A new titanium building block for early-late heterometallic complexes; preparation of a new tetrameric metallomacrocycle by self assembly

作者：Fandos Rosa^*; Gallego Beatriz; Otero Antonio; Rodriguez Ana; Ruiz Maria Jose; Terreros Pilar; Pastor Cesar

来源：Dalton Transactions, 2006, (22): 2683-2690.

DOI：10.1039/b601544a

The new titanium dicarboxylate complex Cp*TiMe(OOC)(2)py (2) [Cp* = eta(5)-C5Me5; (OOC)(2)py = 2,6-pyridinedicarboxylate] has been synthesized. The reaction of complex 2 with water renders [Cp*Ti(OOC)(2)py](2)O (3). The molecular structure of 3 has been studied by X-ray diffraction methods. Complex 2 reacts with isocyanides to yield the respective iminoacyl derivatives Cp*Ti(eta(2)-MeCNR)-(OOC)(2)py [R = Bu-t (4), 2,6-dimethylphenyl (xylyl) (5)]. The molecular structure of complex 4 has been established by X-ray diffraction. Compound 2 has been employed as a new building block for the preparation of new early-late heterometallic compounds; it reacts with [M(mu-OH)(COD)](2) (M = Rh, Ir) to give the corresponding tetranuclear metallomacrocycle derivatives [Cp*Ti{(OOC)(2)py}(mu-O)M- (COD)](2) [M = Rh (6); Ir (7)]. The molecular structure of 6 has been established by X-ray diffraction.

• 出版日期2006-6-14