Synthesis, Characterization and Luminescence of Europium, Terbium Complexes of 1,1'-(Pyridin-2,6-Diyl) Bis-3-P-Tolylpropane-1,3-Dione

2011 ◽  
Vol 306-307 ◽  
pp. 228-233
Author(s):  
Jin Liang Zhu ◽  
Sheng Li Liu ◽  
Liang Cai Yu ◽  
Tao Ouyang
Keyword(s):  
Crystal Structure ◽  
Nmr Spectroscopy ◽  
Fluorescence Spectrum ◽  
Ternary Complex ◽  
Luminescent Properties ◽  
Lanthanide Ions ◽  
Binary Complex ◽  
H Nmr ◽  
Terbium Complexes ◽  
Luminescent Compound

A new ligand, 1,1'-(pyridin-2,6-diyl)bis-3-p-tolylpropane-1,3-dione(H2L), was prepared and its crystal structure displays its enol isomer. The binary complex, Ln2L3·4H2O [Ln = Eu(III) and Tb(III)], were synthesized by the reaction of synthesized ligand (H2L) and Ln(III). With 1,10-phenanthroline (Phen) as the synergistic ligand, the ternary complex, Ln2L3(Phen)2 [Ln = Eu(III) and Tb(III)], were synthesized. The compounds were characterized by 1H-NMR spectroscopy, MS, IR, UV, DTA-TG and fluorescence spectrum. The luminescent properties of the ligand and its complexes were investigated and the results showed that the prepared ligand was a good luminescent compound, all complexes emitted characteristic luminescence of corresponding lanthanide ions and 1,10-phenanthroline as the synergistic ligand can obviously enhance the luminescence of Eu(III) in the ternary complex.

scholarly journals Three-Dimensional Supramolecular Network Directed by Intermolecular Interactions in [Pb2(dmp)2(hfacac)4]

2009 ◽  
Vol 6 (4) ◽  
pp. 1085-1090
Author(s):  
Farzin Marandi ◽  
Lotfali Saghatforoush ◽  
Hossein Farzaneh
Keyword(s):  
Crystal Structure ◽  
Nmr Spectroscopy ◽  
Three Dimensional ◽  
Supramolecular Network ◽  
Stacking Interactions ◽  
H Nmr ◽  
Noncovalent Bond ◽  
Donor And Acceptor ◽  
Anionic Ligands ◽  
C Nmr

To investigate the interactions between noncovalent bond donor and acceptor giving rise to three dimensional networks, compound [Pb2(dmp)2(hfacac)2] (1) (dmp = 2,9-dimethyl-1,10-henanthroline and Hhfacac = hexafluoroacetylacetonate) has been prepared and characterized by elemental analysis, IR,1H NMR, and13C NMR spectroscopy and its crystal structures was investigated. The single crystal structure show the coordination number of Pb(II) to be eight with twoN-donor atoms from a “dmp” ligand and sixO-donors from the anionic ligands. The supramolecular structure of 1 is realized by weak directional C–H∙∙∙O–C, C–F∙∙∙F–C andπ–πstacking interactions.

Substituent effects in solution speciation of the mononuclear and dinuclear trimethylplatinum(iv) iodide complexes of pyridines

2015 ◽  
Vol 39 (5) ◽  
pp. 3536-3542 ◽  
Author(s):  
Biswa Nath Ghosh ◽  
Dieter Lentz ◽  
Sabine Schlecht
Keyword(s):  
Crystal Structure ◽  
Nmr Spectroscopy ◽  
Structure Analysis ◽  
Substituent Effects ◽  
Crystal Structure Analysis ◽  
X Ray ◽  
H Nmr ◽  
Pyridine Ligands ◽  
Solution Speciation

A series of mononuclear and dinuclear trimethylplatinum(iv) iodide complexes of pyridine ligands have been synthesized and characterized using 1H-NMR spectroscopy and X-ray crystal structure analysis.

Preparation, Crystal Structure and Spectroscopic Characterization of [Ga(OH)(SO4)(terpy)(H2O)] · H2O (terpy=2,2’:6’,2-Terpyridine): The First Characterized Gallium(III) Sulfato Complex

2004 ◽  
Vol 59 (3) ◽  
pp. 291-297 ◽  
Author(s):  
Andreas Sofetis ◽  
Giannis S. Papaefstathiou ◽  
Aris Terzis ◽  
Catherine P. Raptopoulou ◽  
Theodoros F. Zafiropoulos
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Nmr Spectroscopy ◽  
Good Yield ◽  
Spectroscopic Data ◽  
Spectroscopic Characterization ◽  
X Ray ◽  
X Ray Crystallography ◽  
H Nmr

