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Themed collection Nitrogen Ligands

44 items
Editorial

Introduction to the Nitrogen Ligands Themed Issue

From the 6th EuCheMS Conference on Nitrogen Ligands (Beaune 2015) to an NJC themed issue.

Graphical abstract: Introduction to the Nitrogen Ligands Themed Issue
From the themed collection: Nitrogen Ligands
Focus

Development of porphyrin syntheses

Personal historical comments relating to the advancement of porphyrin syntheses using monopyrroles, dipyrroles, and open-chain tetrapyrroles are presented.

Graphical abstract: Development of porphyrin syntheses
From the themed collection: Nitrogen Ligands
Focus

Recent advances in catalytic CO2 reduction by organometal complexes anchored on modified electrodes

A critical overview of the very recent literature on heterogeneous electrochemical catalysis of CO2 reduction with organic metal modified electrodes is summarized by taking into account different functionalization methods.

Graphical abstract: Recent advances in catalytic CO2 reduction by organometal complexes anchored on modified electrodes
From the themed collection: Nitrogen Ligands
Focus

Compartmentalized vs. non-compartmentalized translocations in metal porphyrin complexes

Strapped porphyrin ligands exhibit instantaneous and easy-to-control formation of various bimetallic species featuring new coordination modes and dynamics.

Graphical abstract: Compartmentalized vs. non-compartmentalized translocations in metal porphyrin complexes
From the themed collection: Nitrogen Ligands
Letter

Selective complexation of di-n-hexylammonium salts by tailed porphyrin host

A di-n-hexylammonium ion was selectively encapsulated in the cavity of tailed porphyrins due to induced fit and lipophilic interactions.

Graphical abstract: Selective complexation of di-n-hexylammonium salts by tailed porphyrin host
From the themed collection: Nitrogen Ligands
Letter

Boron templated synthesis of a BODIPY analogue from a phthalocyanine precursor

The synthesis of aza(dibenzopyrro)methenes (ADBMs) using aryl boron compounds as templates is described. Compounds (1–3) are structurally related to the BODIPYs and were isolated with terminal imine, oxo, or mixed imine-oxo groups. Compounds 1–3 were investigated for their absorption/emission properties, and were probed by DFT and TDDFT methods.

Graphical abstract: Boron templated synthesis of a BODIPY analogue from a phthalocyanine precursor
From the themed collection: Nitrogen Ligands
Letter

A water molecule in the interior of a 1H-pyrazole Cu2+ metallocage

A pyrazole aza-macrocyclic Cu2+ metallocage shows the inclusion of a water molecule not hydrogen bonded with any acceptor or donor groups of the cage.

Graphical abstract: A water molecule in the interior of a 1H-pyrazole Cu2+ metallocage
From the themed collection: Nitrogen Ligands
Letter

The synthesis of flexible tetrapyridylethanes from pyridylpyrylium dications

Novel tetrapyridylethanes and bis-phenylpyridylmethylenepyrans as potential ligands for coordination chemistry.

Graphical abstract: The synthesis of flexible tetrapyridylethanes from pyridylpyrylium dications
From the themed collection: Nitrogen Ligands
Letter

The interaction of a β-fused isoindoline–porphyrin conjugate with nucleic acids

The intercalation of a diiminoisoindoline–porphyrin conjugate into the poly(dG–dC) double helix occurs by inducing the fast formation of the helix with temperature.

Graphical abstract: The interaction of a β-fused isoindoline–porphyrin conjugate with nucleic acids
From the themed collection: Nitrogen Ligands
Paper

Synthesis and photophysical characteristics of 2,3,12,13-tetraalkylbacteriochlorins

Tetraalkylbacteriochlorins, available upon acid-mediated self-condensation of α-ester stabilized dihydrodipyrrin-carboxaldehydes, provide valuable models of the naturally occurring bacteriochlorophylls.

