.eta.1-Benzene coordination: the synthesis and x-ray crystal structure of a novel silver salt of the weakly coordinating carborane anion B11CH12-

Silver and Copper Complexes with closo-Polyhedral Borane, Carborane and Metallacarborane Anions: Synthesis and X-ray Structure

“…. HB interactions preserve in the benzene solution (2380 cm´1) [82]. As it was revealed by 11 B NMR spectroscopy, the same is true for the solution of Ag[CB 11 H 12 ] in dichloromethane [83].…”

Silver(I) Complexes of 12‐Phenylalkynyl‐ and 12‐Triisopropylalkynylcarba‐closo‐dodecaborate Anions

“…2387 cm -1 ). Similar shifts of ν(BH) were previously reported for related silver salts and complexes of carba-closododecaborate anions [1,18,20,22] and for polymeric {Ag 2 (12-C≡C-closo-1-CB 11 H 11 )} n . [5] The other BH-stretching bands in the IR spectrum of [Ag1] are shifted to slightly higher wavenumbers, compared with [EMIm]1 ( Figure 5).…”

“…[18] The benzene ring is slightly distorted from an ideal geometry in the experimental and the calculated structures. The CC bond that interacts with silver(I) is longer than the other five bonds, which have alternating lengths (Table 1).…”

Synthesis and reactivity of di(silylamido)cyclopentadienyl titanium and zirconium complexes

“…The (34). Quantitative C 6 F 5 transfer was complete after 12 h to give 34 as the unique reaction product, isolated as a crystalline solid.…”

“…6. The pseudo-tetrahedral geometry about Ti and Zr in 29 and 30 is defined by the centroid of the cyclopentadienyl ring and the two N-donors of the appended (dimethylsilyl)amido arms, with the remaining coordination site occupied by the meta-C atom of the benzylborate phenyl ring indicating an interaction of its pp orbital with the empty hybrid metal orbital [34][35][36].…”