SANDWICH COMPLEX; CRYSTAL; COPPER(I); STABILIZATION; HETEROCYCLES; IRON(II); BEHAVIOR; GOLD(I);
Subjects: 500 Science > 540 Chemistry & allied sciences
Divisions: Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer
Depositing User: Dr. Gernot Deinzer
Date Deposited: 31 Jul 2019 09:34
Last Modified: 31 Jul 2019 09:34
URI: https://pred.uni-regensburg.de/id/eprint/6268

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