Dataset Information

No Switching Cooperativity between Coordinated Azo Ligands on Complexes Having {M^II(phosphane-κ²P)}²⁺ (M = Pd, Pt) Scaffolds.

ABSTRACT: A series of square-planar palladium and platinum compounds with cis-blocking phosphanes and terminal azobenzene ligands [M(dppp)(azo)₂](OTf)₂ (azo = CN(C₆H₄)-N═N-(C₆H₄)CN (iso-cyano), CN(C₆H₄)-N═N-(C₆H₅) (iso-Ph)) and [{M₂(tpbz)}(azo)₄](OTf)₄ (azo = CN(C₆H₄)-N═N-(C₆H₅) (iso-Ph)) have been synthesized and fully characterized. Similarly to the uncoordinated ligands, the new coordination compounds have shown to be photochemically active with respect to their trans-to-cis isomerization process. Their cis-to-trans back spontaneous reaction have been studied as a function of solvent, temperature and pressure and the corresponding activation parameters determined in order to investigate the mechanism of these transformations. The results obtained are indicative of the operation of a rotational mechanism with no cooperativity between the azo ligands attached to the same metal. Density functional theory calculations have been carried out in order to estimate the relative energies of the different photoisomers for the theoretical interpretation of the experimental data.

SUBMITTER: Raich Panisello O

PROVIDER: S-EPMC11372757 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

No Switching Cooperativity between Coordinated Azo Ligands on Complexes Having {MII(phosphane-κ2P)}2+ (M = Pd, Pt) Scaffolds.

Raïch Panisello Ot O Jover Jesús J Puigjaner Cristina C Ferrer Montserrat M Martínez Manuel M

Inorganic chemistry 20240821 35

A series of square-planar palladium and platinum compounds with cis-blocking phosphanes and terminal azobenzene ligands [M(dppp)(azo)2](OTf)2 (azo = CN(C6H4)-N═N-(C6H4)CN (iso-cyano), CN(C6H4)-N═N-(C6H5) (iso-Ph)) and [{M2(tpbz)}(azo)4](OTf)4 (azo = CN(C6H4)-N═N-(C6H5) (iso-Ph)) have ...[more]

PMID: 39167678

Similar Datasets

Project description:Successful periodontal repair and regeneration requires the coordinated responses from soft and hard tissues as well as the soft tissue-to-bone interfaces. Inspired by the hierarchical structure of native periodontal tissues, tissue engineering technology provides unique opportunities to coordinate multiple cell types into scaffolds that mimic the natural periodontal structure in vitro. In this study, we designed and fabricated highly ordered multicompartmental scaffolds by melt electrowriting, an advanced 3-dimensional (3D) printing technique. This strategy attempted to mimic the characteristic periodontal microenvironment through multicompartmental constructs comprising 3 tissue-specific regions: 1) a bone compartment with dense mesh structure, 2) a ligament compartment mimicking the highly aligned periodontal ligaments (PDLs), and 3) a transition region that bridges the bone and ligament, a critical feature that differentiates this system from mono- or bicompartmental alternatives. The multicompartmental constructs successfully achieved coordinated proliferation and differentiation of multiple cell types in vitro within short time, including both ligamentous- and bone-derived cells. Long-term 3D coculture of primary human osteoblasts and PDL fibroblasts led to a mineral gradient from calcified to uncalcified regions with PDL-like insertions within the transition region, an effect that is challenging to achieve with mono- or bicompartmental platforms. This process effectively recapitulates the key feature of interfacial tissues in periodontium. Collectively, this tissue-engineered approach offers a fundament for engineering periodontal tissue constructs with characteristic 3D microenvironments similar to native tissues. This multicompartmental 3D printing approach is also highly compatible with the design of next-generation scaffolds, with both highly adjustable compartmentalization properties and patient-specific shapes, for multitissue engineering in complex periodontal defects.

Dataset Information

No Switching Cooperativity between Coordinated Azo Ligands on Complexes Having {M^II(phosphane-κ²P)}²⁺ (M = Pd, Pt) Scaffolds.

Publications

No Switching Cooperativity between Coordinated Azo Ligands on Complexes Having {M<sup>II</sup>(phosphane-κ<sup>2</sup><i>P</i>)}<sup>2+</sup> (M = Pd, Pt) Scaffolds.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets