Saltar al contenido

Heterolysis of Dihydrogen by Silver Alkoxides and Fluorides.

Heterolysis of Dihydrogen by Silver Alkoxides and Fluorides.

Chemistry (Weinheim an der Bergstrasse, Germany) (2015-06-11)

Brandon K Tate, Jenna T Nguyen, John Bacsa, Joseph P Sadighi

RESUMEN

Alkoxide-bridged disilver cations react with dihydrogen to form hydride-bridged cations, releasing free alcohol. Hydrogenolysis of neutral silver fluorides affords hydride-bridged disilver cations as their bifluoride salts. These reactions proceed most efficiently when the supporting ligands are expanded N-heterocyclic carbenes (NHCs) derived from 6- and 7-membered cyclic amidinium salts. Kinetics studies show that silver fluoride hydrogenolysis is first-order in both silver and dihydrogen.

MATERIALES

Referencia del producto

Marca

Descripción del producto

Sigma-Aldrich

Óxido de deuterio, 99.9 atom % D

Sigma-Aldrich

Óxido de deuterio, 99.9 atom % D, contains 0.05 wt. % 3-(trimethylsilyl)propionic-2,2,3,3-d₄ acid, sodium salt

Sigma-Aldrich

Lithium aluminum hydride, powder, reagent grade, 95%

Sigma-Aldrich

Acetonitrilo, anhydrous, 99.8%

Sigma-Aldrich

Diclorometano, anhydrous, ≥99.8%, contains 40-150 ppm amylene as stabilizer

Sigma-Aldrich

Tetrahidrofuran, anhydrous, ≥99.9%, inhibitor-free

Sigma-Aldrich

Tolueno, anhydrous, 99.8%

Sigma-Aldrich

Tetrahidrofuran, anhydrous, contains 250 ppm BHT as inhibitor, ≥99.9%

Sigma-Aldrich

Óxido de deuterio, 99.9 atom % D, contains 0.75 wt. % 3-(trimethylsilyl)propionic-2,2,3,3-d₄ acid, sodium salt

Sigma-Aldrich

1,4-Dimethoxybenzene, ReagentPlus^®, 99%

Sigma-Aldrich

Deuterium, 99.8 atom % D

Sigma-Aldrich

Lithium aluminum hydride, pellets, reagent grade, 95%

Sigma-Aldrich

Óxido de deuterio, filtered, 99.8 atom % D

Sigma-Aldrich

Sodium tert-pentoxide, 95%

Sigma-Aldrich

Deuterium, 99.96 atom % D

Sigma-Aldrich

Argon, ≥99.998%

Sigma-Aldrich

Óxido de deuterio, 99.9 atom % D, contains 1 % (w/w) 3-(trimethylsilyl)-1-propanesulfonic acid, sodium salt (DSS)

Sigma-Aldrich

Tetrahidrofuran, suitable for HPLC, contains no stabilizer

Sigma-Aldrich

1,4-Dimethoxybenzene, 99%, FG

Sigma-Aldrich

Benceno, anhydrous, 99.8%

Sigma-Aldrich

Deuterium, 99.9 atom % D

Sigma-Aldrich

Acetonitrilo, electronic grade, 99.999% trace metals basis

Sigma-Aldrich

Tolueno, SAJ first grade, ≥99.0%

Sigma-Aldrich

Tetrahidrofuran, SAJ first grade, ≥99.0%

Supelco

Acetonitrilo, HPLC grade, ≥99.93%

Sigma-Aldrich

Sodium tert-pentoxide solution, 40% in toluene

Sigma-Aldrich

Acetonitrilo, ≥99.8%, suitable for HPLC

Sigma-Aldrich

Pentane, anhydrous, ≥99%

Supelco

Diclorometano, ≥99.9%

Sigma-Aldrich

Tetrahidrofuran, JIS special grade, ≥99.5%