A5054126072- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Metal-Organic Frameworks: Synthesis and Applications
- Polyoxometalates: Synthesis and Applications
- Metal complexes synthesis and properties
- Crystallography and molecular interactions
- Magnetism in coordination complexes
- Vanadium and Halogenation Chemistry
- Crystal structures of chemical compounds
- Advanced Nanomaterials in Catalysis
- Lanthanide and Transition Metal Complexes
- Organic and Molecular Conductors Research
- Nanocluster Synthesis and Applications
- Chemical Synthesis and Reactions
- Chemical Synthesis and Characterization
- Insect and Pesticide Research
- Protein Interaction Studies and Fluorescence Analysis
- Radioactive element chemistry and processing
- Synthesis of heterocyclic compounds
- Organometallic Compounds Synthesis and Characterization
- Synthesis of Tetrazole Derivatives
- Organometallic Complex Synthesis and Catalysis
- Crystal Structures and Properties
- Pesticide Residue Analysis and Safety
- Supramolecular Chemistry and Complexes
University of the Basque Country
2011-2023
Parc Científic de la Universitat de València
2011
Universitat de València
2006
The largest tungstogermanate and third-largest polytungstate (see picture) was obtained by K+-directed self-assembly of three unprecedented types [GeW10O38]12− fragments stabilized coordination Ce ions on the vacancies. In its Ce6O42 central ring, which displays antiferromagnetic interactions, a K+ cation is captured internal water molecules. Gray octahedra WO6, green tetrahedra GeO4; orange, K purple, O red.
The autoassembly process of copper-oxalate dimers and Keggin type polyoxometalates leads to the first example a new family organic-inorganic hybrids, K(14)[(Cu(2)(bpy)(2)(mu-ox))(SiW(11)O(39)Cu(H(2)O))](2)[SiW(11)O(39)Cu(H(2)O)]. approximately 55H(2)O. This compound crystallizes in monoclinic space group C2/m, = 37.932(6) A, b 21.303(3) c 12.546(2) beta 106.16(1) degrees, Z 2. crystal structure reveals presence polymeric hybrid built up alternating dimer polyoxometalate entities.
Reaction of in situ generated copper(II)-monosubstituted Keggin polyoxometalates and copper(II)-bipyridine-oxalate complexes the corresponding alkaline acetate buffer led to formation hybrid metal organic-inorganic compounds K(2)[{SiW(11)O(39)Cu(H(2)O)}{Cu(2)(bpy)(2)(H(2)O)(2)(mu-ox)}(2)].14H(2)O (1), K(14)[{SiW(11)O(39)Cu(H(2)O)}{Cu(2)(bpy)(2)(mu-ox)}](2)[SiW(11)O(39)Cu(H(2)O)].55H(2)O (2), (NH(4))(4)[{SiW(11)O(39)Cu(H(2)O)}{Cu(2)(bpy)(2)(mu-ox)}].10H(2)O (3),...
Four hybrid inorganic-metalorganic compounds containing copper(II)-monosubstituted Keggin polyoxotungstates, K3[Cu(I)(4,4'-bpy)]3[SiW11Cu(II)O39].11H2O (1), (paraquat)3[SiW11Cu(II)O39].6H2O (2; paraquat = N,N'-dimethyl-4,4'-bipyridinium), K3[Cu(I)(4,4'-bpy)]3[GeW11Cu(II)O39].11H2O (3), and Na2[Cu(I)(4,4'-bpy)]3[PW11Cu(II)O39(H2O)].4H2O (4), have been synthesized under autogenous pressure hydrothermal conditions characterized by elemental analysis infrared spectroscopy (FT-IR). The crystal...
Reaction of in situ generated copper-monosubstituted Keggin polyoxometalate (POM) and copper-phenanthroline complexes potassium or sodium acetate buffers led to the formation salt [[SiW(11)O(39)Cu(H(2)O)][Cu(2)(phen)(2)(H(2)O)(ac)(2)]](4-) (1) [[Si(2)W(22)Cu(2)O(78)(H(2)O)][u(2)(phen)(2)(H(2)O)(ac)(2)](2)](8-) (2, where phen = phenanthroline ac acetate) hybrid polyanions, respectively. Both compounds are first discrete mono- bimolecular transition-metal-substituted POMs that support a...
The reaction of a monosubstituted Keggin polyoxometalate (POM) generated in situ with copper-phenanthroline complexes excess ammonium or rubidium acetate led to the formation hybrid metal organic-inorganic compounds A7[Cu2(ac)2(phen)2(H2O)2][Cu3(ac)3(phen)3(H2O)3][Si2W22Cu2O78(H2O)].approximately 18 H2O (A=NH4+ (1), Rb+ (2); ac=acetate; phen=1,10-phenanthroline). These are constructed from inorganic and metalorganic interpenetrated sublattices containing novel bimolecular POM,...
