Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Constantin Turta"'
Autor:
Ana Arauzo, Elena Bartolomé, Javier Luzón, Pablo J. Alonso, Angelica Vlad, Maria Cazacu, Mirela F. Zaltariov, Sergiu Shova, Juan Bartolomé, Constantin Turta
Publikováno v:
Molecules, Vol 26, Iss 18, p 5626 (2021)
We present the magnetic properties of the metal-organic framework {[CoCxAPy]·2.15 H2O}n (Cx = bis(carboxypropyl)tetramethyldisiloxane; APy = 4,4`-azopyridine) (1) that builds up from the stacking of 2D coordination polymers. The 2D-coordination poly
Externí odkaz:
https://doaj.org/article/e69c60fcf2e54f99b9625ab88eb9cb1c
Publikováno v:
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, Vol 10, Iss 1, Pp 52-56 (2015)
The lanthanum(III) cyanoacetate complex of formula {[La2(CNCH2COO)6 (H2O)4]∙H2O}n (1), has been prepared and characterized by X-ray diffraction analysis. Compound crystallizes in the triclinic centrosymmetric space group P-1 (No.2), a=8.997(5) Å,
Externí odkaz:
https://doaj.org/article/c7917858bf0748bfb60b3a30e579e103
Publikováno v:
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, Vol 9, Iss 1, Pp 128-131 (2014)
In this paper we present experimental results on preparation and characterization of colloidal CdSe quantum dots in organic solvent. CdSe QDs were synthesized following a modified literature method. CdSe QDs were isolated by adding acetone to the coo
Externí odkaz:
https://doaj.org/article/cca37aea302b467d950151a63ee19b12
Publikováno v:
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, Vol 5, Iss 2, Pp 73-82 (2010)
Using the Mossbauer spectroscopy and other physical methods it was demonstrated the presence of different iron compounds like β-FeOOH, α-Fe2O3, and jarosite mineral type compounds: (R4N,H3O)[Fe3(OH)6(SO4)2] or coordination modes: {RCOO-Fe(L4)-OOCR}
Externí odkaz:
https://doaj.org/article/641e53bb290249d1b779e5a3afa3e2df
Autor:
Silvia Melnic, Denis Prodius, Sergiu Shova, Helen Stoeckli-Evans, Yurii Simonov, Alexandr Feher, Maria Gdaniec, Constantin Turta
Publikováno v:
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, Vol 4, Iss 2, Pp 60-67 (2009)
Nine new complexes with the general formula {[Ln2Ba(α-Fur)8(H2O)4]}n, where Ln = Nd3+, Sm3+, Eu3+, Pr3+, Gd3+, Tb3+, Ho3+, Er3+ and La3+; α-Fur ≡ C4H3OCOO, were synthesized and characterized by IR spectra, magnetism, X-ray single crystal and pow
Externí odkaz:
https://doaj.org/article/69220a5d9d104acf83740b5b8d00f70c
Autor:
Constantin Turta
Publikováno v:
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, Vol 4, Iss 1, Pp 56-65 (2009)
The following classes of compounds are presented: terpenes, cyclic nitrogen compounds, dioximates, carboxylates etc., which have been studied with the participation of experts on physical methods of research - IR, UV-Vis, Atomic, Mössbauer spectrosc
Externí odkaz:
https://doaj.org/article/42c94025ebbf4e2bb10d50d5d03de9ef
Publikováno v:
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, Vol 3, Iss 2, Pp 86-94 (2008)
Two novel μ3-oxo-centered carboxylate-bridged triiron complexes [Fe3O(BrCH2COO)6(H2O)3] NO3·2.63H2O (1) and [Fe3O(CH2BrCOO)1.5(CH2ClCOO)4.5(H2O)3]Br0.75Cl0.25 5H2O (2) were synthesized and their structures were characterized by X-ray crystallograph
Externí odkaz:
https://doaj.org/article/bf4fc4dd4c55478eb4003a8084495400
Autor:
Denis Prodius, Valeriu Mereacre, Maria Gdaniec, Sergiu Shova, Yurii A. Simonov, Nicolae Stanica, Ion Geru, Andrea Caneschi, Constantin Turta
Publikováno v:
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, Vol 3, Iss 2, Pp 81-85 (2008)
A novel hexanuclear iron-calcium-oxo complex has been synthesized and characterized by different physico-chemical methods and X-ray single crystal structural analysis: [Fe4Ca2O2(μ2-HCCl2COO)10(μ3-HCCl2COO)2(THF)6].The molecular structure shows that
Externí odkaz:
https://doaj.org/article/06b9548a89f6455bacfe879cbcc5b630
Autor:
Marco Bettinelli, Adolfo Speghini, Gabriele Bocelli, Olesea Gherco, Valeriu Mereacre, Denis Prodius, Constantin Turta
Publikováno v:
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, Vol 1, Iss 1, Pp 88-96 (2006)
Reaction in methanol solution of the trinuclear ‘basic’ chromium(III) acetate with Pr(NO3)3⋅5H2O and further extraction by chloroform-acetone mixture led to the formation of novel unusual [Cr3O(CH3COO)6(H2O)3]NO3⋅HNO3⋅H2O (1) cluster with o
Externí odkaz:
https://doaj.org/article/b3c2467056f243cca8cb2103b8e4a81f
Autor:
Denis Prodius, Valeriu Mereacre, Sergiu Shova, Maria Gdaniec, Yurii Simonov, Lorenzo Sorace, Andrea Caneschi, Nicolae Stanica, Ion Geru, Constantin Turta
Publikováno v:
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, Vol 1, Iss 1, Pp 77-83 (2006)
The novel bis(μ3-oxo) tetranuclear trichloracetate cluster, [Fe4O2(CCl3COO)8(THF)2(DMF)(H2O)]⋅THF (1), has been synthesised and subsequently characterised by X-ray structure analysis, magnetic measurements and infra red (IR). The structure of clus
Externí odkaz:
https://doaj.org/article/40df320c01a94d08b71a241d1fc4bddf