In situ hydrothermal syntheses, structures and photoluminescent properties of four novel metal-organic frameworks constructed by lanthanide (Ln=Ce(III), Pr(III), Eu(III)) and Cu(I) metals with flexible dicarboxylate acids and piperazine-based ligands

Ay, Burak; Karaca, Serkan; Yıldız, Emel; Lopez, Valerie; Nanao, Max H.; Zubieta, Jon

doi:10.1016/j.jssc.2015.10.033

Cited by 23 publications

(4 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cu(I)–halide coordination polymers have been prepared both by hydrothermal procedure and by using ambient conditions. Very often the synthetic procedure influences the nature of the obtained compounds in both structure and composition. − From the crystal engineering perspective, along with the Cu(I) coordination grids the mixed-valence Cu(II)–Cu(I) coordination networks are widely studied due to the different Cu(I) and Cu(II) (d 10 and d 9 ) coordination preferences that allow to manipulate the coordination architecture and dimensionalities of the final solids in view of the application requirements . The mixed-valence Cu(II)–Cu(I) compounds are obtained either starting from the mixture of Cu(II)/Cu(I) salts or by partial in situ reduction of Cu(II). − …”

Section: Introductionmentioning

confidence: 99%

Partial in Situ Reduction of Copper(II) Resulting in One-Pot Formation of 2D Neutral and 3D Cationic Copper(I) Iodide–Pyrazine Coordination Polymers: Structure and Emissive Properties

et al. 2017

View full text Add to dashboard Cite

On the way to copper(I) iodide coordination polymers with specific luminescent properties, the in situ reduction of Cu(II) in the presence of KI and bidentate N-heteroatomic ligand, either pyrazine (pyz) or 4,4'-bipyridine (bpy), resulted in one two-dimensional and two three-dimensional new coordination networks. Starting from Cu(NO)·3HO in the presence of pyz, successive precipitation of known yellow [(CuI)(pyz)], new orange [CuI(pyz)], and new dark blue {[Cu(pyz)]·I} polymeric solids was observed. Starting from the same salt in the presence of bpy resulted in the successive precipitation of known yellow [(CuI)(bpy)] and new brown {[Cu(NO)(bpy)]·I·(dmf·HO)} coordination polymers. By using either Cu(CHCOO)·HO or Cu(BF) as starting materials, both known forms, yellow [(CuI)(bpy)] and orange [CuI(bpy)], precipitated successively. The new solids were characterized by IR spectroscopy and X-ray analysis. [CuI(pyz)] represents the missing member in the row of two-dimensional coordination networks with general formula [CuX(pyz)] (X = Cl, Br, I). Its steady state and time-resolved characterization together with DFT and TDDFT calculations revealed that the emission at room temperature is mainly delayed fluorescence originating from mixed singlet metal-to-ligand charge transfer and halide-to-ligand charge transfer states, while that at 77 K is phosphorescence, associated with the small singlet-triplet energy differences (ΔE = 70 meV).

show abstract

Section: Introductionmentioning

confidence: 99%

Partial in Situ Reduction of Copper(II) Resulting in One-Pot Formation of 2D Neutral and 3D Cationic Copper(I) Iodide–Pyrazine Coordination Polymers: Structure and Emissive Properties

et al. 2017

View full text Add to dashboard Cite

show abstract

“…21,22 Literature presents a very rich Cu I -Ln III coordination polymer chemistry in which Cu I is stabilized into extended structures using principally functionalized N-heterocyclic ligands, such as pyridine and pyrazine. 23,24,25,26,27 For the majority of the reported Cu I -Ln III CP the stabilization of Cu I is not always done by the coordination of only a N-organic ligand, but also the presence of coordinated halides anions is found. 28,29,30,31,32,33,34 To the best of our knowledge, the only example of a 3d-4f HCP containing Cu I /Cu II has been obtained by Luo et al [Gd 2 Cu II 2 Cu I 5 (IN) 10 (µ 2 -Cl)(µ 2 -OH 2 ) 2 (µ 3 -OH) 2 ](ClO 4 ) 2 (HIN= isonicotinic acid), 35 probably due to the coordination requirements of Cu I , Cu II and Ln III cations present in the same structure are not easily satisfied.…”

Section: Found a Compound Showing Ferromagnetic Couplingmentioning

confidence: 99%

“…On the other hand, considering that the full shell of Cu I (3d 10 ) can be used as an antenna to improve lanthanide luminescence, Cu I -Ln III heterometallic coordination polymers (HCPs) have been the focus of research in the solid state light emissive materials. , Literature presents a very rich Cu I -Ln III coordination polymer chemistry in which Cu I is stabilized into extended structures using principally functionalized N-heterocyclic ligands, such as pyridine and pyrazine. − For the majority of the reported Cu I -Ln III CPs, the stabilization of Cu I is not always done by the coordination of only a N-organic ligand, but also the presence of coordinated halides anions is found. − …”

