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Themed collection Nitrogen Ligands

46 items
Editorial

Nitrogen ligands

This special web collection of Dalton Transactions focuses on nitrogen ligands, as a tribute to the 150th anniversary of the development of the periodic table.

Graphical abstract: Nitrogen ligands
From the themed collection: Nitrogen Ligands
Perspective

Nitrogen-doped metal-free carbon catalysts for (electro)chemical CO2 conversion and valorisation

This review focuses on the recent developments made in the fabrication of N-doped carbon materials for enhanced CO2 conversion and electrochemical reduction into high-value-added products.

Graphical abstract: Nitrogen-doped metal-free carbon catalysts for (electro)chemical CO2 conversion and valorisation
From the themed collection: 2019 Frontier and Perspective articles
Perspective

2,2′-Dipyridylamines: more than just sister members of the bipyridine family. Applications and achievements in homogeneous catalysis and photoluminescent materials

2,2′-Dipyridylamine derivatives: Discreet members of the polydentate nitrogen ligand familly with underestimated potential.

Graphical abstract: 2,2′-Dipyridylamines: more than just sister members of the bipyridine family. Applications and achievements in homogeneous catalysis and photoluminescent materials
From the themed collection: 2019 Frontier and Perspective articles
Perspective

Group 11 tris(pyrazolyl)methane complexes: structural features and catalytic applications

Tris(pyrazolyl)methane ligands (Tpmx) have been for years a step behind their highly popular boron-anionic analogues, the tris(pyrazolyl)borate ligands (Tpx).

Graphical abstract: Group 11 tris(pyrazolyl)methane complexes: structural features and catalytic applications
From the themed collection: 2019 Frontier and Perspective articles
Perspective

The chemistry of guanidinate complexes of the platinum group metals

In the present Perspective article, synthetic and structural aspects, reactivity studies and applications of platinum group metal complexes containing guanidinate ligands are discussed.

Graphical abstract: The chemistry of guanidinate complexes of the platinum group metals
Perspective

Chelate rings of different sizes with non-innocent ligands

Redox-active unsaturated chelate ligands can be realised with different ring sizes of the resulting metallacycles.

Graphical abstract: Chelate rings of different sizes with non-innocent ligands
From the themed collection: 2019 Frontier and Perspective articles
Perspective

Ethylene polymerization of nickel catalysts with α-diimine ligands: factors controlling the structure of active species and polymer properties

In the present perspective, the recent advances of α-diimine nickel based catalysts of ethylene polymerization, focusing on the relationships between catalyst structures and their catalytic properties are discussed.

Graphical abstract: Ethylene polymerization of nickel catalysts with α-diimine ligands: factors controlling the structure of active species and polymer properties
From the themed collection: 2019 Frontier and Perspective articles
Perspective

Chemistry and applications of cyanoximes and their metal complexes

During the past three decades, considerable research effort has been dedicated to a new class of organic ligands – cyanoximes – which have the general formula NC–C([double bond, length as m-dash]NOH)-R, where R is an electron-withdrawing group. In total, 44 different cyanoximes were prepared and characterized thus far.

Graphical abstract: Chemistry and applications of cyanoximes and their metal complexes
From the themed collection: 2019 Frontier and Perspective articles
Perspective

Phosphorus dendrimers functionalised with nitrogen ligands, for catalysis and biology

Phosphorus dendrimers (dendrimers having one phosphorus atom at each branching point) possess versatile properties, depending on the type of their terminal functions.

Graphical abstract: Phosphorus dendrimers functionalised with nitrogen ligands, for catalysis and biology
From the themed collection: 2019 Frontier and Perspective articles
Communication

Heterobimetallic Ba/Li and Ca/Li amides and diphenylmethanide

Rare examples of stable heterobimetallic Ca/Li and Ba/Li amido polymeric species, as well as an ate Ca/Li diphenylmethanide compound stable in ethers, have been structurally characterised. Intra- and intermolecular metal⋯H–Si interactions are shown to play a key role.

Graphical abstract: Heterobimetallic Ba/Li and Ca/Li amides and diphenylmethanide
From the themed collection: Nitrogen Ligands
Communication

Effect of substituents on molybdenum triiodide complexes bearing PNP-type pincer ligands toward catalytic nitrogen fixation

Molybdenum triiodide complexes bearing phenyl and ferrocenyl substituted PNP-type pincer ligands acted as more effective catalysts toward ammonia production under ambient reaction conditions.

