Macrocycles containing 1,1 '-ferrocenyldiselenolato ligands on group 4 metallocenes

作者：Sanchez Perez Clara; Knapp Caroline E; Karjalainen Minna M; Oilunkaniemi Raija; Carmalt Claire J^*; Laitinen Risto S

来源：Dalton Transactions, 2018, 47(15): 5415-5421.

DOI：10.1039/c8dt00300a

Macrocyclic [Fe(eta(5)-C5H4Se)(2)M(eta(5)-C5H4R)(2)](2) [M = Ti (1), Zr (2), Hf (3), R = H; and M = Zr (4), Hf (5), R = Bu-t] were prepared and characterized by Se-77 NMR spectroscopy and the crystal structures of 1-3 and 5 were determined by single-crystal X-ray diffraction. The crystal structure of 4 is known and the complex is isomorphous with 5. 1-5 form mutually similar macrocyclic tetranuclear complexes in which the alternating Fe(C5H4Se)(2) and M(C5H4R)(2) centers are linked by selenium bridges. The thermogravimetric analysis (TGA) of 1-3 under a helium atmosphere indicated that the complexes undergo a two-step decomposition upon heating. The final products were identified using powder X-ray diffraction as FexMSe2, indicating their potential as single-source precursors for functional materials.

• 出版日期2018-4-21