Reaction of monosubstituted Keggin polyoxometalates (POMs) and [Cu(ac)(pmdien)]+ generated in situ led to the formation hybrid metal organic-inorganic compound K5[Cu(ac)(pmdien)][SiW11CuO39].12H2O; its crystal structure magnetic properties have also been determined. The packing this can be viewed as a stacking hydrogen-bonded chiral double chains, with cationic complexes located between two-dimensional arrangement POM chains. DFT calculations performed on suggest that distortion presented...
The hydrated sodium salt of the novel and versatile 5-(pyrimidyl)tetrazolato ligand (pmtz(-)), Na(pmtz).H(2)O (1), has been prepared in very mild conditions from 2-cyanopyrimidine NaN(3). Two coordination polymers [Cd(pmtz)(2)]n (2)and [Cd(pmtz)(micro-Cl)(0.5)(micro-N(3))(0.5)(H(2)O)](n)(3), , have synthesized (1)under conventional or hydrothermal conditions, respectively, fully characterized by single-crystal powder X-ray diffraction methods. Compounds consist mono-dimensional polymeric...
Reaction of in situ generated copper(II)-monosubstituted Keggin polyoxometalates and copper(II)-phenanthroline-oxalato complexes ammonium or rubidium acetate buffers led to the formation hybrid inorganic-metalorganic compounds E4[Cu(phen)(H2O)4]2[Cu4(phen)4(H2O)4(ox)3]0.6[Cu2(phen)2(H2O)4(ox)]0.4[Cu(phen)(ox)]0.8[{SiW11O39Cu(H2O)}2{Cu2(phen)2(ox)}].20H2O [E: Rb (1), NH4 (2)]. The two have been characterized by means elemental analysis, thermogravimetry, infrared electron paramagnetic...
The first organic derivatives of 3d-metal-disubstituted Krebs-type polyoxometalates have been synthesized under mild bench conditions via straightforward replacement labile aqua ligands with N,O-chelating planar anions on either preformed or in situ-generated precursors. Nine hybrid clusters containing carboxylate five- six-membered aromatic N-heterocycles as antenna obtained pure crystalline phases and characterized by elemental thermal analyses, infrared spectroscopy, single-crystal X-ray...
The use of tetrahydroxy-p-benzoquinone as a slow source dihydroxymalonato and oxalato ligands led to the isolation under open-air mild reaction conditions five different compounds, two them prepared for first time: [Cu(bpy)(dhmal)]2 (1) [{SiW12O40}{Cu2(bpy)2(H2O)(ox)}2].16H2O (5) (bpy, 2,2'-bipyridine; dhmal, dihydroxymalonate; ox, oxalate). A possible mechanism oxidation benzoquinone give croconate dianion, which undergoes further ring-opening decompose into dihydroxymalonate oxalate, is...
Two new hybrid compounds constructed from Keggin type polyoxometalates and copper(II) complexes of tetradentate ligands containing amine pyridyl groups, namely [Cu(bpmen)(H2O)][SiW12O40{Cu(bpmen)}] (1) [SiW12O40{Cu(bpmpn)(H2O)}2]·3H2O (2) (bpmen, N,N′-dimethyl-N,N′-bis-(pyridin-2-ylmethyl)-1,2-diaminoethane; bpmpn, N,N′-dimethyl-N,N′-bis(pyridin-2-ylmethyl)-1,3-diaminopropane), have been synthesized under hydrothermal conditions characterized by elemental analyses infrared Raman...
Several cyanogold complexes react with the binuclear nickel complex [(Ni(dien)(H(2)O))(2)(mu-ox)](PF(6))(2).2H(2)O to give compounds [(Ni(dien)(H(2)O))(2)(mu-ox)]Br(2) (1), [(Ni(dien)(Au(CN)(2)))(2)(mu-ox)] (2), and [(Ni(dien))(2)(mu-ox)(mu-Au(CN)(4))](PF(6)) (3) (dien, diethilenetriamine; ox, oxalate). In case of 2 3, water displacement by corresponding takes place, whereas compound 1 is formed a substitution anion. The crystal structures present 2D arrangement where layers are connected...
Das größte Germanowolframat und zugleich drittgrößte Polywolframat (siehe Bild; graue Oktaeder WO6, grüne Tetraeder GeO4, orange Ce, violett K, rot O) wurde duch K+-gesteuerte Selbstorganisation dreier neuartiger [GeW10O38]12−-Fragmente erhalten, die durch Koordination von Cer-Ionen an den Leerstellen stabilisiert werden. Im zentralen Ce6O42-Ring, der antiferromagnetische Eigenschaften hat, wird ein K+-Ion Wassermolekülen koordiniert.
This paper reports the synthesis, structure solution, and electronic electron paramagnetic resonance (EPR) characterization of three new HBIP-containing compounds (HBIP = 3,3-bis(2-imidazolyl)propionic acid): [H3BIP](C4O4)·H2O (1), [Cu(HBIP)2](HC4O4)2 (2), [Cu(BIP)2]·2H2O (3). The 1, resulting from cocrystallization [H3BIP]2+ SQ2-, is made up squarate anions, diprotonated HBIP, water molecules packed together by multiple-path H-bonding into a supramolecular 3D network. Compounds 2 3...
