72 results


Disciplines : chemistry, organic
Collected date : from 2018 to 2019

A new pyrrole-substituted terpyridine derivative that possesses an allene moiety was obtained as an “unexpected” sole product during an attempt to alkylate the N-atom of pyrrole with propargyl bromide in order to obtain an alkyne-functionalized terpyridine.


Disciplines : chemistry, organic
Collected date : 2020

A new thiophene-substituted terpyridine derivative has been prepared through the reaction between 5-n-propylthiophene-2-carboxaldehyde and 2-acetylpyridine. This terpyridine derivative bears an alkyl chain linked via a thiophene heterocycle.

The Gaia catalogue of nearby stars

Disciplines : astronomy & astrophysics
Collected date : from 25 Jul 2014 ongoing
Creators : Céline Reylé

We provide the community with a large, well-characterised catalogue of objects in the solar neighbourhood. This is a primary benchmark for measuring and understanding fundamental parameters and descriptive functions in astronomy. We have produced a catalogue of 331 312 objects that we estimate ...

Crystal structure of dicarbon­yl[μ2-methyl­enebis(di­phenyl­phosphane)-κ2P:P′][μ2-2-(2,4,5-tri­methyl­phen­yl)-3-...

The title compound, [FePt(C12H12O)(C18H15P)(C25H22P2)(CO)2]·2C7H8·CH2Cl2 or [(OC)2Fe(μ-dppm)(μ-C(=O)C(2,4,5-C6H2Me3)=CH)Pt(PPh3)], represents an example of a diphosphane-bridged heterobimetallic dimetalla­cyclo­pentenone complex resulting from a bimetallic activation of 1-ethynyl-2,4,5-tri­methyl­be ...

Crystal structure of 2-[bis(benzylsulfanyl)methyl]-6-methoxyphenol

The title compound, C22H22O2S2, 1, represents an example of an ortho-vanillin-based functionalized di­thio­ether, which could be useful as a potential chelating ligand or bridging ligand for coordination chemistry. This di­thio­acetal 1 crystallizes in the ortho­rhom­bic space group Pbca. The phenyl ...

Crystal structure of {μ2-1,2-bis­[(4-methyl­phenyl­sulfan­yl]-3-oxoprop-1-ene-1,3-di­yl-1:2κ2C3:C1}dicarbon­yl-1κ2C-[μ2-methyl­enebis(di­phenyl­phos­phane)-1:2κ2P:P′](tri­phenyl­phosphane-2κP)iron­platinum(Fe—Pt),...

Disciplines : crystallography
Collected date : from 2017 to 2020

The title compound, [FePt(C19H18OS2)(C18H15P)(C25H22P2)(CO)2], 1, [(OC)2Fe(μ-dppm)(μ-C(=O)C(CH2SC6H4Me-4)=CCH2SC6H4Me-4)Pt(PPh3)], represents the first example of a diphosphane-bridged heterobimetallic Fe—Pt dimetalla­cyclo­pentenone complex resulting from a bimetallic activation of ...

Crystal structures of 9-[bis­­(benzyl­sulfan­yl)meth­yl]anthracene and of cyclo-dodeca­kis­(μ2-phenyl­methane­thiol­ato-κ2S:S)hexa­palladium(6 Pd—Pd)–anthracene-9,10-dione (1/1)

The first title compound, C29H24S2, L1, represents an example of an anthracene-based functionalized di­thio­ether, which may be useful as a potential chelating or terminal ligand for coordination chemistry. This di­thio­acetal L1 crystallizes in the monoclinic space group P21/c. The phenyl rings of ...

Accurate SB2 orbits for 10 binaries and masses of the components of 5 binaries

Disciplines : astronomy & astrophysics
Collected date : from 28 Oct 2006 to 21 Aug 2018

Double-lined spectroscopic binaries (SB2s) are one of the main sources of stellar masses, as additional observations are only needed to give the inclinations of the orbital planes in order to obtain the individual masses of the components. For this reason, we are observing a selection of SB2s using ...

Characterising low-mass dense cores with the Onsala 20m radiotelescope

Disciplines : astronomy & astrophysics
Collected date : from 18 Jan 2019 to 28 Jan 2019
Creators : Julien Montillaud

The data set contains spectra of rotational emission of 12CO, 13CO, C18O (J=1-0), CS (2-1), and N2H+ (J=1-0) for 159 low-mass sources from the dense-core catalogue of the Galactic Cold Cores programme (Montillaud et al. 2015, A&A). The spectra were obtained by pointed observations using the Onsala ...

COMMON: COMplete view of the MONoceros OB1 molecular complex

Disciplines : astronomy & astrophysics
Collected date : from Mar 2019 ongoing
Creators : Julien Montillaud

The record presents the millimetre observations of the Monoceros OB 1 molecular cloud obtained with the TRAO-14m telescope (South Korea) in the frame of the large programme COMMON. The targeted lines are 12CO and 13CO (J=1-0) with angular resolution ~50 arcsec, spectral resolution 0.2 km/s, and ...

