Unusual Triplet-Triplet Annihilation in a 3D Copper Chloride Coordination Polymer
A new coordination polymer (CP) defined as [Cu2Cl2(EtS(CH2)4SEt)4]n (CP2) was prepared by reacting EtS(CH2)4SEt with CuCl in acetonitrile in a 1 : 2 stoichiometric ratio. The X-ray structure reveals formation of non-porous 3D material composed of parallel 2D-[Cu2Cl2S2]n layers of Cl-bridged ...
Three-Component Access to Functionalized Spiropyrrolidine Heterocyclic Scaffolds and Their Cholinesterase Inhibitory Activity
A novel one-pot [3+2]-cycloaddition reaction of (E)-3-arylidene-1-phenyl-succinimides, cyclic 1,2-diketones (isatin, 5-chloro-isatin and acenaphtenequinone), and diverse α-aminoacids such as 2-phenylglycine or sarcosine is reported. The reaction provides succinimide-substituted dispiropyrrolidine ...
Pollen analysis - Rochefort (Suisse, Neuchâtel), Cotencher Cave
10 palynological samples taken from lower levels (older than 72,000 years). Partly sterile or very corrosive. Interesting presence of hornbeam (Carpinus) mixed with steppics in a sample.
Pollen analysis - Beffia (F-39), Tumulus 2001, En Magne ou sur Magne
5 palynological samples at the heart of the main burial ground. Almost sterile.
Pollen analysis - Sciez (F-74), Chemin de la Renouillère
Archaeologiocal site. Plain in edge of a lake. 4 palynological samples.
Pollen analysis - Les Eyzies-de-Tayac-Sireuil (F-26), 28 avenue de la Forge, calcareous tuff
A single palynological sample from a layer of calcareous tuff. Sterile.
Pollen analysis - Siracusa (Sicile, Italie), Aqueduc du Galermi
A single palynological sample from carbonates in a Roman aqueduct. Poor but exploitable.
Pollen analysis - Saint Benoît (F-86), Pièces de la Chaume, carbonates from a Gallo-Roman aqueduct
Two palynological samples taken from a carbonate inking in the Gallo-Roman aqueduct of Poitiers. Poor.
Redetermination of the crystal structure of tetrammineplatinum(II) dichloride – A microporous hydrogen-bonded 3D network exhibiting a temperature-dependent order-disorder phase transition
The title compound [Pt(NH3)4]Cl2 (1), prepared by reaction of (NH4)2[PtCl4] with an excess of NH3 in aqueous solution, was crystallized from water and its structure redetermined by single-crystal X-ray diffraction at four different temperatures in the range from 273 K down to 100 K. 1 is composed of ...
Heterodinuclear Diphosphane-Bridged Iron–Platinum Diyne Complexes as Metalloligands for the Assembly of Polymetallic Systems (Fe, Pt, Co)
Treatment of [(OC)3Fe(μ-C=O)(µ-dppm)Pt(PPh3)] (1a) (dppm=Ph2PCH2PPh2) with 1,7-octadiyne affords the isomeric dimetallacyclopentenones [(OC)2Fe(µ-dppm)(µ-C(=O)C{(CH2)4C≡CH}=CH)Pt(PPh3)] (2a) and [(OC)2Fe(µ-dppm)(µ-C(=O)C(H)=C{(CH2)4C≡CH})Pt(PPh3)] (2a′). In a similar manner, the reaction with ...
Human recreational disturbance effects on chicks stress
Stress hormones, telomere lenght, and reproductive success for breeding bird in the Chaux forest.
3-spiroindolizines containing an isoindole ring through intra-molecular arylation of spiro-N-acyliminium species
Based on N-acyliminium species, efficient approaches to spirocyclic systems connected by two different carbon centers to the isoindole ring have been developed. The imide reduction and the tandem oxidative cleavage of olefin/formyl-amide equilibration were at first selected as the key steps for ...
Pure liquid phase recovery in karstic medium
This project is about the study in 2D-cells of fractured media, contaminated by pure phase hydrocarbons. Cosidered systems are made of 3 non-miscible fluids (air, water and hydrocarbons), considering light and dense hydrocarbons. First, the fluids behavior and the distribution of contaminants were ...
Clay mineralogical and geochemical expressions of the "Late Campanian Event" in the Aquitaine and Paris basins (France): Palaeoenvironmental implications
Campanian sediments from two French sedimentary basins were studied, using clay mineralogy and stable isotope (δ13C and δ18O) geochemistry, in order to investigate the Late Campanian Event. The clay fraction of the Campanian sediments from the Tercis-les-Bains section (Aquitaine Basin) and from the ...
