587-85-9Relevant academic research and scientific papers
Salts of Tris(pentafluoroethyl)silylchalcogenolates [Si(C2F5)3E]-with e = S, Se, and Te: Synthesis, Structure, and Reactivity
Tiessen, Natalia,Schwarze, Nico,Stammler, Hans-Georg,Neumann, Beate,Hoge, Berthold
supporting information, p. 15112 - 15117 (2021/10/20)
Unlike silanolates [SiR3O]- (R = alkyl, aryl), which have been intensely studied, the heavier derivatives [SiR3E]- (E = S, Se, Te) have been much less examined. Among such species, virtually nothing is known about perfluoroalkyl-substituted silylchalcogenolates. In this contribution, a convenient synthesis of tris(pentafluoroethyl)silylchalcogenolate salts [{(Et2N)3P═N}3PN(H)tBu][Si(C2F5)3E] (E = S, Se, Te; tBu = tert-butyl) is presented. All representatives were isolated and fully characterized by multinuclear NMR spectroscopy, IR spectroscopy, mass spectrometry, elemental analysis, and X-ray diffraction studies. Furthermore, first reactivity studies of these novel species toward selected metal halide complexes were performed. In this course, metal complexes [HgPh{SSi(C2F5)3}] (2) and [Au(PPh3){SSi(C2F5)3}] (3) were isolated and characterized.
A Boric Acid-Functionalized Lanthanide Metal-Organic Framework as a Fluorescence turn-on Probe for Selective Monitoring of Hg2+ and CH3Hg+
Chen, Guang,Kong, Rong-Mei,Liang, Maosheng,Qu, Fengli,Wang, Hao,Wang, Xiuli,Xia, Lian
, p. 3366 - 3372 (2020/03/10)
Mercury detection remains an important task because of its high toxicity. Herein a new dual-signal probe based on a boric acid (BA)-functionalized lanthanide metal-organic framework (BA-Eu-MOF) was developed for the detection of Hg2+ and CH3Hg+ ions for the first time. The BA-Eu-MOF was synthesized by coordination of Eu3+ with 5-boronobezene-1, 3-dicarboxylic acid (5-bop) through a one-pot method. The 5-bop ligand not only acted as the antenna to sensitize the luminescence of Eu3+ but also provided reaction sites for Hg2+ and CH3Hg+. Owing to the electron-withdrawing effect of the BA group, the antenna effect of the ligand was passivating and the BA-Eu-MOF showed weak red emission in water. Upon addition of Hg2+ or CH3Hg+ into the system, a transmetalation reaction took place, i.e., BA groups were replaced by Hg2+ or CH3Hg+ therefore, the antenna effect of the ligand was triggered, leading to the enhancement of red emission. As Hg2+ or CH3Hg+ concentration increased, the red emission was gradually enhanced, and the color change was also observed with the naked eye under 365 nm ultraviolet light. Owing to the porous characteristics and the surface effect of the MOF, as well as the unique transmetalation reaction between the BA group and Hg2+ or CH3Hg+, the developed nanoprobe showed excellent characteristics for simultaneous detection of Hg2+ and CH3Hg+, such as simple preparation, convenient operation, turn-on signal output, high sensitivity, and selectivity. The unique features of the BA-Eu-MOF make it an attractive probe for monitoring Hg2+ and CH3Hg+
Transmetalation of Pentafluorophenylmercury Derivatives with Organylmagnesium Bromides
Bardin
, p. 1406 - 1408 (2019/08/21)
The reactions of pentafluorophenylmercury derivatives with organomagnesium compounds have been studied. The interaction of pentafluorophenylmercury chloride with RMgBr (R = Et, Ph) has afforded diphenyl- and diethylmercury or phenylmercury chloride, besides the expected product (C6F5HgR). The results have been explained by the transmetalation of C6F5HgR with the Grignard reagent, followed by the reaction of the resulting C6F5MgX (X = Br, C6F5) with pentafluorophenylmercury chloride. Transmetalation of (C6F5)2Hg with organylmagnesium bromides has led to the formation of C6F5MgX and R2Hg.