Graphical abstract: Effect of substituents on molybdenum triiodide complexes bearing PNP-type pincer ligands toward catalytic nitrogen fixation
From the themed collection: Nitrogen Ligands
Paper

Synthesis, characterization and catalytic activity of novel ruthenium complexes bearing NNN click based ligands

New ruthenium complexes based on click-synthesized triazole-containing NNN ligands were successfully used for the hydrogenation of aldehydes and ketones.

Graphical abstract: Synthesis, characterization and catalytic activity of novel ruthenium complexes bearing NNN click based ligands
From the themed collection: Nitrogen Ligands
Paper

β-Arylethynyl substituted silver corrole complexes

The introduction of β-ethynyl groups strongly influences the optical properties of silver 3,17- triarylcorrole complexes.

Graphical abstract: β-Arylethynyl substituted silver corrole complexes
From the themed collection: Nitrogen Ligands
Paper

Cu(II) complexes of N-rich aroylhydrazone: magnetism and catalytic activity towards microwave-assisted oxidation of xylenes

Three new polynuclear Cu(II) complexes derived from the new aroylhydrazone N′-(di(pyridin-2-yl)methylene)pyrazine-2-carbohydrazide (HL) have been screened towards the oxidation of xylene isomers.

Graphical abstract: Cu(ii) complexes of N-rich aroylhydrazone: magnetism and catalytic activity towards microwave-assisted oxidation of xylenes
From the themed collection: Nitrogen Ligands
Paper

Porous organic polymers based on cobalt corroles for carbon monoxide binding

Porous organic polymers (POPs) functionalized by cobalt corroles are designed for selective carbon monoxide capture applications.

Graphical abstract: Porous organic polymers based on cobalt corroles for carbon monoxide binding
From the themed collection: Nitrogen Ligands
Paper

Light-stable polypyridine silver(I) complexes of 1,3,5-triaza-7-phosphaadamantane (PTA) and 1,3,5-triaza-7-phosphaadamantane-7-sulfide (PTA[double bond, length as m-dash]S): significant antiproliferative activity of representative examples in aqueous media

A series of novel silver polypyridine complexes containing PTA or PTA[double bond, length as m-dash]S have been synthesized and fully characterized. Representative light-stable and water-soluble complexes were evaluated for their cytotoxic and the antitumor activity.

Graphical abstract: Light-stable polypyridine silver(i) complexes of 1,3,5-triaza-7-phosphaadamantane (PTA) and 1,3,5-triaza-7-phosphaadamantane-7-sulfide (PTA [[double bond, length as m-dash]] S): significant antiproliferative activity of representative examples in aqueous media
From the themed collection: Nitrogen Ligands
Open Access Paper

Resolution of minor size differences in a family of heteroleptic coordination cages by trapped ion mobility ESI-MS

Trapped ion mobility mass spectrometry shows its power as analytical tool in supramolecular chemistry by discriminating ten heteroleptic coordination cage derivatives, only differing slightly in size.

Graphical abstract: Resolution of minor size differences in a family of heteroleptic coordination cages by trapped ion mobility ESI-MS
From the themed collection: Nitrogen Ligands
Paper

Iron(II) complexes with diazinyl-NHC ligands: impact of π-deficiency of the azine core on photophysical properties

Boosting iron(II) complex excited-state lifetime by combining pyrazine and benzimidazolylidene NHC ligands.

Graphical abstract: Iron(ii) complexes with diazinyl-NHC ligands: impact of π-deficiency of the azine core on photophysical properties
From the themed collection: Nitrogen Ligands
Open Access Paper

Structural and magnetic characterization of Ni(II), Co(II), and Fe(II) binuclear complexes on a bis(pyridyl-triazolyl)alkane basis

Reactions of bis[5-(2-pyridyl)-1,2,4-triazol-3-yl]alkanes (alkane spacers –(CH2)n–: n = 2 in L2, n = 3 in L3, −n = 4 in L4) with Ni, Co, Fe salts resulted in the preparation of five series of mononuclear and binuclear complexes.

Graphical abstract: Structural and magnetic characterization of Ni(ii), Co(ii), and Fe(ii) binuclear complexes on a bis(pyridyl-triazolyl)alkane basis
From the themed collection: Nitrogen Ligands
Paper

Copper(II)-mediated base pairing involving the artificial nucleobase 3H-imidazo[4,5-f]quinolin-5-ol

A highly stabilizing Cu(II)-mediated base pair is introduced into DNA using a large artificial nucleobase.

