Organomercury Compounds

About: Organomercury Compounds is a research topic. Over the lifetime, 392 publications have been published within this topic receiving 6465 citations.

Synthesis of ester and amide derivatives of platinum and palladium metalcarboxylic acids by the organomercury method

Abstract: 1. Some mono- and bisester and amide derivatives of metalcarboxylic acids of platinum and palladium were prepared via the organomercury compounds. 2. The compound R2NCO-Hg-Pt(Ph3P)2-CONR2, in which the metalcarboxylic acid fragment is coupled with the metal-metal bond, was obtained for the first time.

Coupling reaction of organomercury compounds with aryl halides catalyzed by palladium complexes

Abstract: 1. Organomercury compounds R2Hg and RHgX [R=CH3, C4H3S (2-thienyl), 2,4,6-(CH3)3C6H2, p-CH3OC6H4, o-CH3OC6H4, p-CH3C6H4, Ph, p-ClC6H4; X=I, Br, Cl] enter coupling reactions with aryl halides ArY [Ar=p-NO2C6H4, m-NO2C6H4, o-NO2C6H2, p-NCC6H2, p-CH3COC6H4, p-CH3O2, 2,4-(NO2)2C6H3, 2,4,6-(NO2)3C6H2; Y=I, Br] in the presence of 1-3 eq. iodide or bromide ion and 1 mole % palladium complex to give the corresponding RAr in high yield. 2. A study was carried out on the effect of the nature of the solvent, various additives, oxygen, and the ligand in the palladium complex on this reaction.

Action of Some Organomercury Compounds on Photosynthesis in Spinach Chloroplasts

Abstract: Abstract The effects of five organomercury compounds (methylmercuric chloride, phenylmercuric acetate, phenylmercuric borate, phenylmercuric citrate and diphenylmercury) on photosynthetic electron transport (PET) in spinach chloroplasts were investigated. The IC50 values of organomercury compounds related to PET inhibition in spinach chloroplasts varied in the range from 468 mmol dm-3 to 942 mmol dm-3 and were approximately by one order higher than the corresponding value determined for HgCl2 applied also in DMSO solution (IC50 = 58 mmol dm-3). Due to extremely low aqueous solubility of diphenylmercury, the corresponding IC50 value could not be determined. Using EPR spectroscopy as probable sites of action of organomercury compounds in photosynthetic apparatus ferredoxin on the acceptor side of PS 1 and the quinone electron acceptors QA or QB on the reducing side of PS 2 were suggested. Abstrakt Zbadano wpływ pięciu związków rtęcioorganicznych (chlorku metylortęci, octanu fenylortęci, boranu fenylortęci, cytrynianu fenylortęci i difenylortęci) na fotosyntetyczny transport elektronów (PET) w chloroplastach szpinaku. Wartości IC50 dla związków rtęcioorganicznych związanych z inhibicją PET w chloroplastach szpinaku zmieniała się w zakresie od 468 do 942 μmol dm-3 i była w przybliżeniu o rząd większa od odpowiedniej wartości określonej dla HgCl2, stosowanego również w roztworze DMSO (IC50 = 58 μmol dm-3). Ze względu na bardzo małą rozpuszczalność difenylortęci w wodzie odpowiednia wartość IC50 nie może być określona. Wyniki badań za pomocą spektroskopii EPR pozwoliły na zaproponowanie prawdopodobnych miejsc działania związków rtęci w procesie fotosyntezy ferredoksyny po stronie akceptora PS 1 i chinonowego akceptora elektronów QA lub QB po stronie redukującej PS 2.