Zimmermann, Lisa and Riesinger, Christoph and Scheer, Manfred (2024) Potential of Mixed Dipnictogen Molybdenum Complexes in the Self-Assembly of Thallium Coordination Compounds. INORGANIC CHEMISTRY, 63 (24). pp. 11168-11175. ISSN 0020-1669, 1520-510X
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The coordination chemistry of the homo- and heterodipnictogen tetrahedrane complexes [{CpMo(CO)(2)}(2)(mu,eta(2:2)-EE ')] (E, E ' = P, As, Sb) (A-F) toward Tl[BArF24] ([BArF24](-) = [B(3,5-C6H3(CF3)(2))(4)](-)) was studied. Controlled by the used tetrahedranes A-F, and thus depending on the respective pnictogen atoms, the monomers [Tl(eta(2)-A)][BArF24] ([A]Tl) and [Tl(eta(2)-B)][BArF24] ([B]Tl), the double substituted [Tl(eta(1)-C)(2)][BArF24] ([C](2)Tl) or the even higher aggregated compounds [Tl-2(eta(2)-D)(3)(mu,eta(2:1)-D)(mu,eta(1:1)-D)][BArF24](2) ([D](5)Tl-2), [Tl-2(eta(2)-E)(2)(mu,eta(2:1)-E)(3)] [BArF24](2) ([E](5)Tl-2) and [Tl-2(eta(2)-F)(3)(mu,eta(2:1)-F)(3)][BArF24](2) ([F](6)Tl-2) were obtained. Utilization of [BArF24](-) promises additional stabilization of Tl-I via eta(6)-coordination of two of its aryl rings as found in compounds [A]Tl, [B]Tl and [C](2)Tl. Within the series of reactivity of A-F, the heavier congeners D, E and F tend to form larger aggregates in which sigma(E-E ') bond contributions to the coordination behavior were observed. Interatomic distances suggest the presence of Tl<middle dot><middle dot><middle dot>Tl interactions in [E](5)Tl-2 and [F](6)Tl-2. The features of the respective coordination compounds were studied in the solid-state as well as in solution. For the latter at least a partial dissociation of the assemblies in solution was indicated. The isolated solid-state aggregates are the first examples of heterodipnictogen units as ligands in self-assembled Tl-I-based coordination compounds.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LIGAND COMPLEXES; COVALENT RADII; BEHAVIOR; DERIVATIVES; REACTIVITY; CHEMISTRY; ELEMENTS; CATIONS; SINGLE; DONOR; |
| 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: | 17 Jul 2025 07:26 |
| Last Modified: | 17 Jul 2025 07:26 |
| URI: | https://pred.uni-regensburg.de/id/eprint/63542 |
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