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Group 16 elements thiolates

Main group element derivatives containing three or four ferrocenyl thiolate ligands are accessible from the corresponding element chlorides and Fc-SLi. Thus, the reaction of PCI3 with a suspension of 3 equivalents Fc-SLi in toluene — THF (3 1) leads to tris(ferrocenyl thiolato) phosphine, P(SFc)3 the oxide and sulfide, P(0)(SFc)3 and P(S)(SFc)3, are formed as side-products in addition to Fc-SS-Fc. The corresponding tris (ferrocenyl thiolato) element compounds As(SFc)3 and Sb(SFc)3 are also known the antimony derivative decomposes under the influence of either air or light [235]. [Pg.250]

The thiol derivatives of the other main groups elements are often prepared from their halides using the thiol in the presence of a hydrogen halide acceptor or by using a metal thiolate, such as lead, where R is a main group element. [Pg.386]

The aim of this chapter is to review the chemistry of chalcogenolates in the last 10 years. The more recent reviews in this field included chalcogenolates of the s-block elements,13,14 early transition metal thiolates,15 metal complexes with selenolate and tellurolate ligands,16 copper(I), lithium and magnesium thiolates,17 functionalized thiolate complexes,18 19 pentafluorobenzenethiolate platinum group compounds,20 tellurium derivatives,21 luminescent gold compounds,22 and complexes with lanthanide or actinide.23... [Pg.33]

Figure 20. A representation of the technique used in the mechanically controllable break junction for recording the current through a single molecule, (a) The gold wire was coated with a SAM of the molecular wires (b) and then broken, under solution (c), via extension of the piezo element under the silicon surface (see Figure 19). Evaporation of the volatile components and slow movement of the piezo downward (see Figure 19) permits one molecule to bridge the gap (d) that is shown, in expanded view, in the insert. The insert shows a benzene-1,4-dithiolate molecule between proximal gold electrodes. The thiolate is normally FI-terminated after deposition end groups denoted as X can be either FI or Au, the Au potentially arising from a previous contact/retraction event. Figure 20. A representation of the technique used in the mechanically controllable break junction for recording the current through a single molecule, (a) The gold wire was coated with a SAM of the molecular wires (b) and then broken, under solution (c), via extension of the piezo element under the silicon surface (see Figure 19). Evaporation of the volatile components and slow movement of the piezo downward (see Figure 19) permits one molecule to bridge the gap (d) that is shown, in expanded view, in the insert. The insert shows a benzene-1,4-dithiolate molecule between proximal gold electrodes. The thiolate is normally FI-terminated after deposition end groups denoted as X can be either FI or Au, the Au potentially arising from a previous contact/retraction event.
As has been mentioned above, thermal decarboxylation of heterocycle 36 can be coupled with electrophilic trapping with either bromine or nitro groups to yield the substituted analogues. The same heterocyclic system 59 can be thiolated by treatment either with elemental sulfur (followed by alkylation with an alkyl halide) to afford 60, or the electrophilic thiolating reagent 58 to generate 57 (Scheme 5) <2005HCA1208>. [Pg.171]

Direct proof of sidewall thiolation has been claimed recently [33], based on analyses of elemental maps in high-resolution TEM images. The authors also proposed that such sulfur functionalities replace the carboxyl and phenolic surface groups upon treatment of previously oxidized MWCNT with phosphorus pentasulfide, as follows ... [Pg.169]

A doubly bridging thiolate ligand in 278 results from the reaction of 277 with elemental sulfur. In effect, the N donor group is replaced by sulfur, and a sulfur atom is inserted into the original Fe—C a bond 184). The... [Pg.57]

Another approach to the construction of a thiophene ring based on functionalized pyrimidines involves thiolation of the methyl group in uz c-methylpyrimidinecarbo-nitriles 139 with elemental sulfur followed by cyclization of the intermediate thiols 140 to give thienopyrimidines 141. The reactions were carried out with pyrimidinethiones (1990LA1215) and pyrimidinediones (1990MI5, 1991MI3). [Pg.109]

Ch. 2 Organobismuth(lll) compounds with Bi-group 15 or 16 element bonds 123 Synthesis of phenylbismuth bi (pyridine-l-oxide-2-thiolate)... [Pg.123]


See other pages where Group 16 elements thiolates is mentioned: [Pg.190]    [Pg.468]    [Pg.3925]    [Pg.3924]    [Pg.143]    [Pg.146]    [Pg.309]    [Pg.305]    [Pg.277]    [Pg.160]    [Pg.134]    [Pg.59]    [Pg.47]    [Pg.210]    [Pg.44]    [Pg.503]    [Pg.42]    [Pg.51]    [Pg.56]    [Pg.36]    [Pg.327]    [Pg.90]    [Pg.241]    [Pg.160]    [Pg.175]    [Pg.160]    [Pg.390]    [Pg.526]    [Pg.169]    [Pg.291]    [Pg.155]    [Pg.2677]    [Pg.4258]    [Pg.6447]    [Pg.291]    [Pg.160]    [Pg.472]    [Pg.204]    [Pg.557]   
See also in sourсe #XX -- [ Pg.537 ]




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