Section: Introductionmentioning

confidence: 99%

Toward a Rational Design of 3d-4f Heterometallic Coordination Polymers based on Mixed Valence Copper Centers

Cruz

Rubio

Venegas‐Yazigi

et al. 2019

Crystal Growth & Design

View full text Add to dashboard Cite

In the present work we report two new Cu I /Cu II-Gd III mixed valence heterometallic coordination polymers (HCP), [Gd(H 2 O) 4 Cu II Cu I (IDC) 2 ] 1 and [Gd 2 (H 2 O) 2 (C 2 O 4) 2 Cu II (IDC) 2 Cu I 2 (4,4'-bipy)]•4.5H O obtained under solvothermal synthesis using 1H-imidazole-4,5-dicarboxylic acid (H 3 IDC) as principal N,O-bifunctional organic linker. In both compounds, the stabilization of the Cu I cations is achieved only by the coordination of N-atoms belonging to the organic ligands. While, 1 presents a 2D honeycomb network obtained by the coordination of single organic linker (IDC 3-), 2 contains three different organic ligands (IDC 3-, C 2 O 4 2and 4,4'-bipy), which allow the construction of a 3D network. From a magnetic point of view, 1 and 2 behave as simple paramagnets at high temperature, presenting ferromagnetic interactions below 50 K, a positive magnetic coupling constant of J = 0.60 cm-1 and J = 0.22 cm-1 was obtained for 1 and 2 respectively. To the best our knowledge 1 and 2 correspond to the second and third reported examples containing a Cu I /Cu II mixed valence system assembled with Gd III cations, thus enriching the chemistry involved in the 3d-4f metal-organic materials.

show abstract

“…10 Among these methods, solvothermal/hydrothermal synthesis is the most important and common tool to obtain new, highly robust, and extended coordination polymers in single crystal form. 11,12 5-Sulfoisophthalic acid (sipH 3 ) is one such interesting ligand and has two functional groups, -SO 3 H and -COOH. Partly or fully deprotonated sipH 2− and sip 3− are useful building blocks for constructing coordination polymers and act as a versatility ligand and coordinate to metal ions as bridging ligand.…”

Section: Introductionmentioning

confidence: 99%

Syntheses and photoluminescence properties of new Zn(II) and Cd(II) coordination polymers prepared from 5-sulfoisophthalate ligand

Semerci¹

2017

Turk J Chem

View full text Add to dashboard Cite

New coordination polymers, formulated as {[Zn( µ -sipH)( µ -apim)] · 3H 2 O} n (1) andwere synthesized based on the 1-(3-aminopropyl)imidazole (apim) along with 5-sulfoisophthalate (sip) ligands. The complexes were synthesized under mild hydrothermal conditions. All the complexes were characterized by elemental analysis, FT-IR spectroscopy, and single-crystal X-ray diffraction studies. The X-ray crystallographic studies of 1 and 2 reveal Zn(II) and Cd(II) ions are µ -bridged by dianionic sipH and trianionic sip ligands in bis(monodentate) and bis(bidentate) coordination mode, respectively, to generate 1D polymer chains. In complex 1, the adjacent chains are linked by two apim ligands to form a 1D nanotubular structure. Complex 2 is the first example of a protonated apimH ligand. In the complexes the adjacent 1D chains extend into a 3D supramolecular network by hydrogen bonds.The thermal decomposition behavior and photoluminescent property of the complexes are also discussed herein.

show abstract

In situ hydrothermal syntheses, structures and photoluminescent properties of four novel metal-organic frameworks constructed by lanthanide (Ln=Ce(III), Pr(III), Eu(III)) and Cu(I) metals with flexible dicarboxylate acids and piperazine-based ligands

Cited by 23 publications

References 48 publications

Partial in Situ Reduction of Copper(II) Resulting in One-Pot Formation of 2D Neutral and 3D Cationic Copper(I) Iodide–Pyrazine Coordination Polymers: Structure and Emissive Properties

Partial in Situ Reduction of Copper(II) Resulting in One-Pot Formation of 2D Neutral and 3D Cationic Copper(I) Iodide–Pyrazine Coordination Polymers: Structure and Emissive Properties

Toward a Rational Design of 3d-4f Heterometallic Coordination Polymers based on Mixed Valence Copper Centers

Syntheses and photoluminescence properties of new Zn(II) and Cd(II) coordination polymers prepared from 5-sulfoisophthalate ligand

Contact Info

Product

Resources

About