First Crystal Structure of a Cyclohexasilyl Transition-Metal Derivative, [(DIME)₂Li][Mo(CO)₅Si₆Me₁₁] (DIME = Diethylene Glycol Dimethyl Ether)

Abstract

The reaction of [(DIME)2Li][Mo(CO)5I] with KSi6Me11 affords the novel complex [(DIME)2Li][W(CO)5Si6Me11]. Its crystal structure and chemical properties are discussed.

Tetraglyme−Li+ Cation Solvate Structures: Models for Amorphous Concentrated Liquid and Polymer Electrolytes (II)

“…Six EOs are coordinated to each cationfour are coordinated strongly and two more weakly. The double-helix dimers represent a new form of polyether−Li + cation coordination with some similarities to that found in diglyme (G2) 2 :LiX solvates. − As two of the EOs coordinate both cations, the EO/Li ratio of the double-helix dimer solvates is actually 5/1 rather than 6/1.…”

Solvate Structures and Computational/Spectroscopic Characterization of Lithium Difluoro(oxalato)borate (LiDFOB) Electrolytes

“…Attempts were made to determine the crystal structures of the (12C4) 2 :LiDFOB, (G2) 2 :LiDFOB, and (HMTETA) 1 :LiDFOB solvates, but these efforts were unsuccessful due to the very energetic solid–solid phase transitions which occur for these solvates at low temperature (SI) and the presence of significant disorder within the solvate structures in the higher temperature phases. There are no reported crystal structures yet known for solvates with HMTETA and LiX salts, but (12C4) 2 :LiX − and (G2) 2 :LiX ,− solvates are well-knownall of which have uncoordinated anions (i.e., SSIP solvates). The band positioned near 710 cm –1 for all three speculative SSIP solvates remains relatively fixed over the entire temperature range (Figures and ).…”

Glyme−Lithium Bis(trifluoromethanesulfonyl)imide and Glyme−Lithium Bis(perfluoroethanesulfonyl)imide Phase Behavior and Solvate Structures

“…The TFSI - anions remain uncoordinated between the [(G2) 2 Li] + solvates. This form of SSIP (G2) 2 :LiX crystalline solvate is relatively common for LiX salts containing anions with sterically hindered or delocalized charge. ,,− All four of the TFSI - anions in the asymmetric unit have C 2 conformations.…”