Comparative analysis of self-aggregation of liquid crystalline Pt(II) complexes in solution and in neat films

Suleymanova, Alfiya F.; Yakovleva, Yulia A.; Eltsov, Oleg S.; Лантушенко, А. О.; Evstigneev, Maxim P.; Donnio, Bertrand; Heinrich, Benoît; Kozhevnikov, Valery N.

doi:10.1016/j.jorganchem.2021.121750

Cited by 4 publications

(2 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore the presence of a second doublet in the Pt4f of multilayer and NPs samples (Figure 4) seems to be due to inter‐chain interactions arising between metal centers and adjacent acetylene moieties and aromatic rings. This behavior in the self‐assembling organization of dinuclear Pt(II)‐based complexes and organometallic polyynes was already observed and reported in previous works [40] . Conversely, the Pt4f signal of SAM shows a single spin‐orbit pair, confirming the formation of a monolayer without inter‐chain interactions, [19] probably due to the larger interchain distances and/or to a different molecular packing that does not allow Pt‐phenyl ring communication.…”

Section: Resultssupporting

confidence: 83%

“…This behavior in the self-assembling organization of dinuclear Pt(II)-based complexes and organometallic polyynes was already observed and reported in previous works. [40] Conversely, the Pt4f signal of SAM shows a single spin-orbit pair, confirming the formation of a monolayer without inter-chain interactions, [19] probably due to the larger interchain distances and/or to a different molecular packing that does not allow Pt-phenyl ring communication. Generally speaking, Pt4f and S2p spectra collected on SAM suggest the presence of a molecular orientation, as already observed in thin films of Pt-DEBP and Pd-DEBP deposited onto Au/Si(111) substrates and investigated by angular dependent NEXAFS spectroscopy; [41] this aspect will be subject to a future investigation.…”

Section: Chemistryselectmentioning

confidence: 90%

See 1 more Smart Citation

Noble Metal Nanoparticles Networks Stabilized by Rod‐Like Organometallic Bifunctional Thiols

et al. 2023

View full text Add to dashboard Cite

Rod‐like organometallic dithiol containing square‐planar Pt(II) centers, i. e., trans,trans‐[(H3COCS)Pt(PBu3)2(C≡C−C6H4−C6H4−C≡C)(PBu3)2Pt(SCOCH3)] was used as bifunctional stabilizing agent for the synthesis of Pd‐, Au‐, and AgNPs (MNPs). All the MNPs showed diameters of about 4 nm, which can be controlled by carefully modulating the synthesis parameters. Covalent MNPs stabilization occurred through a single S bridge between Pt(II) and the noble metal nanocluster surfaces, leading to a network of regularly spaced NPs with the formation of dyads, as supported by SR‐XPS data and by TEM imaging analysis. The chemical nature of NPs systems was also confirmed by EDS and NMR. Comparison between SR‐XPS data of MNPs and self‐assembled monolayers and multilayers of pristine rod‐like dithiols deposited onto polycrystalline gold surfaces revealed an electronic interaction between Pt(II) centers and biphenyl moieties of adjacent ligands, stabilizing the organic structure of the network. The possibility to obtain networks of regularly spaced MNPs opens outstanding perspectives in optoelectronics.

show abstract

Section: Resultssupporting

confidence: 83%

Section: Chemistryselectmentioning

confidence: 90%

Noble Metal Nanoparticles Networks Stabilized by Rod‐Like Organometallic Bifunctional Thiols

et al. 2023

View full text Add to dashboard Cite

show abstract

Acetonyl C^N^N platinum(II) complexes of arylbipyridines

Abramov,

Tokhtueva,

Melekhin

et al. 2024

Magnetic Reson in Chemistry

View full text Add to dashboard Cite

This paper presents the first example of the formation of acetonyl tridentate CˆNˆN complexes of arylbipyridines in the reaction of chloroplatinum complexes with acetone in the presence of alkali. The chemical structure of obtained substances was established by means of 1H,13C NMR, COSY, HSQC, and HMBC techniques. The attribution of all proton and carbon signals in NMR spectra was performed using 1D and 2D NMR experiments for the synthesized acetonyl cycloplatinated complexes. A comparative analysis of the values of the C‐Pt spin‐spin coupling constants of the same order was carried out, which showed a significant difference in bond lengths and valence angles inthe cyclic fragments of the arylbipyridine ligand.

show abstract

The arylbipyridine platinum (II) complex increases the level of ROS and induces lipid peroxidation in glioblastoma cells

Tokhtueva,

Melekhin,

Abramov

et al. 2024

Biometals

View full text Add to dashboard Cite

Comparative analysis of self-aggregation of liquid crystalline Pt(II) complexes in solution and in neat films

Cited by 4 publications

References 42 publications

Noble Metal Nanoparticles Networks Stabilized by Rod‐Like Organometallic Bifunctional Thiols

Noble Metal Nanoparticles Networks Stabilized by Rod‐Like Organometallic Bifunctional Thiols

Acetonyl C^N^N platinum(II) complexes of arylbipyridines

The arylbipyridine platinum (II) complex increases the level of ROS and induces lipid peroxidation in glioblastoma cells

Contact Info

Product

Resources

About