Adlbert, Lukas and Weber, Martin and Riesinger, Christoph and Seidl, Michael and Scheer, Manfred (2025) A simple synthesis of group 2 anthracenides and their use as reducing agents for polypnictogen ligand complexes. CHEMICAL SCIENCE, 16 (34). pp. 15446-15454. ISSN 2041-6520, 2041-6539
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By using an improved synthetic pathway, the anthracenides of the group 2 metals Ca, Sr, and Ba are straightforwardly accessible for subsequent organometallic syntheses. These highly reactive compounds are slightly soluble in tetrahydrofuran and can be used as synthons for group 2 metal transfer due to the lability of the anthracene substituent. These features were used to explore their reactivity towards the polyphosphorus ligand complexes [Cp*Fe(eta 5-P5)] (Cp* = C5(CH3)5) and [Cp*Fe(eta 3:1-(1-CH3-2-PPh2-P5))], respectively. The resulting products, [Cp*Fe(mu-eta 4:2:1-P5)Mg(thf)3] 0.5 thf (thf = tetrahydrofuran) and [{Cp*Fe(mu-eta 2:2:1-(1-CH3-2-PPh2-P5))}2Mg(thf)2]<middle dot>3 thf, are first examples of molecular magnesium-containing polypnictogenide transition metal complexes without stabilization by N-donor ligands that are soluble in organic N-donor-free solvents. The P12 ligand in the latter complex is the first example of a 2,2 '-diphosphanyl-substituted decaphosphadihydrofulvalen-shaped structural motif (2,2 '-bis(diphenylphosphanyl)-1,1 '-dimethyl-3,3 '-bipentaphosphole). The complexes [Cp*Fe(mu 3-eta 4:4:1-P5)Sr(thf)4]2<middle dot>2 thf and [Cp*Fe(mu 3-eta 2:1:1:1:1-(1-CH3-2-PPh2-P5))Sr(thf)3]2<middle dot>2 thf represent the first examples of molecular polypnictogen compounds of strontium that are stable in organic solvents.
| Item Type: | Article |
|---|---|
| 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: | 06 May 2026 05:36 |
| Last Modified: | 06 May 2026 05:36 |
| URI: | https://pred.uni-regensburg.de/id/eprint/66443 |
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