Continental weathering as a driver of Late Cretaceous cooling: new insights from clay mineralogy of Campanian sediments from the southern Tethyan margin to the Boreal realm
New clay mineralogical analyses have been performed on Campanian sediments from the Tethyan and Boreal realms along a palaeolatitudinal transect from 45° to 20°N (Danish Basin, North Sea, Paris Basin, Mons Basin, Aquitaine Basin, Umbria-Marche Basin and Tunisian Atlas). Significant terrigenous ...
DNA Library - CNR Echinococcoses
DNA Library is a database associated to a web interface, created to improve the storage and the life of a biological sample collection, closely related to the research activities of the National Reference Center for Echinococcosis (CNR Echinococcoses, University Hospital of Besançon, France). A ...
Crystal structure of tricarbonyl([mu]-diphenylphosphido-[kappa]2P:P)(methyldiphenylsilyl-[kappa]Si)bis(triphenylphosphane-[kappa]P)iron(II)platinum(0)(Fe-Pt)
The title compound, [FePt(C12H10P)(C13H13Si)(C18H15P)2(CO)3]·0.5CH2Cl2, represents an example of a phosphido-bridged heterobimetallic silyl complex; these are interesting precursors for the coordination and activation of small unsaturated organic molecules. The [mu]2-PPh2 ligand spans the iron and ...
Reactivity of CuI and CuBr toward Dialkyl Sulfides RSR: From Discrete Molecular Cu4I4S4 and Cu8I8S6 Clusters to Luminescent Copper(I) Coordination Polymers
The CuX salts (X = I, Br) react with SR2 to form molecular clusters of the types [(R2S)4(Cu4I4)] and [(R2S)6(Cu8I8)] or to give 1D polymers and 2D metal−organic frameworks. The cluster nuclearity and connectivity as well as the dimensionality of these compounds depend on the steric demand of SR2, ...
Diethyl 2,2'-(1,4-phenylenedioxy)diacetate
In the title compound, C14H18O6, a crystallographic center at the centroid of the aromatic ring generates the complete molecule which is planar within 0.085 (1) Å for the non-H atoms. In the crystal, weak C—H⋯O and C—H⋯π interactions link the molecules.
Bis{(4-methylthio)phenylthio}methane as assembling ligand for the construction of Cu(I) and Hg(II) coordination polymers. Crystal structures and topological (AIM) analysis of the bonding
The novel 1D coordination polymer (CP) [{Cu(μ2-Br)2Cu}(μ-L2)2] CP2 has been obtained by reaction of the tetrakisthioether p-MeSC6H4SCH2SC6H4SMe-p (L2) with CuBr in a 1:2 metal-to ligand ratio. In contrast to the previously described CP [{Cu(μ2-Br)2Cu}(μ-L1)2] CP1 obtained by reaction of the ...
2-(2,2-Dibromoethenyl)thiophene
The title compound, C6H4Br2S, represents a versatile building block for the preparation of [pi]-conjugated redox-active thienyl oligomers and metal-mediated cross-coupling reactions. This is due to the presence of an electrochemically active thienyl heterocycle and a reactive dibromovinyl ...
4,12-Bis(2,2-dibromovinyl)[2.2]paracyclophane
In the title compound, C20H16Br4, both vinylic substituents were introduced by a Corey-Fuchs reaction using 4,12-diformyl[2.2]paracyclophane as starting material. The title compound may be used as a valuable precursor for the synthesis of diethynyl[2.2]paracyclophane. The title molecule is ...
4,4-Bis(4-methylphenylsulfanyl)-1,1-diphenyl-2-azabuta-1,3-diene
In the title compound, C29H25NS2, both the Cl atoms of the azadiene precursor 4,4-dichloro-1,1-diphenyl-2-azabuta-1,3-diene are replaced by two vicinal S-p-tolyl substituents attached to the terminal C atom of a [pi]-conjugated 2-azabutadiene array. The azadiene chain is planar to within 0.01 Å. ...
(2,2-Dichlorovinyl)ferrocene
The title compound, [Fe(C5H5)(C7H5Cl2)], represents a versatile building block for the preparation of [pi]-conjugated redox-active compounds or polymetallic organometallic systems due to the presence of the electrochemically active ferrocenyl unit. It is therefore a potential starting material for ...
Crystal structure of 4,4-dibromo-1-(3,4-dimethoxyphenyl)-2-azabuta-1,3-diene-1-carbonitrile
The title compound, C12H10Br2N2O2, represents an example of a planar π-conjugated 2-azabutadiene molecule, which is both an interesting starting material for further organic transformations and a potential ligand in organometallic coordination chemistry. Its metric molecular parameters are ...
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