506-82-1Relevant articles and documents
Mixed alkyl dialkylthiocarbamates of zinc and cadmium: Potential precursors for II/VI materials. X-ray crystal structure of [MeZnS2CNEt2]2
Hursthouse, Michael B.,Malik, M. Azad,Motevalli, Majid,O'Brien, Paul
, p. 730 - 732 (1991)
Compounds with the formula RMS2CNR′2 (R or R′ = Me or Et, M = Zn; R = Me, R′ = Et, M = Cd) have been synthesized and characterized. An X-ray crystal structure for MeZnS2CNEt2 has been determined and shows the complex to be dimeric. The compound crystallizes in space group P21/c, a = 6.776 (1) ?, b = 10.341 (4) ?, and c = 10.341 (4) ?, α = 90°, β = 97.3 (3)°, and γ = 90°. The zinc complexes may be useful precursors for the deposition of ZnS.
Exchange of alkyl and tris(2-mercapto-1-t-butylimidazolyl)hydroborato ligands between zinc, cadmium and mercury
Kreider-Mueller, Ava,Quinlivan, Patrick J.,Rong, Yi,Owen, Jonathan S.,Parkin, Gerard
, p. 177 - 183 (2015)
Abstract The tris(2-mercaptoimidazolyl)hydroborato ligand, [TmBut], has been used to investigate the exchange of alkyl and sulfur donor ligands between the Group 12 metals, Zn, Cd and Hg. For example, [TmBut]2Zn reacts with Me2Zn to yield [TmBut]ZnMe, while [TmBut]CdMe is obtained readily upon reaction of [TmBut]2Cd with Me2Cd. Ligand exchange is also observed between different metal centers. For example, [TmBut]CdMe reacts with Me2Zn to afford [TmBut]ZnMe and Me2Cd. Likewise, [TmBut]HgMe reacts with Me2Zn to afford [TmBut]ZnMe and Me2Hg. However, whereas the [TmBut] ligand transfers from mercury to zinc in the methyl system, [TmBut]HgMe/Me2Zn, transfer of the [TmBut] ligand from zinc to mercury is observed upon treatment of [TmBut]2Zn with HgI2 to afford [TmBut]HgI and [TmBut]ZnI. These observations demonstrate that the phenomenological preference for the [TmBut] ligand to bind one metal rather than another is strongly influenced by the nature of the co-ligands.
Reactions of Cd(OAc)2·2H2O with variously substituted pyridines. Efforts to unravel the factors that determine structure/nuclearity of the products
Saxena, Priya,Thirupathi, Natesan
, p. 238 - 250 (2015)
The reactions of Cd(OAc)2·2H2O with variously substituted pyridines in methanol afforded unique one-dimensional coordination polymers (1D CPs), [Cd2(μ2-κ2:κ1-OAc)2(μ2-κ1:κ1-OAc)2L2] (L = NC5H5 (1), NC5H4Me-3 (2), and NC5H3Me2-3,5 (3)) and [Cd3(μ3-κ1:κ2-OAc)3(μ2-κ2-OAc)(μ2-κ2:κ1-OAc)2(NC5H3Me2-3,4)2] (4), and discrete and bimolecular complexes, [(Cd(OAc)2(NC5H3Me2-3,4)2(H2O)2] (5), [Cd(κ2-OAc)2(NC5H4Me-4)2(H2O)]·[Cd(κ2-OAc)2(H2O)2)] (6), [Cd(κ2-OAc)2L2L′]·xH2O (x = 0, L′ = H2O, L = NC5H4(OMe)-4 (7); NC5H4tBu-4 (8); x = 2, L = L′ = NC5H4(NMe2)-4 (9·2H2O)). The products were characterised by elemental analysis, IR, solution NMR (1H and 13C), solid-state CP-MAS 13C{1H} and 113Cd NMR, TGA/DTA analyses, and single crystal X-ray diffraction. Phase purity of 1-4 was verified by powder X-ray diffraction (PXRD). Plausible mechanisms of formation of the products are proposed based on a point zero charge model. 4 represents the first cadmium containing 1D CP that possesses a tridentate bridging (μ3-κ1:κ2) acetate coordination mode and 6 represents the first structurally characterised bimolecular cadmium(II) complex containing two different neutral cadmium(II) coordination species per formula unit. 9·2H2O was calcined at 500 °C to afford CdO as confirmed by PXRD and the morphology of CdO was studied by scanning electron microscopy.
Reactions of diorganocadmium compounds with other dialkylmetal compounds and macrocycles: Synthesis of organocadmate anions
Tang, Hui,Richey Jr., Herman G.