Graphical abstract: Synthesis and photophysical characteristics of 2,3,12,13-tetraalkylbacteriochlorins
From the themed collection: Nitrogen Ligands
Paper

Deciphering the CHEF-PET-ESIPT liaison mechanism in a Zn2+ chemosensor and its applications in cell imaging study

Proper fusion of fluorescence mechanisms in a single fluorophore unit is highly desirable to obtain better sensitivity, as well as selectivity towards a particular metal ion.

Graphical abstract: Deciphering the CHEF-PET-ESIPT liaison mechanism in a Zn2+ chemosensor and its applications in cell imaging study
From the themed collection: Nitrogen Ligands
Paper

Crystal structures, topological analysis and luminescence properties of three coordination polymers based on a semi-rigid ligand and N-donor ligand linkers

Three new mixed-ligand coordination polymers have been synthesized based on 3,3′-(anthracene-9,10-diyl)diacrylate acid and different N-donor ligands. Complex 2 displays rapid and selective sensing of Fe3+.

Graphical abstract: Crystal structures, topological analysis and luminescence properties of three coordination polymers based on a semi-rigid ligand and N-donor ligand linkers
From the themed collection: Nitrogen Ligands
Paper

Synthesis, structure and properties of thiophene-fused BODIPYs and azaBODIPYs as near-infrared agents

Annulation of thiophene to the BODIPY/aza-BODIPY core showed a significant impact on the spectral properties of the resulting scaffolds.

Graphical abstract: Synthesis, structure and properties of thiophene-fused BODIPYs and azaBODIPYs as near-infrared agents
From the themed collection: Nitrogen Ligands
Paper

Two new bulky substituted Zn porphyrins bearing carboxylate anchoring groups as promising dyes for DSSCs

Two novel zinc-metallated porphyrins, bearing three and six long alkoxy chains at the periphery, have been synthesized as sensitizers in DSSCs.

Graphical abstract: Two new bulky substituted Zn porphyrins bearing carboxylate anchoring groups as promising dyes for DSSCs
From the themed collection: Nitrogen Ligands
Paper

Efficient preparation of multimetallic ONO-based Schiff base complexes of nickel(II) and copper(II)

Spectroscopy, structures, electrochemical behavior and magnetic properties of a series of readily prepared [(R-ONO)M(μ-4,4′-bipy)M(R-ONO)] complexes (R = anisyl or ferrocenyl; M = Ni, Cu) have been explored.

Graphical abstract: Efficient preparation of multimetallic ONO-based Schiff base complexes of nickel(ii) and copper(ii)
From the themed collection: Nitrogen Ligands
Paper

DNA structure-specific sensitization of a metalloporphyrin leads to an efficient in vitro quadruplex detection molecular tool

The palladated porphyrin Pd·TEGPy is an efficient turn-on, quadruplex-selective fluorophore thanks to peculiar supramolecular and electronic properties that results in a unique DNA structure-specific sensitization mechanism.

Graphical abstract: DNA structure-specific sensitization of a metalloporphyrin leads to an efficient in vitro quadruplex detection molecular tool
From the themed collection: Nitrogen Ligands
Paper

Topology of metallacalix[4]arenes with uracil and cytosine ligands: favorable and unfavorable assemblies

A single isomer of many topologically possible ones! The experimentally isolated metallacalix[4]arenes based on pyrimidine nucleobases are the energetically more favorable.

Graphical abstract: Topology of metallacalix[4]arenes with uracil and cytosine ligands: favorable and unfavorable assemblies
From the themed collection: Nitrogen Ligands
Paper

Heteroleptic Cu(II)–polypyridyl complexes as photonucleases

Four new copper(II)–polypyridyl complexes having tail groups with increasing aromaticity, hydrophobicity and planarity are synthesized. These complexes are found to be avid DNA binders and show efficient nuclease activity under either chemical stimulus or UV-A light irradiation.

