Synthesis and Structure of Silyl-Substituted Bis(cyclopentadienyl) Scandium(III) Halide Complexes DOI
Joseph Q. Nguyen, Lauren M. Anderson-Sanchez, Joseph W. Ziller

et al.

Organometallics, Journal Year: 2024, Volume and Issue: 44(1), P. 137 - 147

Published: Dec. 18, 2024

Despite the importance of bis(cyclopentadienyl) scandium(III) halide complexes as precursors in development scandium metallocene chemistry, relatively few examples this class have been structurally characterized. Since cyclopentadienyl ring substitution pattern and identity can a major influence on organoscandium complex synthesis reactivity, it is critical to variety well-characterized [(C5R5)2ScX]n starting materials (R = H, alkyl, silyl; X halide) available for exploration area. To remedy deficiency, reactions between ScX3 (X Cl I) 2 equiv potassium cyclopentadienide reagents examined. This has provided, good crystalline yield, compounds [C5H3(SiMe3)2]2ScI, [C5Me4(SiMe3)]2ScI, [C5Me4(SiMe2tBu)]2ScI, {[C5H4(SiMe3)]2Sc(μ-I)}2, {[C5H4(SiiPr3)]2Sc(μ-I)}2, {[C5H3(SiMe3)2]2Sc(μ-Cl)}2, each which characterized by X-ray crystallography, elemental analysis, NMR spectroscopy (1H, 13C{1H}, 29Si{1H}, 45Sc), infrared spectroscopy. The study also revealed facile cocrystallization oxide {[C5H3(SiMe3)2]2Sc}2(μ-O) hydroxide {[C5H3(SiMe3)2]2Sc(μ-OH)}2 impurities from preparations [C5H3(SiMe3)2]2ScI using samples ScI3 that presumably contain an contaminant.

Language: Английский

EcoStrategic index: Economic value creation through product portfolio diversity for waste-to-x technologies DOI Creative Commons
Zahir Barahmand, Marianne S. Eikeland

Renewable and Sustainable Energy Reviews, Journal Year: 2025, Volume and Issue: 214, P. 115507 - 115507

Published: Feb. 25, 2025

Language: Английский

Citations

1
Synthesis and Structure of Silyl-Substituted Bis(cyclopentadienyl) Scandium(III) Halide Complexes DOI
Joseph Q. Nguyen, Lauren M. Anderson-Sanchez, Joseph W. Ziller

et al.

Organometallics, Journal Year: 2024, Volume and Issue: 44(1), P. 137 - 147

Published: Dec. 18, 2024

Despite the importance of bis(cyclopentadienyl) scandium(III) halide complexes as precursors in development scandium metallocene chemistry, relatively few examples this class have been structurally characterized. Since cyclopentadienyl ring substitution pattern and identity can a major influence on organoscandium complex synthesis reactivity, it is critical to variety well-characterized [(C5R5)2ScX]n starting materials (R = H, alkyl, silyl; X halide) available for exploration area. To remedy deficiency, reactions between ScX3 (X Cl I) 2 equiv potassium cyclopentadienide reagents examined. This has provided, good crystalline yield, compounds [C5H3(SiMe3)2]2ScI, [C5Me4(SiMe3)]2ScI, [C5Me4(SiMe2tBu)]2ScI, {[C5H4(SiMe3)]2Sc(μ-I)}2, {[C5H4(SiiPr3)]2Sc(μ-I)}2, {[C5H3(SiMe3)2]2Sc(μ-Cl)}2, each which characterized by X-ray crystallography, elemental analysis, NMR spectroscopy (1H, 13C{1H}, 29Si{1H}, 45Sc), infrared spectroscopy. The study also revealed facile cocrystallization oxide {[C5H3(SiMe3)2]2Sc}2(μ-O) hydroxide {[C5H3(SiMe3)2]2Sc(μ-OH)}2 impurities from preparations [C5H3(SiMe3)2]2ScI using samples ScI3 that presumably contain an contaminant.

Language: Английский

Citations

1