Graphical abstract: Copper(ii)-mediated base pairing involving the artificial nucleobase 3H-imidazo[4,5-f]quinolin-5-ol
From the themed collection: Nitrogen Ligands
Paper

The first water-soluble polynuclear metallamacrocyclic Sr(II)–Cu(II) complex based on simple glycinehydroximate ligands

Experimental and theoretical studies of a new strontium metallacrown reveal the specific central ion influence on molecular and electronic structures of metallamacrocycles.

Graphical abstract: The first water-soluble polynuclear metallamacrocyclic Sr(ii)–Cu(ii) complex based on simple glycinehydroximate ligands
From the themed collection: Nitrogen Ligands
Paper

Novel dioxolene nickel complexes with sterically hindered diazabutadienes. Coupling of aza-ligands coordinated to nickel

Coupling of nickel complexes containing N,N′-disubstituted-2,3-dimethyl-1,4-diazabutadiene-1,3 occurs through the methyl group of the latter in nonpolar media in the presence of free o-quinone.

Graphical abstract: Novel dioxolene nickel complexes with sterically hindered diazabutadienes. Coupling of aza-ligands coordinated to nickel
From the themed collection: Nitrogen Ligands
Paper

Synthesis, characterization, photoluminescence, anti-tumor activity, DFT calculations and molecular docking with proteins of zinc(II) halogen substituted terpyridine compounds

Study on the synthesis, characterization, photoluminescence and anti-tumor activity of a series of zinc(II) halogen substituted terpyridine complexes.

Graphical abstract: Synthesis, characterization, photoluminescence, anti-tumor activity, DFT calculations and molecular docking with proteins of zinc(ii) halogen substituted terpyridine compounds
From the themed collection: Nitrogen Ligands
Open Access Paper

Novel latonduine derived proligands and their copper(II) complexes show cytotoxicity in the nanomolar range in human colon adenocarcinoma cells and in vitro cancer selectivity

The copper(II) complexes with latonduine derivatives are superior to those with isomeric paullone modified ligands.

Graphical abstract: Novel latonduine derived proligands and their copper(ii) complexes show cytotoxicity in the nanomolar range in human colon adenocarcinoma cells and in vitro cancer selectivity
From the themed collection: Nitrogen Ligands
Paper

Synthesis and photophysical properties of novel pyrene–metalloporphyrin dendritic systems

Energy transfer studies were performed on a series of new pyrene–metalloporphyrin (Zn, Cu, Mg and Mn) dendritic constructs.

Graphical abstract: Synthesis and photophysical properties of novel pyrene–metalloporphyrin dendritic systems
From the themed collection: Celebrating recent chemical science in Mexico
Paper

Barium complexes with crown-ether-functionalised amidinate and iminoanilide ligands for the hydrophosphination of vinylarenes

Two barium-amide complexes bearing crown-ether-functionalised amidinate and iminoanilide ligands that act as competent precatalysts for the intermolecular hydrophosphination of vinylarenes are presented.

Graphical abstract: Barium complexes with crown-ether-functionalised amidinate and iminoanilide ligands for the hydrophosphination of vinylarenes
From the themed collection: Nitrogen Ligands
Paper

Chirality transfer between hexaazamacrocycles in heterodinuclear rare earth complexes

Within heterodinuclear Ln(III) complexes, the chirality of the diaminocyclohexane fragment dictates the helicity of the chiral hexaazamacrocycle which is in turn transferred into the helicity of the achiral hexaazamacrocyle.

Graphical abstract: Chirality transfer between hexaazamacrocycles in heterodinuclear rare earth complexes
From the themed collection: Nitrogen Ligands
Paper

endo- versus exo-Cyclic coordination in copper complexes with methylthiazolylcarboxylate tacn derivatives

We explore the impact of methylthiazolylcarboxylate pendant arms on the endo-or exo-cyclic coordination of Cu(II) with tacn derivatives.

Graphical abstract: endo- versus exo-Cyclic coordination in copper complexes with methylthiazolylcarboxylate tacn derivatives
From the themed collection: Nitrogen Ligands
Paper

New ternary iron(III) aminobisphenolate hydroxyquinoline complexes as potential therapeutic agents

Fe(III)-Aminobisphenolate hydroxyquinoline complexes are active anticancer drug candidates in the low micromolar range, displaying apoptosis as the mode of cell death.