Graphical abstract: Heteroleptic Cu(ii)–polypyridyl complexes as photonucleases
From the themed collection: Nitrogen Ligands
Paper

Effects of N,N-heterocyclic ligands on the in vitro cytotoxicity and DNA interactions of copper(II) chloride complexes from amidino-O-methylurea ligands

Four novel copper(II) complexes based on guanidine derivatives have been synthesized by addition of N,N-heterocyclic ligands, and their interesting biological activities have been evaluated.

Graphical abstract: Effects of N,N-heterocyclic ligands on the in vitro cytotoxicity and DNA interactions of copper(ii) chloride complexes from amidino-O-methylurea ligands
From the themed collection: Nitrogen Ligands
Paper

Design, synthesis and relaxation studies of triazole linked gadolinium(III)–DO3A-BT-bistriazaspirodecanone as a potential MRI contrast agent

Novel and facile synthesis of a triazole based bisconjugated triazaspirodecanone as a potential MRI contrast agent.

Graphical abstract: Design, synthesis and relaxation studies of triazole linked gadolinium(iii)–DO3A-BT-bistriazaspirodecanone as a potential MRI contrast agent
From the themed collection: Nitrogen Ligands
Paper

Coordination compounds of a hydrazone derivative with Co(III), Ni(II), Cu(II) and Zn(II): synthesis, characterization, reactivity assessment and biological evaluation

Increasing inhibitory effect of Zn-Hp2DAP < Hp2DAP < Co-Hp2DAP on ABC transporter MDR1 drug efflux pump.

Graphical abstract: Coordination compounds of a hydrazone derivative with Co(iii), Ni(ii), Cu(ii) and Zn(ii): synthesis, characterization, reactivity assessment and biological evaluation
From the themed collection: Nitrogen Ligands
Paper

Copper(II) complexes with phosphorylated 1,10-phenanthrolines: from molecules to infinite supramolecular arrays

Supramolecular architectures based on copper(II) complexes with diethoxyphosphoryl substituted 1,10-phenanthrolines are reported.

Graphical abstract: Copper(ii) complexes with phosphorylated 1,10-phenanthrolines: from molecules to infinite supramolecular arrays
From the themed collection: Nitrogen Ligands
Paper

2,4 and 2,5-bis(benzooxazol-2′-yl)hydroquinone (DHBO) and their borate complexes: synthesis and optical properties

2,4 and 2,5-bis(benzooxazol-2′-yl)hydroquinone (DHBO) scaffolds show fluorescence stemming from an ESIPT process but also act as chelates toward boron fragments.

Graphical abstract: 2,4 and 2,5-bis(benzooxazol-2′-yl)hydroquinone (DHBO) and their borate complexes: synthesis and optical properties
From the themed collection: Nitrogen Ligands
Paper

Effects of five membered aromatic heterocycles at the meso-position on the electronic properties of 3-pyrrolyl BODIPY

The synthesis, structures and properties of 3-pyrrolyl BODIPYs containing five membered aromatic heterocycles such as pyrrole, thiophene and furan at the meso-position are described.

Graphical abstract: Effects of five membered aromatic heterocycles at the meso-position on the electronic properties of 3-pyrrolyl BODIPY
From the themed collection: Nitrogen Ligands
Paper

Reinforced cyclam derivatives functionalized on the bridging unit

The introduction of one or two nitriles on the bridge of reinforced cyclams paves the way for the synthesis of new bifunctional chelating agents. X-ray structures of the chelators and of two copper complexes are reported.

Graphical abstract: Reinforced cyclam derivatives functionalized on the bridging unit
From the themed collection: Nitrogen Ligands
Paper

The first example of cofacial bis(dipyrrins)

Two series of cofacial bis(dipyrrins) were prepared and their photophysical properties as well as their bimolecular fluorescence quenching with C60 were investigated.

Graphical abstract: The first example of cofacial bis(dipyrrins)
From the themed collection: Nitrogen Ligands
Paper

Oxaazamacrocycles incorporating the quinoline moiety: synthesis and the study of their binding properties towards metal cations

Nitrogen- and oxygen-containing macrocycles with an endocyclic quinoline moiety synthesized via Pd(0)-catalyzed amination were found to be prospective fluorescent chemosensors for Cu(II).