The Galactic cold cores molecular follow-up: the filament-core connection

Disciplines : astronomy & astrophysics
Collected date : from 24 Mar 2017 to 27 Mar 2017
Creators : GCC Julien Montillaud

This record presents observations conducted with the IRAM 30m telescope for the field G202+02, a filament part of the Monoceros OB 1 molecular complex. The observations are composed of on-the-fly maps of the rotational emissions of 12CO, 13CO, C18O and N2H+ (J=1-0), as well as CS (J=2-1). The raw ...

Synthesis of Tris(arylphosphite)-ligated Cobalt(0) Complexes [Co2(CO)6{P(OAr)3}2], and their Reactivity towards Phenylacetylene and Diphenylacetylene

Disciplines : crystallography
Collected date : from 2018 to 2020

The dinuclear complexes [Co2(CO)6{P(OAr)3}2] (1a, Ar = Ph; 1b, Ar = o-Tol) were prepared and reacted with PhC≡CH and PhC≡CPh to yield dimetallatetrahedranes [{(ArO)3P}(OC)2Co-Co(μ-RC≡CPh)(CO)2{P(OAr)3}] (3a, Ar = Ph, R = H; 3b, Ar = o-Tol, R = H; 3c, Ar = Ph, R = Ph; 3d, Ar = o-Tol, R = Ph). The ...

Crystal structure of the coordination polymer catena-poly[[[(acetonitrile-κN)copper(I)]-μ3-1,3-dithiolane -κ3S:S:S'] hexafluoridophosphate]

The polymeric title compound, [Cu2(C2H3N)2(C3H6S2)2](PF6)2, represents an example of a one-dimensional coordination polymer resulting from the reaction of [Cu(MeCN)4][PF6] with 1,3-di­thiol­ane. The cationic one-dimensional ribbon consists of two copper(I) centers each ligated by one aceto­nitrile ...

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

Disciplines : chemistry, organic
Collected date : from 2019 to 2020

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 ...

VizieR Online Data Catalog: Colors of the Outer Solar System Origins Survey

Disciplines : astronomy & astrophysics
Collected date : from 21 Aug 2014 to 2 Jan 2016

All the Colors of the Outer Solar System Origins Survey (Col-OSSOS) targets are drawn from the sample of over 800 trans-Neptunian objects (TNOs) and Centaurs (mr=21.8-25.2mag; 3.6<Hr<14.5mag) found by the OSSOS (Bannister+ 2016, J/AJ/152/70 ; 2018ApJS..236...18B 2018ApJS..236...18B), a survey with ...

VizieR Online Data Catalog: Outer Solar System Origins Survey (OSSOS). I

Disciplines : astronomy & astrophysics
Collected date : from 1 Feb 2013 to 31 Jul 2014

The Outer Solar System Origins Survey (OSSOS) observations are acquired in blocks: contiguous patches of sky formed by a layout of adjoining multiple 0.90deg2 MegaCam fields. The OSSOS discovery and tracking program uses the Canada-France-Hawaii Telescope (CFHT) MegaPrime/MegaCam. This paper covers ...

GaiaSimu Universe Model Snapshot

Disciplines : astronomy & astrophysics
Collected date : 2014
Creators : Annie Robin

GUMS-10 is the 10th version of the Gaia Universe Model Snapshot, a simulation of the expected contents of the Gaia catalogue run at the MareNostrum supercomputer. The simulated catalogue will be made publicly available by the DPAC on the Gaia portal of the ESA web site http://www.rssd.esa.int/gaia/

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 ...

Wikipedia network analysis of cancer interactions and world influence

We apply the Google matrix algorithms for analysis of interactions and influence of 37 cancer types, 203 cancer drugs and 195 world countries using the network of 5 416 537 English Wikipedia articles with all their directed hyperlinks. The PageRank algorithm provides the importance order of cancers ...

Massive evaluation and analysis of Poincaré recurrences

We present a novel numerical method aimed to characterize global behaviour, in particular chaotic diffusion, in dynamical systems. It is based on an analysis of the Poincaré recurrence statistics on massive grids of initial data or values of parameters. We concentrate on Hamiltonian systems, ...

Interactions of pharmaceutical companies with world countries, cancers and rare diseases from Wikipedia network analysis

Using the English Wikipedia network of more than 5 million articles we analyze interactions and interlinks between the 34 largest pharmaceutical companies, 195 world countries, 47 rare renal diseases and 37 types of cancer. The recently developed algorithm of reduced Google matrix (REGOMAX) allows ...

3-spiroindolizines containing an isoindole ring through intra-molecular arylation of spiro-N-acyliminium species

Collected date : from Jan 2017 to Oct 2018

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 ...

Adsorption of methanol on ice

Data of the Adsorption Isotherm of Methanol on Crystalline (Ih) Ice at 200 K, as Obtained from Grand Canonical Monte Carlo Simulations.

72 results

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dat@UTINAM is a sub-portal of dat@UBFC, a metadata catalogue for research data produced at UBFC.

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Université de Bourgogne, Université de Franche-Comté, UTBM, AgroSup Dijon, ENSMM, BSB, Arts des Metiers