Graphical abstract: New ternary iron(iii) aminobisphenolate hydroxyquinoline complexes as potential therapeutic agents
From the themed collection: Nitrogen Ligands
Paper

Synthesis and structural characterization of homochiral coordination polymers with imidazole-based monocarboxylate ligands

Two-dimensional homochiral coordination polymers of sodium, silver, copper and zinc were obtained with 2alkyl,2-(1H-imidazol-1-yl)acetate anions as bridging ligands.

Graphical abstract: Synthesis and structural characterization of homochiral coordination polymers with imidazole-based monocarboxylate ligands
From the themed collection: Nitrogen Ligands
Paper

Self-complementary and narcissistic self-sorting of bis-acridinium tweezers

A 1 : 1 mixture of two self-complementary tweezers incorporating different spacers led to a narcissistic self-sorting process under thermodynamic control.

Graphical abstract: Self-complementary and narcissistic self-sorting of bis-acridinium tweezers
From the themed collection: Nitrogen Ligands
Paper

Assembly structures and electronic properties of truxene–porphyrin compounds studied by STM/STS

Long-ranged lamellar assembly structures and metalation-related electronic properties of truxene–porphyrin compounds were studied by the STM/STS technique.

Graphical abstract: Assembly structures and electronic properties of truxene–porphyrin compounds studied by STM/STS
From the themed collection: Nitrogen Ligands
Paper

rtl-M-MOFs (M = Cu, Zn) with a T-shaped bifunctional pyrazole-isophthalate ligand showing flexibility and S-shaped Type F-IV sorption isotherms with high saturation uptakes for M = Cu

The flexible, activated MOF rtl-[Cu(HIsa-az-dmpz)] undergoes a reversible phase change into a closed form with gate opening at cryogenic temperatures for N2 and CO2.

Graphical abstract: rtl-M-MOFs (M = Cu, Zn) with a T-shaped bifunctional pyrazole-isophthalate ligand showing flexibility and S-shaped Type F-IV sorption isotherms with high saturation uptakes for M = Cu
From the themed collection: Nitrogen Ligands
Open Access Paper

Mono- and bimetallic amidinate samarium complexes – synthesis, structure, and hydroamination catalysis

Two similar amidinate samarium catalysts were synthesized in order to investigate the difference between a monometallic and a bimetallic system in the catalytic hydroamination cyclization reaction.

Graphical abstract: Mono- and bimetallic amidinate samarium complexes – synthesis, structure, and hydroamination catalysis
From the themed collection: Nitrogen Ligands
Paper

A new, simple, and efficient strategy for the preparation of active antifungal biodegradable materials via ring-opening polymerization of L-lactide with zinc aryloxides

Zinc aryloxides supported by phenylphenolato ligands were used for the development of active antifungal biodegradable materials via ring-opening polymerization of L-lactide.

Graphical abstract: A new, simple, and efficient strategy for the preparation of active antifungal biodegradable materials via ring-opening polymerization of l-lactide with zinc aryloxides
From the themed collection: Nitrogen Ligands
Paper

gem-Dimethyl-substituted bis(imino)dihydroquinolines as thermally stable supports for highly active cobalt catalysts that produce linear PE waxes

Linear polyethylene waxes with vinyl content can be generated using the depicted N,N,N′-Co catalyst at an industrially relevant operating temperature of 70 °C.

Graphical abstract: gem-Dimethyl-substituted bis(imino)dihydroquinolines as thermally stable supports for highly active cobalt catalysts that produce linear PE waxes
From the themed collection: Nitrogen Ligands
Paper

Synthesis, structures and luminescence of multinuclear silver(I) pyrazolate adducts with 1,10-phenanthroline derivatives

Silver(I) pyrazolate adducts with phenanthroline, neocuproine and bathocuproine exhibit phosphorescence in the solid state. Their photophysical behavior was interpreted using TD-DFT calculations.

Graphical abstract: Synthesis, structures and luminescence of multinuclear silver(i) pyrazolate adducts with 1,10-phenanthroline derivatives
From the themed collection: Nitrogen Ligands
Paper

Alternative (κ1-N:η6-arene vs. κ2-N,N) coordination of a sterically demanding amidinate ligand: are size and electronic structure of the Ln ion decisive factors?

Both ion size and electronic structure of Ln(II/III) ion are decisive in the implementation of either κ1-amido : η6-arene or κ2-N,N′ type of coordination of sterically demanding amidinate ligands.

