Synthesis and Characterization of Heterofluorenes with Five-coordinated Group 13 Elements

Matsumoto, Takuya; Takamine, Hirofumi; Tanaka, Kazuo; Chujo, Yoshiki

doi:10.1246/cl.150795

Cited by 15 publications

(6 citation statements)

References 23 publications

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“…These compounds were studied as photoluminescence emitters. UV‐Vis spectra provided absorptions in the range of 280–320 nm, similarly to their Ar NCN analogues . The photoluminescence spectra provided the peaks of photoluminescence emission bands ranging from 320–371 nm that belong to the fluorescence.…”

Section: Group 13 Complexesmentioning

confidence: 98%

“…Analogous Ar NCN MCl 2 (M=Al, Ga) compounds were used for the preparation of metallafluorenes Ar NCN M(C 12 H 8 ) and dibenzogallepin Ar NCN Ga(C 14 H 10 ), that were studied as photoluminescence emitters (Figure ) . The UV‐Vis and photoluminescence spectra provided absorptions at 282 nm and 332 nm, respectively, that could be assigned to π→π* transitions of the fluorene moieties.…”

Section: Group 13 Complexesmentioning

confidence: 99%

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(N),C,N‐Coordinated Heavier Group 13–15 Compounds: Synthesis, Structure and Applications

et al. 2020

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The aim of this review is to summarize recent achievements in the field of (N),C,N‐coordinated group 13–15 compounds not only regarding their synthesis and structure, but mainly focusing on their potential applications. Relevant compounds contain various types of N‐coordinating ligands built up on an ortho‐(di)substituted phenyl platform. Thus, group 13 and 14 derivatives were used as single‐source precursors for the deposition of semiconducting thin films, as building blocks for the preparation of high‐molecular polymers with remarkable optical and chemical properties or as compounds with interesting reactivity in hydrometallation processes. Group 15 derivatives function as catalysts in the Mannich reaction, in the allylation of aldehydes or activation of CO2. They were used as transmetallation reagents in transition metal catalysed coupling reactions. The univalent species serve as ligands for transition metals, activate alkynes or alkenes and are utilized as catalysts in the transfer hydrogenation of azo‐compounds.

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Section: Group 13 Complexesmentioning

confidence: 98%

Section: Group 13 Complexesmentioning

confidence: 99%

(N),C,N‐Coordinated Heavier Group 13–15 Compounds: Synthesis, Structure and Applications

et al. 2020

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“…[141] The intermolecular DA stabilized group 13 hetrofluorenes feature stabilization with one LB (Scheme 26,c) [142] and two LB (Scheme 26,b). [143] The B and Ga derivatives are water-stable while Al and In are water-sensitive. The five-membered ring is non-aromatic (values of NICS(1) are small).…”

Section: Aluminum-containing Lewis Acidsmentioning

confidence: 99%

The Field of Main Group Lewis Acids and Lewis Superacids: Important Basics and Recent Developments

Timoshkin

2023

Chemistry A European J

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New developments in the field of Lewis acidity are highlighted, with the focus of novel Lewis acids and Lewis superacids of group 2, 13, 14, and 15 elements. Several important basics, illustrated by modern examples (classification of Donor‐Acceptor (DA) complexes, amphoteric nature of any compound in terms of DA interactions, reorganization energies of main group Lewis acids and the role of the energies of frontier orbitals) are presented and discussed. It is emphasized that the Lewis acidity phenomena are general and play vital role in different areas of chemistry: from weak “atomophilic” interactions to the complexes of Lewis superacids.

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“…[98][99][100][101][102][103][104] We have reported on the synthesis of air-and moisture-stable gallafluorenes by employing a protection group to form the tetracoordinate gallium atom ( Figure 15). 98 Because of the high durability, a series of optical properties can be monitored.…”

Section: )mentioning

confidence: 99%

Recent progress in the development of advanced element-block materials

Gon

Tanaka

Chujo

2017

Polym J

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135

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An element-block is defined as a minimum functional unit composed of heteroatoms. The concept of 'element-block material' for designing advanced materials was proposed in 2015. In this review, the recent progress in material designs based on this concept is described. From our research, several element-blocks as representative examples are selected, and their roles in each material are explained. Initially, research on the development of 'designable hybrids' by employing polyhedral oligomeric silsesquioxane (POSS) is illustrated. Multiple functions of hybrids composed of modified POSS and the significant roles of POSS in bio-related polymeric materials for solving critical problems in conventional 19 F MR probes and for realizing new sensing technologies are demonstrated. Next, solid-state luminescent materials containing o-carborane and group 13 element-blocks are discussed. The materials' highly efficient emission in the solid state and their origins are explained. Furthermore, stimuliresponsive luminescent chromism is summarized. The sensing mechanisms and the application of these materials as sensors are presented in this study. In the last part, we mention optically active element-blocks containing chiral P-stereogenic phosphorus. In this review, the characteristics originating from each element-block are explained.

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Synthesis and Characterization of Heterofluorenes with Five-coordinated Group 13 Elements

Cited by 15 publications

References 23 publications

(N),C,N‐Coordinated Heavier Group 13–15 Compounds: Synthesis, Structure and Applications

(N),C,N‐Coordinated Heavier Group 13–15 Compounds: Synthesis, Structure and Applications

The Field of Main Group Lewis Acids and Lewis Superacids: Important Basics and Recent Developments

Recent progress in the development of advanced element-block materials

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