, p. 1569 - 1574 (2008/10/08)
Combining R2Cd (R an alkyl or Ph group), the corresponding R2Mg compound, and 1,4,8,11-tetramethyl-1,4,8,11-tetraazatetradecane, 2,1,1-cryptand, or 2,2,1-cryptand in solution quantitatively produces R3Cd-1 and R
Method for treating cancers using a diiodo thyronine analogue having no significant hormonal activity and a vinca alkaloid and compositions comprising the same
-
, (2008/06/13)
The present invention is directed to a method for treating cancers by administering a pharmaceutically effective amount of a diiodo thyronine analogue having no significant hormonal activity and a vinca alkaloid or biologically active analog thereof. The present invention also features novel pharmaceutical compositions comprising the same.
Method for the synthesis of metal alkyls and metal aryls
-
, (2008/06/13)
Method for forming metal alkyl compounds by the direct combination of metal halide, lithium metal, and alkyl or aryl halide and for purifying metal alkyl compounds by repeated sublimation/pumping cycles. The method can be used to produce metal alkyl compounds which are substantially free of volatile impurities.
The adduct formed between dimethylcadmium and 2,2′-bipyridyi, (2,2′-bipyridyl)dimethylcadmium(II): Crystallographic and spectroscopic study
Almond, Matthew J.,Beer, Michael P.,Drew, Michael G. B.,Rice, David A.
, p. 2072 - 2076 (2008/10/08)
The reaction of dimethylcadmium with 2,2′-bipyridyl gives a 1:1 adduct (1). By heating 1, followed by trap to trap distillation of the evolved liquid, pure dimethylcadmium can be obtained. This process is more efficient than repeated vacuum distillation of crude dimethylcadmium obtained directly from a Grignard reaction. A sample of 1 was recrystallized by sublimation in vacuo to give yellow crystals whose structure has been determined. The crystals are orthorhombic and of space group Pbca with Z = 8, a = 15.710 (11) ?, b = 11.784 (12) ?, and c = 13.540 (10) ?. A total of 1038 reflections above background were collected on a diffractometer, and the structure was solved by the heavy-atom method. The cadmium atom is four-coordinate, being bound to two methyl groups [Cd-C(13) 2.172 (25) ?, Cd-C(14) 2.152 (22) ?] and two nitrogen atoms [Cd-N(1) 2.503 (13) ?, Cd-N(8) 2.535 (14) ?] from a chelating 2,2′-bipyridyl molecule. The C(13)-Cd-C(14) angle [148.4 (8)°] is larger than expected for an angle at a tetrahedral center, while a small bite angle [N(1)-Cd-N(8) 64.0 (5)°] is subtended by the ligand. The angle between the C(13)-Cd-C(14) and N(1)-Cd-N(8) planes is 79.0°, and there are no inter- or intramolecular contacts that can be said to cause the deviation from the regular value of 90°. Evidence for the existence of 1 not only as a solid but also as a vapor and in benzene and diethyl ether solutions was obtained from a spectroscopic study.
SYNTHESE DIRECTE DE PHOSPHINES TERTIARIES RACEMIQUES ET DE CHLOROPHOSPHINES DISSYMETRIQUES
Chodkiewicz, W.,Guillerm, D.,Jore, D.,Mathieu, E.,Wodzki, W.
, p. 107 - 114 (2007/10/02)
Racemic tertiary phosphines are obtained from dichlorophenylphosphine by a "one pot" synthesis in two steps: (1) condensation of one equivalent of an organocadmium, and (2) substitution of the second chlorine by another organometallic compound.The phosphines liberated from the resulting complexes can be stabilised by direct complexation with cuprous salts.The monochlorophosphines can be isolated in the first stage when their cadmium complexes are submitted to ligand exchange with pyridine.
Trifluoromethyl Group 2B Compounds: Bis(trifluoromethylcadmium*Base. New, More Powerful Ligand-Exchange Reagents and Low Temperature Difluorocarbene Sources
Krause, L. J.,Morrison, J. A.
, p. 2995 - 3001 (2007/10/02)
Lewis base adducts of bis(trifluoromethyl)cadmium have been isolated from the interaction of bis(trifluoromethyl)mercury with dimethylcadmium in solvents like THF, glyme, diglyme, or pyridine.Lewis base exchange, for example, pyridine for glyme, occurs upon dissolution of the glyme adduct, (CF3)2Cd*g, g = CH3OCH2CH2OCH3, in pyridine.The (CF3)2Cd*base species are shown to be much more reactive than (CF3)2Hg since the cadmium compounds are reactive at temperatures at least 100 deg C below that required for the mercurial.At ambient temperatures ligand exchanges between SnBr4 or GeI4 and (CF3)2Cd*glyme are found to be most convenient preparations of (CF3)4Sn (66percent yield) or (CF3)4Ge (43percent yield); the formation of (CF3)3P from the reaction of PI3 also occurs, but the amounts isolated are smaller.The reaction of acyl halides with (CF3)2Cd*g proceeds at subambient temperature to yield the acyl fluoride, ca. 90percent yield, and difluorocarbene which can be trapped stereospecifically by, e.g., cis-2-butene at -30 deg C.Difluorocarbene formation occurs at temperatures at least as low as -78 deg C.
