55172-29-7Relevant academic research and scientific papers
Reactions of trans- and cis-Dichlorobis(benzonitrile)platinum(II) with Acetylacetonate and Benzoylacetonate Carbanions. Formation of N-Acetyl β-Ketoamine Complexes by the Acetyl Group Migration
Uchiyama, Toshihiko,Takagi, Kazuhiko,Matsumoto, Keiji,Ooi, Shun'ichiro,Nakamura, Yukio,Kawaguchi, Shinichi
, p. 1077 - 1084 (1981)
trans-Dichlorobis(benzonitrile)platinum(II) reacted with twice the molar amount of thallium(I) acetylacetonate and benzoylacetonate in dichloromethane at room temperature to afford mainly N-acetyl β-ketoamine chelates, (1a and 3a).This N,O-chelate structure of 1a was determined by X-ray analysis.Reactions of cis- gave C-acetyl and C-benzoyl β-ketoamine chelates, , together with other minor products.Formation of these β-ketoamine chelates is explained by the nucleophilic reactions of the β-diketonate carbanions at the coordinated cyanide carbon atom, followed by migration of the acetyl group or the methine proton of the nucleophiles onto the imino nitrogen atom formed during these reactions.In the presence of free β-diketones, migration of the acyl group was generally suppressed; this led to high yields of C-acyl complexes especially in reactions of cis-.In each case, the reaction proceeded with retention of the geometrical configuration around the central metal atom.The structures of other products, including a compound obtained by acid hydrolysis of 1a, were explored and discussed, based on IR and 1H NMR data.
Crystalline and glassy phases in the ternary system Tl/Bi/Cl: Synthesis and crystal structures of the thallium(I) chloridobismutates(III) Tl3BiCl 6 and TlBi2Cl7
Beck, Johannes,Benz, Sebastian
, p. 928 - 935 (2010)
Slow cooling of melts composed of TlCl and BiCl3 allows for the isolation of the compounds Tl3BiCl6 (1) and TlBi 2Cl7 (2). Compound 1 is formed by sublimation at 480 °C from the black melt of 3 TlCl + 1 BiCl3 as colourless crystals. The crystal structure determination (tetragonal, P42/m) consists of nearly regular octahedral [BiCl6]3- anions and two independent Tl+ cations, which have coordination number 8 in form of a slightly distorted cube and 10 in form of an Edshamar polyhedron, respectively. The structure is not isotypic with the recently reported naturally occurring form of Tl3BiCl6, the mineral steropesite. Compound 2 is obtained from a dark red melt of composition TlCl + 2 BiCl 3. On rapid cooling, this melt solidifies to a metasta-ble dark red glass which at ambient temperature crystallises to a light amber crystalline powder within some weeks. The structure of 2 was determined by powder diffraction (triclinic, P1). A distinct lone pair effect is present causing an irregular coordination on the two independent bismuth atoms. Taking Bi-Cl bonds up to 3.5 A into account, both bismuth atoms gain coordination number seven. 203T1 and 205Tl solid state NMR and XANES spectra on the Bi and Tl-LIII edges of both glassy and crystalline TlBi2Cl7 show that a close structural similarity exists between both forms. In contrast, the Raman spectra show distinct differences in the bands of the Bi-Cl vibrations region.
A study of the mechanochemical synthesis of TlCl nanoparticles by the method of dilution with the final product
Urakaev,Shevchenko
, p. 157 - 163 (2006)
The kinetics of the solid-state mechanochemical synthesis of the nanosized product (TlCl) in the reaction 2NaCl + Tl2SO4 + zNa 2SO4 = (z + 1)Na2SO4 + 2TlCl was studied experimentlaly. The method used was based on the dilution of the initial mixture of powdered reagents (2NaCl + Tl2SO4) with another exchange reaction product (Na2SO4) at the optimum theoretically estimated z value, z = z= 11.25. Several special features of the development of this reaction were established. The parameters of the kinetic curve obtained for the mechanochemical synthesis of the desired product were compared with those of the kinetic curve determined theoretically for the model reaction KBr + TlCl + zKCl = (z + 1)KCl + TlBr with z = z 1 * = 13.5. This allowed us to experimentally estimate the mass transfer coefficient in a mechanochemical reactor by mobile milling bodies. This estimate was obtained for the first time. The dynamics of changes in the size of desired product nanoparticles depending on the time of mechanochemical activation in an AGO-2 ball planetary mill was studied. Pleiades Publishing, Inc., 2006.