Graphical abstract: Alternative (κ1-N:η6-arene vs. κ2-N,N) coordination of a sterically demanding amidinate ligand: are size and electronic structure of the Ln ion decisive factors?
From the themed collection: Nitrogen Ligands
Paper

Molybdenum(II) complexes with p-substituted BIAN ligands: synthesis, characterization, biological activity and computational study

These complexes crystallize as the less common axial isomer and reach EC50 < 1.8 μM against HeLa cell lines.

Graphical abstract: Molybdenum(ii) complexes with p-substituted BIAN ligands: synthesis, characterization, biological activity and computational study
From the themed collection: Nitrogen Ligands
Paper

Copper-phthalocyanine coordination polymer as a reusable catechol oxidase biomimetic catalyst

We report the synthesis, characterization and catalytic activity of a new phthalocyanine coordination polymer (Cu4CuPcSPy).

Graphical abstract: Copper-phthalocyanine coordination polymer as a reusable catechol oxidase biomimetic catalyst
From the themed collection: Nitrogen Ligands
Open Access Paper

Stereoisomers and functional groups in oxidorhenium(V) complexes: effects on catalytic activity

Stereo-control and effects on the catalytic activity of oxidorhenium(V) complexes in epoxidation and perchlorate reduction catalysis.

Graphical abstract: Stereoisomers and functional groups in oxidorhenium(v) complexes: effects on catalytic activity
From the themed collection: Nitrogen Ligands
Paper

Potassium complexes containing bidentate pyrrole ligands: synthesis, structures, and catalytic activity for the cyclotrimerization of isocyanates

Potassium complexes containing 2-(t-butyliminomethyl)pyrrole and 2-(t-butylaminomethyl)pyrrole revealed intriguing bonding modes, respectively, which proved to be an effective class of catalysts for cyclotrimerization of isocyanate under mild conditions.

Graphical abstract: Potassium complexes containing bidentate pyrrole ligands: synthesis, structures, and catalytic activity for the cyclotrimerization of isocyanates
From the themed collection: Nitrogen Ligands
Paper

Hydrophobicity may enhance membrane affinity and anti-cancer effects of Schiff base vanadium(V) catecholate complexes

Hydrophobicity may increase the hydrolytic stability of vanadium(V) catecholate complexes enabling rapid cellular uptake of the intact complex exhibiting potent anti-cancer activity.

Graphical abstract: Hydrophobicity may enhance membrane affinity and anti-cancer effects of Schiff base vanadium(v) catecholate complexes
From the themed collection: Nitrogen Ligands
Paper

Pentamethylcyclopentadienyl ruthenium “pogo stick” complexes with nitrogen donor ligands

The preparation and reactivity of an imidazolin-2-iminato ruthenium complex with a rare one-legged piano-stool (“pogo stick”) geometry is reported.

Graphical abstract: Pentamethylcyclopentadienyl ruthenium “pogo stick” complexes with nitrogen donor ligands
From the themed collection: Nitrogen Ligands
Paper

Directing self-assembly in solution towards improved cooperativity in Fe(III) complexes with amphiphilic tridentate ligands

Particles with different sizes promote spin crossover at 220 K and a 10 K hysteresis.

Graphical abstract: Directing self-assembly in solution towards improved cooperativity in Fe(iii) complexes with amphiphilic tridentate ligands
From the themed collection: Nitrogen Ligands
Paper

Plastomeric-like polyethylenes achievable using thermally robust N,N′-nickel catalysts appended with electron withdrawing difluorobenzhydryl and nitro groups

High molecular weight plastomeric polyethylene can be generated using the title N,N′ nickel(II) halide precatalysts activated with either MAO or EASC; notably these catalysts operate effectively at an industrially relevant 80 °C.

Graphical abstract: Plastomeric-like polyethylenes achievable using thermally robust N,N′-nickel catalysts appended with electron withdrawing difluorobenzhydryl and nitro groups
From the themed collection: Nitrogen Ligands
46 items

About this collection

This themed collection guest-edited by Armando Pombeiro, is centred on the various roles of nitrogen ligands in modern chemistry, and pays tribute to the 150th anniversary of the development of the periodic table. This collection of over 40 reports, demonstrates the versatility of nitrogen ligands and their complexes across a range of chemical specialisms. As evidenced by the number and diversity of the contributions to this collection, nitrogen ligand chemistry continues to gather great interest and there is vast and exciting scope for the future use of nitrogen ligands across a wide diversity of fields.

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