The reaction of Ga2(SO4)3·18H2O and excess 2,2′:6′,2″-terpyridine (terpy) in MeOH / H2O leads to [Ga(OH)(SO4)(terpy)(H2O)]·H2O (1·H2O] in good yield. The structure of the complex has been determined by single-crystal X-ray crystallography. The GaIII atom in 1·H2O is 6-coordinate and ligation is provided by one terdentate terpy molecule, one monodentate sulfate, one terminal hydroxide and one terminal H2O molecule; the coodination polyhedron about the metal is described as a distorted octahedron. There is an extensive hydrogen-bonding network in the crystal structure which generates corrugated layers parallel to bc. The new complex was characterized by IR and 1H NMR spectroscopy. The spectroscopic data are discussed in terms of the nature of bonding

Molekülstruktur des 7-Methyl-1.3.5-triaza-7-phosphaadamantan-7-ium-tetrafluoroborats. Darstellung und Charakterisierung des 7-Methyl-1.3.5-triaza-7-phospha-tricyclo[3.3.2.13,7]-undecan-7-ium-iodids/Molecular Structure of 7-Methyl-1 ,3,5-triaza-7-phosphaadamantane-7-ium-tetrafluoroborate. Preparation and Characterization of 7-Methyl-1,3,5-triaza-7-phospha-tricyclo[3,3,2,1 3,7]-undecan-7-ium-iodide

1978 ◽  
Vol 33 (11) ◽  
pp. 1257-1262 ◽  
Author(s):  
Kurt H. Jogun ◽  
John J. Stezowski ◽  
Ekkehard Fluck ◽  
Hans-Jürgen Weißgraeber
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Nmr Spectroscopy ◽  
Structure Analysis ◽  
Ir Spectrum ◽  
Parent Compound ◽  
Crystal Structure Analysis ◽  
H Nmr

Abstract 7-Methyl-1,3,5-triaza-7-phosphaadamantane-7-ium-tetrafluoroborate (2b) has been synthesized and characterized by crystal structure analysis. The crystal structure is interpreted in comparison with the parent compound 1,3,5-triaza-7-phosphaadamantane, and its 7-oxide and 7-sulfide. 7-Methyl-1,3,5-triaza-7-phospha-tricyclo[3,3,2,1 3,7]-undecan-7-ium-iodide (6) has been prepared and characterized by 31P, 13C, and 1H NMR spectroscopy and by its IR spectrum.

Crystal Structure and Luminescent Properties of Complex [Eu0.5Gd0.5(C12H9O2)2(C12H8N2)2(H2O)2]•(C12H9O2)•H2O

2012 ◽  
Vol 554-556 ◽  
pp. 691-694
Author(s):  
Hai Tao Xia ◽  
Yu Fen Liu ◽  
De Fu Rong
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Ternary Complex ◽  
Luminescent Properties ◽  
Luminescence Spectra ◽  
X Ray Diffraction ◽  
Red Emission ◽  
X Ray ◽  
Sharp Band ◽  
Complex Display

One new rare-earth ternary complex with 1-naphthylacetic acid and 1,10-phenanthroline, [Eu0.5Gd0.5(C12H9O2)2(C12H8N2)2(H2O)2]•(C12H9O2)•H2O were synthesized. The structures were established by single crystal X-ray diffraction. The europium (gadolinium) ion is eight-coordinate with four oxygen and four nitrogen atoms forming a coordination polyhedron best describable as a distorted dodecahedral. The luminescence spectra of the complex in a solution of DMF were studied. The complex display characteristic Eu(III)-originated red emission as a sharp band at 617 nm. It is concluded that the metal-centered red emission is promoted by the ligand-assisted energy transfer.

Mononuclear and dinuclear trimethylplatinum(iv) iodide complexes of 3-substituted pyridines

2017 ◽  
Vol 41 (9) ◽  
pp. 3498-3507 ◽  
Author(s):  
Biswa Nath Ghosh ◽  
Sabine Schlecht ◽  
Antonio Bauzá ◽  
Antonio Frontera
Keyword(s):  
Crystal Structure ◽  
Nmr Spectroscopy ◽  
Structure Analysis ◽  
Crystal Structure Analysis ◽  
X Ray ◽  
H Nmr ◽  
Substituted Pyridines

A series of mononuclear and dinuclear trimethylplatinum(iv) complexes of 3-substituted pyridines has been studied by 1H NMR spectroscopy, DFT computational and X-ray crystal structure analysis.