Activation of the Hg-C Bond of Methylmercury by [S2]-Donor Ligands
Karri, Ramesh,Banerjee, Mainak,Chalana, Ashish,Jha, Kunal Kumar,Roy, Gouriprasanna
, p. 12102 - 12115 (2017/10/24)
Here we report that [S2]-donor ligands BmmOH, BmmMe, and BmeMe bind rapidly and reversibly to the mercury centers of organomercurials, RHgX, and facilitate the cleavage of Hg-C bonds of RHgX to produce stable tetracoordinated Hg(II) complexes and R2Hg. Significantly, the rate of cleavage of Hg-C bonds depends critically on the X group of RHgX (X = BF4-, Cl-, I-) and the [S2]-donor ligands used to induce the Hg-C bonds. For instance, the initial rate of cleavage of the Hg-C bond of MeHgI induced by BmeMe is almost 2-fold higher than the initial rate obtained by BmmOH or BmmMe, indicating that the spacer between the two imidazole rings of [S2]-donor ligands plays a significant role here in the cleavage of Hg-C bonds. Surprisingly, we noticed that the initial rate of cleavage of the Hg-C bond of MeHgI induced by BmeMe (or BmmMe) is almost 10-fold and 100-fold faster than the cleavage of Hg-C bonds of MeHgCl and [MeHg]BF4 respectively, under identical reaction conditions, suggesting that the Hg-C bond of [MeHg]BF4 is highly inert at room temperature (21 °C). We also show here that the nature of the final stable cleaved products, i.e. Hg(II) complexes, depends on the X group of RHgX and the [S2]-donor ligands. For instance, the reaction of BmmMe with MeHgCl (1:1 molar ratio) afforded the formation of the 16-membered metallacyclic dinuclear mercury compound (BmmMe)2Hg2Cl4, in which the two Cl atoms are located inside the ring, whereas due to the large size of the I atom, a similar reaction with MeHgI yielded polymeric [(BmmMe)2HgI2]m·(MeHgI)n. However, the treatment of BmmMe with ionic [RHg]BF4 led to the formation of the tetrathione-coordinated mononuclear mercury compound [(BmmMe)2Hg](BF4)2, where BF4- serves as a counteranion.
Homolytic reactive mass spectrometry of fullerenes: Interaction of C 60 and C70 with organo- and organoelement mercurials in the electron impact ion source of a mass spectrometer; EPR, CIDEP, and MS studies of several analogous react
Lyakhovetsky, Yury I.,Shilova, Elena A.,Bashilov, Vasily V.,Sokolov, Viatcheslav I.,Nekrasov, Yuri S.,Tumanskii, Boris L.
, p. 13700 - 13710 (2010/05/11)
Interaction of C60 with organo- and organoelement mercurials (CF3HgBr, PhHgBr, P-CH3C6H4HgBr, P-CH3OC6H4HgCl, CF3HgPh, Ph 2Hg, (o-carborane-9-yl)
Diphenylmercury, redetermined at 120 K: Sheets built from a single C - H...π(arene) hydrogen bond
Glidewell, Christopher,Low, John N.,Wardell, James L.
, p. m107-m108 (2007/10/03)
At 120 K, the molecules of the title compound, [Hg(C6H 5)2], lie across centres of inversion in space group P21/n and are linked by a single C - H...π(arene) hydrogen bond into (101) sheets. The same supramolecular structure is found at 298 K.
Influence of metal cation on chromophore properties of complexes of some d metals with α,α-dipyrrolylmethene
Guseva,Antina,Berezin,V'yugin
, p. 1282 - 1285 (2007/10/03)
In complexes of Cu2+, Ni2+, Co2+, Zn 2+, and Hg2+ with 3,3′,5,5′-tetramethyl-4, 4′-dibutyl-2,2′-dipyrrolylmethene, the d-metal ion exerts an auxochromic effect on the π system of the ligand, manifested in a bathochromic shift of the first absorption band in the spectrum of the complex, compared to the free ligand. Polarization of the chromophore π system in the complexes increases in the order Zn2+ 2+ 2+ 2+ 2+. The Hg2+ ion in the complex with dipyrrolylmethene participates in mercuration of benzene and chloroform; the reaction with chloroform is faster, with the rates of both reactions strongly depending on temperature. 2004 MAIK Nauka/Interperiodica .
Phenylation of Organic Derivatives of Mercury, Silicon, Tin, and Bismuth with Pentaphenylantimony and Pentaphenylphosphorus
Sharutin,Sharutina,Senchurin,Egorova,Ivanenko,Petrov
, p. 202 - 203 (2007/10/03)
Pentaphenylantimony and -phosphorus react with arylmercury chlorides in toluene at room temperature to give diaryl derivatives of mercury in yields of up to 95%. The reactions of pentaphenylantimony and -phosphorus with silicon and tin halides involve ary
Some reactions of di-and triphenyllanthanides
Zheleznova,Bochkarev,Safronova,Zhil'tsov
, p. 784 - 787 (2007/10/03)
Reactions of Ph2Yb(THF)2 and Ph3Ln(THF)3 (Ln = Ho, Tm, Yb) with H2O, PhC≡CH, C5H6, HgX2, and I2 were studied. The phenyl derivatives of lanthanides are highly reactive toward these agents and form expected products in high yields.
