Trabitsch, Karolina and Hauer, Sebastian and Balazs, Gabor and Weigand, Jan J. and Wolf, Robert (2025) Germanium-Functionalized Tri- and Tetraphosphido Cobalt Complexes. ORGANOMETALLICS, 44 (15). pp. 1721-1727. ISSN 0276-7333, 1520-6041
Full text not available from this repository. (Request a copy)Abstract
We report the synthesis of germanium-containing polyphosphorus ligands in transition metal complexes through the insertion of an Ar ' GeCl unit into a P-P bond of polyphosphorus ligands (Ar ' = 2,6-(2,6-iPr2C6H3)2-C6H3). Germatetraphosphido complexes [(L)Co(eta 4-P4GeAr ')] (1a: L = PHDI; 1b: L = Ar*BIAN; PHDI = bis(2,6-diisopropylphenyl)phenanthrene-9,10-diimine, Ar*BIAN = 1,2-bis(arylimino)acenaphthene, aryl = 2,6-dibenzhydryl-4-isopropylphenyl) were obtained by treatment of the anionic cyclo-P4 complexes [K(18c-6)][(L)Co(eta 4-P4)] with [Ar ' GeCl]2 . Similar reactions of the cyclo-P3 complexes [cat][(L)Co(CN)(eta 3-P3)] ([cat]+ = [nBu4N]+ or [K(18c-6)]+) afforded [cat][(L)Co(eta 3-P3GeAr ' Cl)(CN)] (2a: L = PHDI, [cat]+ = [nBu4N]+; 2b: L = Ar*BIAN, [cat]+ = [K(18c-6)]+). The reactivity of 2a was studied toward group 14 electrophiles, yielding neutral germatriphosphido analogues [(PHDI)Co(eta 3-P3GeAr ' Cl)(CNER3)] (3-ER3, ER3 = CPh3, Si(iPr)3). Furthermore, treatment of 2a with the group 13 Lewis acid GaCl3 gave [nBu4N][(PHDI)Co(eta 3-P3GeAr ' Cl)(CNGaCl3)] (4-Ga) and [(PHDI)Co(eta 3-P2Ge(PAr '))(CNGaCl3)] (5-Ga), which features a remarkable P3GeAr ' ligand. Compounds 1-5 were isolated as crystalline materials and characterized by single-crystal X-ray diffraction and multinuclear NMR spectroscopy supported by DFT calculations.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | BOND COVALENT RADII; ACTIVATION; LIGANDS; PB; ABILITY; P-4; SN |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Arbeitskreis Prof. Dr. Robert Wolf |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Jul 2026 08:59 |
| Last Modified: | 14 Jul 2026 08:59 |
| URI: | https://pred.uni-regensburg.de/id/eprint/66297 |
Actions (login required)
 |
View Item |
