Quan-Yi Zhao

Synthesis of the chiral indenyl tetrahedral clusters [(μ3-S)FeCoM(η5-Ind)(CO)8] (M=Mo,W) and the crystal structure of [(μ3-S)FeCoW(η5-Ind)(CO)8]

The new indenyl tetrahedral cluster [(μ3-S)FeCoM (η5-Ind)(CO)8] (M=Mo 2, W 3) have been isolated from the reaction of [(μ3-S)FeCo2(CO)9] 1 and K+[(η5-Ind)M(CO)3]- (M=Mo,W) under mild conditions and the crystal structure of [(μ3-S)FeCoW(η5-Ind)(CO)8] 3 has been established, affording structural evidence for the ring slippage of the indenyl ligand.

Synthesis and resolution of a tetrahedral cluster containing the SeRuCoMo core

A new cluster derivative (μ3-Se)RuCoMo(CO)8CpCOOCH3 3 was obtained by the reaction of SeRuCo2(CO)9 1 with the functionally-substituted sodium cyclopendiene [Mo(CO)8CpCOOCH3]Na 2 in THF at 60°C and its structure has been determined by single-crystal X-ray diffraction.

Synthesis and reactions of chiral tetrahedral clusters containing an COOCH3 functional group

The new cluster [CoRuW(CO)8(μ3-S)(η5–C5H4COOCH3)] 2 was isolated from the reaction of [Co2Ru(CO)9(μ3-S) 1 with Na[W(CO)3(η5–C5H4COOCH3)]. Through the further reaction of cluster 2 with n-propylamine, a new cluster [CoRuW(CO)8(μ3-S) (η5–C5H4CONH-C3H7)] 3 was obtained and the structure of cluster 2 has been established by single crystal X-ray diffraction.

Synthesis of clusters containing the OsCoMoS core

Several new chiral tetrahedral clusters containing the OsCoMoS core were synthesised by the thermal reaction of the precursor [(μ 3-S)OsCo2(CO)9] with the functionally-substituted metal exchange reagents [Mo(CO)3(C5H4)R][(R=CHO, C(O)CH3, C(O)C6H4-1,4-CO2Me)]. The structure of cluster [(μ 3-S)OsCoW(CO)8C5H4C(O)CH3] was established by X-ray single crystal diffraction.

The synthesis of tetrahedral clusters SOsCo2(CO)9, relevant to chiral tetrahedral clusters containing the SOsCoW core

A simple route to synthesise clusters [SOsCo2(CO)9] in excellent yield and mild reaction conditions is described. Several new chiral tetrahedral clusters containing the Os element were synthesised by the thermal reaction of the precursor [(μ3-S)OsCo2(CO)9] with the functionally-substituted metal exchange reagents. The structure of cluster [(μ3-S)OsCoW(CO)8C5H4C(O)CH3] was established by X-ray single crystal diffraction.

Reactions of trans-Carbonyl(Chloro)-[Bis(Triphenylphosphine)]Rhodium(I) with Substituted Cyclopentadienyl Tricarbonyl Molybdenum Anions

Reactions of trans-carbonyl(chloro)[bis(triphenylphosphine)]rhodium(I): trans-ClRh(CO)(PPh3)2 with substituted cyclopentadienyl tricarbonyl molybdenum anions, [Mo(CO)3(η 5 -C5H4R)]− (R=H; COCH3) in tetrahydrofuran (THF) at 55°C for 24 h yielded two monometallic complexes as by-products: [Rh(CO)(PPh3)(η5-C5H4R)] (R = H (1a); COCH3 (2a)) and two main heterobimetallic compounds: [RhMo(CO)4(PPh3)2(η5-C5H4R)] (R = H (1b); COCH3 (2b)). These compounds were characterized by elemental analysis, IR and 1H NMR spectra. The molecular structure of (2a) was determined by X-ray diffraction.