An unprecedented 2D copper(<scp>i</scp>)–cyanide complex with 20-membered metal rings: the effect of the co-ligand 4,5-diazafluoren-9-one

Ma, Feng; Gao, Su-Mei; Wu, Mengmeng; Zhao, Jiong-Peng; Liu, Fuchen; Nai-xuan, LI

doi:10.1039/c5dt04771d

Cited by 4 publications

(2 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition to the synthetic benefits, the short cyanide spacers are capable of providing efficient exchange coupling between the magnetic units that have substantially stimulated the area of spin-crossover and ferromagnetic materials. ,− From the photophysical viewpoint, cyano ligands extend the conjugation of the molecular system that promotes electronic communication and intramolecular charge/energy transfer between the connected components, opening a pathway to metal-based materials with attractive optical characteristics. − For instance, the d 10 cyanometallates have been involved in the fabrication of birefringent crystals, luminescent compounds, − and stimuli-responsive materials, which exhibit a detectable alteration of light-emissive properties upon interaction with a variety of analytes. − …”

Section: Introductionmentioning

confidence: 99%

Cyclometalated Platinum(II) Cyanometallates: Luminescent Blocks for Coordination Self-Assembly

et al. 2017

View full text Add to dashboard Cite

A family of cyanide-bridged heterometallic aggregates has been constructed of the chromophoric cycloplatinated metalloligands and coordinatively unsaturated d fragments {M(PPh)}. The tetranuclear complexes of general composition [Pt(C^N)(CN)M(PPh)] [C^N = ppy, M = Cu (1), Ag (2); C^N = tolpy (Htolpy = 2-(4-tolyl)-pyridine), M = Cu (4), Ag (5); C^N = Fppy (HFppy = 2-(4, 6-difluorophenyl)-pyridine), M = Cu (7), Ag (8)] demonstrate a squarelike arrangement of the molecular frameworks, which is achieved due to favorable coordination geometries of the bridging ligands and the metal ions. Variation of the amount of the ancillary phosphine (for M = Ag) afforded compounds [Pt(C^N)(CN)Ag(PPh)] (C^N = ppy, 3; C^N = tolpy, 6); for the latter one an alternative cluster topology, stabilized by the Pt-Ag metallophilic and η-C(C^N)-Ag bonding, was observed. The solid-state structures of all of the title species 1-8 were determined crystallographically. The complexes exhibit moderately strong room-temperature phosphorescence as crystalline powders (Φ = 16-34%, λ = 470-511 nm). The luminescence studies and time-dependent density functional theory computational analysis indicate that the photophysical behavior is dominated by the π-π* electronic transitions localized on the cyclometalated fragment and mixed with MLCT contribution, while the d-phosphine motifs have a negligible contribution into the frontier orbitals and therefore show a little influence on the emission performance of the described compounds.

show abstract

Section: Introductionmentioning

confidence: 99%

Cyclometalated Platinum(II) Cyanometallates: Luminescent Blocks for Coordination Self-Assembly

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Furthermore, dicyanometallates [M(CN) 2 ] − of coinage metal ions (M = Au, Ag, Cu) and tetracyanoplatinate [Pt(CN) 4 ] 2– have been actively employed for the development of birefringent , and photoluminescent − homo- and heterobimetallic materials, including sensory systems with distinct optical response to some volatile donor molecules. − …”

Section: Introductionmentioning

confidence: 99%

Supramolecular Construction of Cyanide-Bridged Re^I Diimine Multichromophores

et al. 2019

View full text Add to dashboard Cite

The reactions of labile [Re(diimine)-(CO) 3 (H 2 O)] + precursors (diimine = 2,2′-bipyridine, bpy; 1,10-phenanthroline, phen) with dicyanoargentate anion produce the dirhenium cyanide-bridged compounds [{Re-(diimine)(CO) 3 } 2 CN)] + (1 and 2). Substitution of the axial carbonyl ligands in 2 for triphenylphosphine gives the derivative [{Re(phen)(CO) 2 (PPh 3 )} 2 CN] + (3), while the employment of a neutral metalloligand [Au(PPh 3 )(CN)] affords heterobimetallic complex [{Re(phen)(CO) 3 }NCAu-(PPh 3 )] + (4). Furthermore, the utilization of [Au(CN) 2 ] − , [Pt(CN) 4 ] 2− , and [Fe(CN) 6 ] 4−/3− cyanometallates leads to the higher nuclearity aggregates [{Re(diimine)-(CO) 3 NC} x M] m+ (M = Au, x = 2, 5 and 6; Pt, x = 4, 7 and 8; Fe, x = 6, 9 and 10). All novel compounds were characterized crystallographically. Assemblies 1−8 are phosphorescent both in solution and in the solid state; according to the DFT analysis, the optical properties are mainly associated with charge transfer from Re tricarbonyl motif to the diimine fragment. The energy of this process can be substantially modified by the properties of the ancillary ligands that allows to attain near-IR emission for 3 (λ em = 737 nm in CH 2 Cl 2 ). The Re−Fe II/III complexes 9 and 10 are not luminescent but exhibit low energy absorptions, reaching 846 nm (10) due to Re I → Fe III transition.

show abstract

RETRACTED: DFT challenge of intermetallic interactions: From metallophilicity and metallaromaticity to sextuple bonding

Tsipis

2017

Coordination Chemistry Reviews

View full text Add to dashboard Cite

An unprecedented 2D copper(i)–cyanide complex with 20-membered metal rings: the effect of the co-ligand 4,5-diazafluoren-9-one

Cited by 4 publications

References 44 publications

Cyclometalated Platinum(II) Cyanometallates: Luminescent Blocks for Coordination Self-Assembly

Cyclometalated Platinum(II) Cyanometallates: Luminescent Blocks for Coordination Self-Assembly

Supramolecular Construction of Cyanide-Bridged Re^I Diimine Multichromophores

RETRACTED: DFT challenge of intermetallic interactions: From metallophilicity and metallaromaticity to sextuple bonding

Contact Info

Product

Resources

About

An unprecedented 2D copper(i)–cyanide complex with 20-membered metal rings: the effect of the co-ligand 4,5-diazafluoren-9-one

Cited by 4 publications

References 44 publications

Cyclometalated Platinum(II) Cyanometallates: Luminescent Blocks for Coordination Self-Assembly

Cyclometalated Platinum(II) Cyanometallates: Luminescent Blocks for Coordination Self-Assembly

Supramolecular Construction of Cyanide-Bridged ReI Diimine Multichromophores

RETRACTED: DFT challenge of intermetallic interactions: From metallophilicity and metallaromaticity to sextuple bonding

Contact Info

Product

Resources

About

Supramolecular Construction of Cyanide-Bridged Re^I Diimine Multichromophores