The reaction of Hg(TePh)2 with AgX (X = Cl, NO3) in the presence of PPh3 and PMePh2 in dimethylformamide (DMF) affords the cluster [Hg6Ag4(TePh)16] (1) at room temperature or [Hg6Ag4Te(TePh)14]2 (2) with heating. When Hg(TePh)2 is reacted with [Co(PPh3)2Cl2] or [Ni(PPh3)2Cl2], the clusters [Hg8Te(PhTe)12Cl4]Q [3; Q = [Co(DMF)6]2+ (3a), [Ni(DMF)6]2+ (3b)] are formed. The syntheses of 1 and 2 occur with the incorporation of AgI into the cluster, and the single-crystal analyses show that the two ternary clusters consist of Hg, Ag, and Te centers occupying well-defined positions. Compounds 3a and 3b do not show the incorporation of the metal into the cluster, but the CoII and NiII salts provide the Cl atom to generate the anionic cluster 3 stabilized by the [Co(DMF)6]2+ or [Ni(DMF)6]2+ ion.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/ic070006q | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Redox Behavior of Cobalt-Phosphine Complexes vs Their Catalytic Activity in Organozinc Compound Formation: Background for Mechanistic Investigations.
Inorg Chem
April 2023
L.V. Pisarzhevskii Institute of Physical Chemistry of the National Academy of Sciences of Ukraine, 31 Nauki Avenue, Kyiv 03028, Ukraine.
Catalytic activity in arylzinc compound formation was studied for eight Co complexes with phosphines along with their redox properties for implementing the idea of rational design. It was found that Co(XantPhos)Cl and Co(-XantPhos)Cl demonstrated distinct reversible Co/Co redox processes and acted as efficient catalysts of arylzinc compound formation. Meanwhile, for Co(DPEphos)Cl, Co(dppf)Cl, Co(dppb)Cl, Co(PPh)Cl, and Co(XantPhos)(Piv) (the latter one without the addition of LiCl), reversible redox processes were not observed.
View Article and Find Full Text PDFA New Approach to the Synthesis of Nanocrystalline Cobalt Boride in the Course of the Thermal Decomposition of Cobalt Complexes [Co(DMF)] with Boron Cluster Anions.
Molecules
January 2023
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia.
In the course of the study, nanocrystalline cobalt monoboride was prepared by thermal decomposition of precursors [Co(DMF)][An], where [An] = [BH] (), [-BH] () or [BCl] () in an argon atmosphere. Three new salt-like compounds - were prepared when Co(NO) was allowed to react with (EtNH)[An]. Compound is new; the structures of compounds and have been previously reported.
View Article and Find Full Text PDFTemplated syntheses of heterometal tungsten-cobalt-sulfur clusters with different nuclearities.
Dalton Trans
May 2020
Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, Jiangsu, China.
A series of new W-Co-S clusters have been synthesized utilizing the complex [EtN][(Tp*)WS] (Tp* = hydridotris(3,5-dimethylpyrazol-1-yl)borate(1-)) as the synthetic template, by rational control of the stoichiometry of reactants and by employment of a reductant or precipitant as an auxiliary reagent. By solubility control or addition of a precipitant to avoid the involvement of Cl in the reaction, the cluster [(Tp*)WS]Co (2) could be obtained. With different ratios of the Co source to the template, together with the use of an appropriate amount of reducing reagent, clusters [{(Tp*)WS}Co] (3) and [{(Tp*)WS}CoCl] (4) could be synthesized as their EtN salts, and [{(Tp*)WS}CoCl(DMF)] (5) could be isolated as its [Co(DMF)] salt.
View Article and Find Full Text PDFHexakis(N,N-dimethyl-formamide-κO)cobalt(II) bis-(perchlorate).
Acta Crystallogr Sect E Struct Rep Online
February 2010
The asymmetric unit of the title complex, [Co(DMF)(6)](ClO(4))(2) (DMF = N,N-dimethyl-formamide, C(3)H(7)NO), consists of two half complex cations with the Co(2+) metal ions located on centers of inversion and two perchlorate anions. In the crystal packing, each Co(2+) ion is coordinated by six mol-ecules of DMF in a slightly distorted octa-hedral geometry. The crystal structure is mainly stabilized by coordinative, ionic and C-H⋯O hydrogen-bonding inter-actions.
View Article and Find Full Text PDFMercury bis(phenyltellurolate) as a precursor for the synthesis of binary and ternary nanoclusters.
Inorg Chem
April 2007
Laboratório de Materiais Inorgânicos, Universidade Federal de Santa Maria, 97119-900 Santa Maria, RS, Brazil.
The reaction of Hg(TePh)2 with AgX (X = Cl, NO3) in the presence of PPh3 and PMePh2 in dimethylformamide (DMF) affords the cluster [Hg6Ag4(TePh)16] (1) at room temperature or [Hg6Ag4Te(TePh)14]2 (2) with heating. When Hg(TePh)2 is reacted with [Co(PPh3)2Cl2] or [Ni(PPh3)2Cl2], the clusters [Hg8Te(PhTe)12Cl4]Q [3; Q = [Co(DMF)6]2+ (3a), [Ni(DMF)6]2+ (3b)] are formed. The syntheses of 1 and 2 occur with the incorporation of AgI into the cluster, and the single-crystal analyses show that the two ternary clusters consist of Hg, Ag, and Te centers occupying well-defined positions.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!