Silver compounds inorganic complexes

Olefins - [FEEDSTOCKS - COALCHEMICALS] (Vol 10) - [FEEDSTOCKS-PETROCHEMICALS] (VollO) - [HYDROCARBONS - SURVEY] (Vol 13) -m automobile exhaust [EXHAUSTCONTROL, AUTOMOTIVE] (Vol 9) -catalyst for stereospeafic polymerization [TITANIUMCOMPOUNDS - INORGANIC] (Vol 24) -esters from [ESTERIFICATION] (Vol 9) -hydroxylation using H202 [HYDROGEN PEROXIDE] (Vol 13) -luminometer ratings [AVIATION AND OTHER GAS TURBINE FUELS] (Vol 3) -osmium oxidations of [PLATINUM-GROUP METALS, COMPOUNDS] (Vol 19) -polymerization [SULFONIC ACIDS] (Vol 23) -reaction with EDA [DIAMINES AND HIGHER AMINES ALIPHATIC] (Vol 8) -silver complexes of [SILVER COMPOUNDS] (Vol 22)... 

At the same time, the synthesis of mononuclear silver ylide complexes were achieved, Schmidbaur and his colleagues discovered that the ylide anions produced dinuclear species, Ag2[(CH2)2PMe2]. The remarkably stable methyl compound melts at 153-155°C and can be sublimed at 150°C and 0.1 atm. Mass spectral and H and P H NMR studies demonstrated the ring structure of the compound, although no structural analysis could be performed due to the photosensitivity of the compound. The synthesis of the dinuclear silver(I) ylide complex (6) is described in Inorganic Syntheses, and although colorless crystals are obtained, no X-ray stracture was possible due to sample decomposition in the X-ray beam. 

Group IV.—Carbon. The effect of nearby inorganic moieties on kinetic characteristics of hindered rotation about a carbon to 5/>-element bond is illustrated by variable temperature n.m.r. studies of hindered rotation about carbon-oxygen in (36) (37), and about carbon-nitrogen in W-dimethylf Hglacetamide in various environments. For the latter compound the barrier is 210 kcalmol" in aqueous solution, but only 19 0 kcalmol when the compound is complexed by silver(i). Barriers to rotation about the phenanthroline-carbon to methyl-carbon bonds in methyl-substituted 1,10-phenanthroline complexes of chromium(iii) can be estimated from n.m.r. spectra. The interest here is that these barriers are solvent sensitive their variation with solvent may prove a useful probe in examining solvation and its effect on reactivity of this type of complex. ... 

Some inorganic compounds leave traces even after a thorough wash and scrub. For example, deposits of lead and silver compounds are difficult to remove. Many lead and silver compounds are among the most water-insoluble materials, but they are well detected by LDI-MS at subsolubility concentrations [14]. Sometimes chemical treatment is necessary to remove spent materials from plates. For example, traces of lead carbonate can be removed by rinsing the plate with dilute HCl followed by hot water. For silver compounds or metallic silver, removal by chemical complexation works best. For removing silver and gold compounds, dipping the... 

The silver(I) complexes with the tetrakis(methylthio)tetrathiafulvalene ligand have been reported, the nitrate salt presents a 3D structure with an unprecedented 4.16-net porous inorganic layer of silver nitrate,1160 the triflate salt presents a two interwoven polymeric chain structure.1161 The latter behaves as a semiconductor when doped with iodine. With a similar ligand, 2,5-bis-(5,5,-bis(methylthio)-l,3,-dithiol-2 -ylidene)-l,3,4,6-tetrathiapentalene, a 3D supramolecular network is constructed via coordination bonds and S"-S contacts. The iodine-doped compound is highly conductive.1162 (Methylthio)methyl-substituted calix[4]arenes have been used as silver-selective chemically modified field effect transistors and as potential extractants for Ag1.1163,1164... 

Oxidative nitration, a process discovered by Kaplan and Shechter, is probably the most efficient and useful method available for the synthesis of em-dinitroaliphatic compounds from the corresponding nitroalkanes. The process, which is an electron-transfer substitution at saturated carbon, involves treatment of the nitronate salts of primary or secondary nitroalkanes with silver nitrate and an inorganic nitrite in neutral or alkali media. The reaction is believed ° °° to proceed through the addition complex (82) which collapses and leads to oxidative addition of nitrite anion to the nitronate and reduction of silver from Ag+ to Ag . Reactions proceed rapidly in homogeneous solution between 0 and 30 °C. 

Cluster Compounds Inorganometalhc Compounds Containing Transition Metal Main Group Elements Copper Inorganic Coordination Chemistry DinuclearOrganometal-lic Cluster Complexes Polynuclear Organometalhc Cluster Complexes Silver Inorganic Coordination Chemistry. 

---