Cationic dinuclear Pd-allyl-halide complexes with N-heterocyclic carbenes
Ding, Yuqiang,Goddard, Richard,Poerschke, Klaus-Richard
, p. 439 - 445 (2005)
Reaction of the mononuclear N-heterocyclic carbene complexes (η 3-C3H5)Pd{C(N(R)CH)2}X (R = tBu, X = Cl, I (1a,b); R = C6H3-2,6- iPr2, X = Cl, I (2a,b)) wit
Raman spectroscopy study of products of reactions of zirconium and hafnium tetrachlorides with indium and thallium monochlorides
Salyulev,Vovkotrub
, (2013)
Reactions of ZrCl4 and HfCl4 with InCl and TlCl accompanied by formation of several solid complex compounds were studied by the Raman spectroscopy method.
Synthesis of and 2>
Jesus, Ernesto de,Miguel, Amelio Vazquez de,Royo, Pascual,Lanfredi, Anna Maria Manotti,Tiripicchio, Antonio
, p. 2779 - 2784 (1990)
Treatment of the dihalogeno derivatives 2> or with Al2Me6 gives the halogenomethyl complexes 2> (3a) - (3c) or (4a) - (4c) respectively.Dimers (3) react with PPh3 to give monomers (4).Complex (1b) reacts with LiMe to give (5).Reactions of (1) or (3b) with Tl(C5H5) give the 20-electron mixed bis(cyclopentadienyl) complexes .The structure of complex (7) (crystal A) has been determined by X-ray diffraction methods.By accident, the structure of the first crystal examined (B) contained (7) and the oxo complex trans-2> (8) in an ordered mixture with a 2:1 molar ratio.Crystal A is orthorhombic, space group Pna21 with Z = 4 in a unit cell of dimensions a = 9.370(4), b = 12.322(5), and c = 13.301(5) Angstroem.Crystal B is monoclinic, space group P21/a with Z = 4, (7), and 2, (8), in a unit cell of dimensions a = 32.569(9), b = 8.535(4), c = 9.482(5) Angstroem, and β = 93.33(3) deg.
Cobalt half-sandwich, sandwich, and mixed sandwich complexes with soft tripodal ligands
Dodds, Christopher A.,Lehmann, Mario-Alexander,Ojo, Jonathan F.,Reglinski, John,Spicer, Mark D.
, p. 4927 - 4934 (2004)
Reaction of sodium hydrotris(methimazolyl)borate (NaTmMe) with cobalt halides leads to the formation of paramagnetic pseudotetrahedral [Co(TmMe)X] (X = CI, Br, I), of which the bromide has been crystallographically characterized. Mas
New organobimetallic compounds containing catecholate and o-semiquinolate ligands
Piskunov, Alexandr V.,Lado, Arina V.,Ilyakina, Ekaterina V.,Fukin, Georgii K.,Baranov, Evgenii V.,Cherkasov, Vladimir K.,Abakumov, Gleb A.
, p. 128 - 134 (2008)
New organobimetallic compounds CatSn[CpM(CO)n]2 (2-4) were obtained by the insertion of CatSn(II) (1) into the metal-metal bond of [CpM(CO)n]2 (Cat - 3,6-di-tert-butylcatecholate dianion; M = Fe (2), n = 2; M =
Electrophilic activation and the formation of an unusual Tl +/Cr3+ tetranuclear ion-complex adduct
Liu, Shaofeng,Peloso, Riccardo,Pattacini, Roberto,Braunstein, Pierre
, p. 7881 - 7883 (2010)
Reaction of TlPF6 with the Cr(iii) complex fac-[CrCl 3(NPN)] (NPN = bis(2-picolyl)phenyl phosphine) did not lead to precipitation of TlCl but rather to addition of the Tl+ cation to the CrCl3 moiety, which resulted in a pseudo-dimeric adduct which has an unusual tetranuclear centrosymmetric structure in the solid state.
Dihydrobis(4-cyanopyrazol-1-yl)borate, [Bp4CN], a functionalized heteroscorpionate ligand with cross-linking potential
Rheingold,Incarvito,Trofimenko
, p. 5569 - 5571 (2000)
Dihydrobis(4-cyanopyrazol-1-yl)borate, Bp4CN, the first example of a polypyrazolylborate ligand capable of intermolecular cross-linking, was synthesized. It forms chelates as a bidentate ligand but retains additional coordinating ability through the two 4-CN groups, leading to polymeric structures in M[Bp4CN]2 complexes or in the heteroleptic Co[Bp4CN][TpCy]. These -CN cross-links are broken by DMF, and the octahedral complexes M[Bp4CN]2(DMF)2 (M = Zn, Co) were structurally characterized. No -CN coordination was found in Rh[BP4CN](COD) or in the sterically hindered heteroleptic complex Co[Bp4CN][TpNp], which contained five-coordinate cobalt.