Abstract Three novel polymeric compounds [Ni(dien)Ni(CN) 4 ] n (H 2 O) ( 1 ), [Ni(dien)Pd(CN) and [Ni(dien)Pt(CN) 3 ) were synthesised by reaction of [{Ni(dien)(H O)} (μ‐ox)](PF 6 with [M(CN) 2− (M = Ni, Pd, Pt) in aqueous solution. The structure these contains two [Ni(dien)] 2+ cationic units bridged anions a cis fashion, generating square‐shaped [Ni −M metal core. different linking modes between the cores afford 2D bilayer encapsulated water compound corrugated layers . These coordination...
Abstract New polyoxometallate–thiosemicarbazone hybrid compounds derived from pyridine‐2‐carbaldehyde thiosemicarbazone (HL), N 4 ‐methylthiosemicarbazone (HL′) and their copper(II) complexes have been synthesized. Their formulae are (H 2 L) (Mo 8 O 26 )(H O) ( 1 ), [{(HL) H} 6 19 )] · C 3 H 0.24H [(H L′) (HL ′ ) ] [{Cu(L)} [{Cu(HL)(H O)} 5 [{Cu(L )} 14 Na [{Cu(HL′)(H } ({Cu(L′)} {Mo 36 116 12 })] 20H 7 [{Cu(HL)} {Cu(L)} 112 16 }(H [{Cu(HL′)} 30 9 {Cu(L)S} V 10 28 n ). Compounds – contain...
The compounds (bpy-dq)[Ni(CN)(4)].2H(2)O (1), (bpy-dq)[Pd(CN)(4)].2H(2)O (2), and ((bpy-dq)[Pt(CN)(4)].2H(2)O (3) (bpy-dq = (C(12)H(12)N(2))(2+), 6,7-dihydrodipyrido[1,2-a:2',1'-c]pyrazinediium) (phen-dq)[Ni(CN)(4)] (4), (phen-dq)[Pd(CN)(4)].H(2)O (5), (phen-dq)[Pt(CN)(4)].H(2)O (6) (phen-dq (C(14)H(12)N(2))(2+), 5,6-dihydropyrazino[1,2,3,4-lmn]-1,10-phenanthrolinediium) have been synthesized characterized by X-ray diffraction. three bipyridinium diquaternary salt derivatives are...
The compound {[Cu(μ-3-pyO-N,O)(3-pyO)(3-pyOH)(H2O)]·2 H2O}n (3-pyO− = pyridin-3-onato anion, C5H4NO−; 3-pyOH 3-hydroxypyridine, C5H5NO), has been prepared, its crystal structure determined and thermal magnetic properties characterised. is made up of infinite one-dimensional chains running along the b axis copper(II) atoms linked by bridging N,O-bidentate ligands with a Cu···Cu distance 7.030(2) Å. atom in distorted square-pyramidal environment basal plane formed nitrogen oxygen two pyridinic...
Three salts of diazonium cation (C4H5N2+) encapsulated α-Keggin phosphododecamolybdate, (pyridazinium)3[PMo12O40]·1/2H2O (1), (pyrimidinium)3[PMo12O40]·3H2O (2), and (pyrazinium)3[PMo12O40]·3H2O (3) have been synthesized at room temperature atmospheric pressure in an organic−aqueous medium. Compounds 1−3 crystallize the trigonal space group R3̄. Crystal data for compound 1 is as follows: a = 17.704(6) Å, c 22.918(3) V 6221(3) Å3, Z 6, R 0.028 3708 observed reflections with I > 3σ(I); 2,...
Six salts of diazonium cations (C4H5N2+) with the four-electron reduced β-Keggin phosphododecamolybdate, (1,2-C4H5N2)3[H4PMo12O40]·9H2O (1), (1,3-C4H5N2)2[H5PMo12O40]·(1,3-C4H4N2)·10H2O (2), (1,4-C4H5N2)3[H4PMo12O40]·5H2O (3), (1,2-C4H5N2)3[H4PMo12O40]·2H2O (4), (1,3-C4H5N2)3[H4PMo12O40]·2H2O (5), and (1,4-C4H5N2)2[H5PMo12O40]·½(1,4-C4H4N2)·5H2O (6), have been synthesised in aqueous solution. Compounds 1–3 were obtained photochemically using methanol as electron donor, compounds 4–6 prepared...
Nickel(II) molecular complexes were obtained by water displacement reactions of [{Ni(dien)(H2O)}2(μ-ox)]Cl2 and the corresponding pseudohalide. The three nickel(II) compounds [{Ni(N3)(dien)}2(μ-ox)] (1), [{Ni(NCO)(dien)}2(μ-ox)] · H2O (2) [{Ni(NCS)(dien)}2(μ-ox)] (3) are almost isostructural. structure determinations reveal presence a binuclear complex with C2h symmetry, where oxalate ligand is coordinated in bis(bidentate) fashion to twofold related nickel atoms. distorted octahedral...