Graphical abstract: Oxaazamacrocycles incorporating the quinoline moiety: synthesis and the study of their binding properties towards metal cations
From the themed collection: Nitrogen Ligands
Open Access Paper

C,N-Chelated organotin(IV) azides: synthesis, structure and use within click chemistry

Novel organotin(IV) azides were employed as building blocks to prepare various organotin(IV) tetrazolides or triazolides.

Graphical abstract: C,N-Chelated organotin(iv) azides: synthesis, structure and use within click chemistry
From the themed collection: Nitrogen Ligands
Open Access Paper

Photophysical and photochemical studies of tricarbonyl rhenium(I) N-heterocyclic carbene complexes containing azide and triazolate ligands

Rhenium NHC complexes bound to azide anions readily react with alkynes to form the corresponding triazolate complexes, a new class of photochemically active species.

Graphical abstract: Photophysical and photochemical studies of tricarbonyl rhenium(i) N-heterocyclic carbene complexes containing azide and triazolate ligands
From the themed collection: Nitrogen Ligands
Paper

Synthesis of heteroleptic terpyridyl complexes of Fe(II) and Ru(II): optical and electrochemical studies

Heteroleptic terpyridyl complexes of Fe(II) and Ru(II) are synthesized. They are characterized using complimentary techniques and their optical and electrochemical properties are studied. A detailed computational study was also performed.

Graphical abstract: Synthesis of heteroleptic terpyridyl complexes of Fe(ii) and Ru(ii): optical and electrochemical studies
From the themed collection: Nitrogen Ligands
Paper

Synthesis and spectroscopic properties of β,β′-dibenzo-3,5,8-triaryl-BODIPYs

A series of symmetric and unsymmetric β,β′-dibenzo-3,5,8-triaryl-BODIPYs were synthesized and their spectroscopic properties were evaluated and compared.

Graphical abstract: Synthesis and spectroscopic properties of β,β′-dibenzo-3,5,8-triaryl-BODIPYs
From the themed collection: Nitrogen Ligands
Paper

Synthesis and spectroscopic properties of novel N–N linked bis-(diphenylboron) complexes

Novel five-membered-ring and six-membered-ring bis-(diphenylboron) complexes are reported.

Graphical abstract: Synthesis and spectroscopic properties of novel N–N linked bis-(diphenylboron) complexes
From the themed collection: Nitrogen Ligands
Open Access Paper

Influence of steric hindrance on the molecular packing and the anchoring of quinonoid zwitterions on gold surfaces

The N-substituent on quinonoid zwitterions influences the molecules packing and impacts their anchoring on gold surfaces.

Graphical abstract: Influence of steric hindrance on the molecular packing and the anchoring of quinonoid zwitterions on gold surfaces
Paper

On the synthesis of functionalized porphyrins and porphyrin conjugates via β-aminoporphyrins

A two-step methodology to prepare a series of meso-tetraarylporphyrin conjugates bearing water-soluble moieties, anchoring groups and receptor subunits.

Graphical abstract: On the synthesis of functionalized porphyrins and porphyrin conjugates via β-aminoporphyrins
From the themed collection: Nitrogen Ligands
Open Access Paper

A bistren cryptand with a remote thioether function: Cu(II) complexation in solution and on the surface of gold nanostars

A di-copper(II) complex is formed in a bis-tren cage featuring a thioether function, capable of grafting on a monolayer of gold nanostars.

Graphical abstract: A bistren cryptand with a remote thioether function: Cu(ii) complexation in solution and on the surface of gold nanostars
From the themed collection: Nitrogen Ligands
Open Access Paper

Synthesis and structural chemistry of bicyclic hexaaza-dithia macrocycles containing pendant donor groups

An efficient medium-scale synthesis and the structural characterization of a series of macrobicyclic hexaaza-dithia macrocycles with pendant donor arms is presented.