2,2'-Bipyridine Mercury(II) Complexes [Hg(bpy)(NO2)X] (X = NO2 –, SCN– , CH3COO–); Π-Π Stacking In The Crystal Structure Of [Hg(bpy)(NO2)2]

2005 ◽  
Vol 60 (3) ◽  
pp. 289-293 ◽  
Author(s):  
Ali Ramazani ◽  
Ali Morsali ◽  
Leila Dolatyari ◽  
Bijan Ganjeie
Keyword(s):  
Crystal Structure ◽  
Nmr Spectroscopy ◽  
Aromatic Rings ◽  
X Ray ◽  
X Ray Crystallography ◽  
H Nmr ◽  
Π Stacking ◽  
Π Stacking Interaction ◽  
Coordinate Geometry ◽  
C Nmr

The mercury(II) complexes of 2,2′-bipyridine (bpy), [Hg(bpy)(NO2)2], [Hg(bpy)(NO2) (CH3COO)], and [Hg(bpy)(NO2)(NCS)] have been synthesized and characterized by elemental analysis, IR, 1H NMR and 13C NMR spectroscopy. The structure of [Hg(bpy)(NO2)2] has been confirmed by X-ray crystallography. The complex is a monomer and the Hg atom has an unsymmetrical six-coordinate geometry, formed by two nitrogen atoms of the bpy ligand and four oxygen atoms of the two nitrite anions. There is a short intermolecular π-π stacking interaction between parallel aromatic rings

Synthesis and Spectroscopic, Thermal and Electrochemical Studies of Mixed-ligand Complexes of Silver(I) with Derivatives of Benzoyltrifluoroacetonate and 4,4ʹ-Bipyridine, Including the Crystal Structure of [Ag(4,4ʹ-bpy)(tfcpb)]n

2012 ◽  
Vol 67 (5) ◽  
pp. 465-472 ◽  
Author(s):  
Farzin Marandi ◽  
Afsaneh Marandi ◽  
Ingo Pantenburg ◽  
Gerd Meyer
Keyword(s):  
Crystal Structure ◽  
Nmr Spectroscopy ◽  
Weak Interactions ◽  
Mixed Ligand ◽  
Mixed Ligand Complexes ◽  
Electrochemical Studies ◽  
One Dimensional ◽  
H Nmr ◽  
Elemental Analyses ◽  
Derivatives Of

Three new mixed-ligand complexes of silver(I) with 4,4ʹ-bipyridine and derivates of benzoyltrifluoroacetone (Htfpb: 4,4,4-trifluoro-1-phenyl-1,3-butandione, Htfcpb: 4,4,4-trifluoro-1-(4- chlorophenyl)-1,3-butandione and Htfmpb: 4,4,4-trifluoro-1-(4-methoxyphenyl)-1,3-butandione) were synthesized and characterized by elemental analyses and 1H NMR spectroscopy. Thermal and electrochemical properties were also studied. The single-crystal structure of [Ag(4,4ʹ-bpy)(tfcpb)]n shows a one-dimensional coordination polymer as a result of 4,4ʹ-bpy bridging. The four-coordinate Ag(I) ions are linked into double chains by Ag...O contacts, which are extended into a 3D supramolecular structure through abundant weak interactions, such as μ...μ, C-H...F, C-H...O, C-H...Cl and F...F contacts.

scholarly journals Creation of a ternary complex between a crown ether, 4-aminobenzoic acid and 3,5-dinitrobenzoic acid

2013 ◽  
Vol 70 (1) ◽  
pp. 132-140 ◽  
Author(s):  
Nicole D. Boardman ◽  
Tasnim Munshi ◽  
Ian J. Scowen ◽  
Colin C. Seaton
Keyword(s):  
Crystal Structure ◽  
Crown Ether ◽  
Ternary Complex ◽  
The Other ◽  
Binary Complex ◽  
Aminobenzoic Acid ◽  
Restricted Geometry ◽  
Shape Selective ◽  
The Creation ◽  
Molecular Components

The creation of ternary multi-component crystals through the introduction of 18-crown-6 to direct the hydrogen-bonding motifs of the other molecular components was investigated for 3,5-dinitrobenzoic acid (3,5-dnba) with 4-aminobenzoic acid (4-aba). The creation of a binary complex between 18-crown-6 and 4-aba (C12H24O6·2C7H7NO2)2and a ternary salt between 3,5-dnba, 18-crown-6 and 4-aba (C12H24O6·C7H8NO2+·C7H3N2O6−·C7H4N2O6) were confirmed by single-crystal structure determination. In both structures, the amino molecules bind to the crown ether through N—H...O hydrogen bonds, leaving available only a single O atom site on the crown with restricted geometry to potentially accept a hydrogen bond from 3,5-dnba. While 3,5-dnba and 4-aba form a binary co-crystal containing neutral molecules, the shape-selective nature of 18-crown-6 preferentially binds protonated amino molecules, thereby leading to the formation of the ternary salt, despite the predicted low concentration of the protonated species in the crystallizing solution. Thus, through the choice of crown ether it may be possible to control both location and nature of the available bonding sites for the designed creation of ternary crystals.

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