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Updated: May 3, 2026

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
A streamlined synthesis of extended thiophloroglucinol ligands and their trinuclear NiII3 complexes
Bastian Feldscher1, Hubert Theil, Anja Stammler
1Lehrstuhl für Anorganische Chemie I, Fakultät für Chemie, Universität Bielefeld, Universitätsstr. 25, D-33615 Bielefeld, Germany. tglaser@uni-bielefeld.de.
Abstract:
A protocol for the synthesis of trinucleating C3-symmetric ligands based on a central meta-phenylene bridging 1,3,5-trimercaptobenzene (thiophloroglucinol) backbone has been established. The key compound turned out to be the trialdehyde obtained from the triple nucleophilic attack of dimethyldithiocarbamate at 1,3,5-tribromo-2,4,6-triformylbenzene. Reacting this trialdehyde with six equivalents of a primary amine results in the simultaneous dithiocarbamate cleavage and Schiff-base formation providing the extended thiophloroglucinol ligands H3bertdien, H6bert(Me), H6bert(t-Bu2), and H6habbi. Reaction with Ni(II) leads to the formation of the trinuclear Ni(II)3 complexes [(bertdien)Ni(II)3](X)3 (X = BPh4(-), BF4(-)), [(bert(Me))Ni(II)3], [(bert(t-Bu2))Ni(II)3], and [(habbi)Ni(II)3], which are characterized spectroscopically, electrochemically, and crystallographically.
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