Graphical abstract: Synthesis and structural chemistry of bicyclic hexaaza-dithia macrocycles containing pendant donor groups
From the themed collection: Nitrogen Ligands
Paper

Ternary assemblies comprising metal–salophen complexes and 4,4′-bipyridine

The formation of ternary species containing zinc or uranyl–salophen complexes has been explored and analyzed in this work.

Graphical abstract: Ternary assemblies comprising metal–salophen complexes and 4,4′-bipyridine
From the themed collection: Nitrogen Ligands
Paper

Synthesis and characterization of simple cost-effective trans-A2BC porphyrins with various donor groups for dye-sensitized solar cells

Zn(II) porphyrin dyes have been synthesized in three steps and exhibited power conversion efficiencies of 2.1 to 4.2% which depend on the electron donating ability of the R group.

Graphical abstract: Synthesis and characterization of simple cost-effective trans-A2BC porphyrins with various donor groups for dye-sensitized solar cells
From the themed collection: Nitrogen Ligands
Paper

Group 9 and 10 complexes with the bidentate di(1H-indazol-1-yl)methane and di(2H-indazol-2-yl)methane ligands: synthesis and structural characterization

Ni, Pd and Co bis(indazol-1-yl)methane complexes assemble into 3D-networks based on intermolecular electrostatic, H-bonds and aromatic interactions.

Graphical abstract: Group 9 and 10 complexes with the bidentate di(1H-indazol-1-yl)methane and di(2H-indazol-2-yl)methane ligands: synthesis and structural characterization
From the themed collection: Nitrogen Ligands
Paper

RAPTA-C incorporation and controlled delivery from MIL-100(Fe) nanoparticles

The properties of MIL-100(Fe) nanoparticles as vehicles of a non-conventional half-sandwich ruthenium(II) metallodrug in simulated intravenous conditions have been investigated.

Graphical abstract: RAPTA-C incorporation and controlled delivery from MIL-100(Fe) nanoparticles
From the themed collection: Nitrogen Ligands
Paper

Four cobalt(II) complexes based on a new tricarboxylate with a naphthalene ring and different N-containing ligands: synthesis, crystal structures and magnetic properties

Four cobalt(II) coordination polymers have been synthesized under hydrothermal conditions, and their magnetic behaviors have been discussed in detail.

Graphical abstract: Four cobalt(ii) complexes based on a new tricarboxylate with a naphthalene ring and different N-containing ligands: synthesis, crystal structures and magnetic properties
Paper

Copper immobilized ferromagnetic nanoparticle triazine dendrimer (FMNP@TD–Cu(II))-catalyzed regioselective synthesis of 1,4-disubstituted 1,2,3-triazoles

The synthesis, characterisation and catalytic activity of FMNP@TD–Cu(II) for the synthesis of 1,4-disubstituted 1,2,3-triazoles are reported.

Graphical abstract: Copper immobilized ferromagnetic nanoparticle triazine dendrimer (FMNP@TD–Cu(ii))-catalyzed regioselective synthesis of 1,4-disubstituted 1,2,3-triazoles
Paper

New organometallic Schiff-base copper complexes as efficient “click” reaction precatalysts

In the presence of sodium ascorbate, recyclable CuAAC precatalysts displayed high activity allowing the synthesis of a wide variety of 1,4-disubstituted 1,2,3-triazoles in high isolated yields.

Graphical abstract: New organometallic Schiff-base copper complexes as efficient “click” reaction precatalysts
Paper

Highly selective colorimetric and fluorescent BODIPY dyes for sensing of cysteine and/or homocysteine

Selective “naked eye” and fluorescent sensing of biothiols by visible-light excitable α- and β-formyl BODIPYs 1 and 3 was developed.

Graphical abstract: Highly selective colorimetric and fluorescent BODIPY dyes for sensing of cysteine and/or homocysteine
44 items

About this collection

This themed issue of the New Journal of Chemistry reports recent advances in the chemistry of nitrogen ligands, including organic, coordination, metal-organic and bioinorganic chemistry, and also materials science and catalysis.

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