Synthesis of Air- and Moisture-Stable Dibenzogallepins: Control of Planarity of Seven-Membered Rings in Solid States by Coordination to Gallium Atoms

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

doi:10.1021/acs.orglett.5b00489

Cited by 22 publications

(18 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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%

See 1 more Smart Citation

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

et al. 2020

View full text Add to dashboard Cite

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.

show abstract

Section: Group 13 Complexesmentioning

confidence: 98%

“…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. Therefore, these compounds were considered as attractive building blocks for organic materials in photovoltaic cells and light‐emitting diodes …”

Section: Group 13 Complexesmentioning

confidence: 99%

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

et al. 2020

View full text Add to dashboard Cite

show abstract

“…[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

Self Cite

129

View full text Add to dashboard Cite

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.

show abstract

“…According to these data, we focused on the effect of ring fusion on the solid‐state luminescent properties. We presumed that the optical properties could be tuned by precisely modulating the bridged structure . To evaluate the validity of this assumption, chalcogen‐bridged boron pyridinoiminate complexes were designed.…”

Section: Introductionmentioning

confidence: 99%

Design of Conjugated Molecules Presenting Short‐Wavelength Luminescence by Utilizing Heavier Atoms of the Same Element Group

Yamaguchi

Tanaka

Chujo

2018

Chemistry An Asian Journal

Self Cite

View full text Add to dashboard Cite

The introduction of heavy atoms into conjugated molecules often induces a redshift in the emission spectra. Conversely, we report here a blueshifting effect in the absorption and emission bands of a conjugated organic dye by employing a heavier atom from the same element group. Boron complexes having oxygen- and sulfur-bridged structures in the ligand moiety were synthesized, and their optical properties were compared. Significant optical bands in the absorption and luminescence spectra of the sulfur-bridged complex were observed in a shorter wavelength region than those of the oxygen-bridged complex. Theoretical calculations suggest that replacement of the bridging atom by a heavier one should reduce molecular planarity because of the larger atom size. As a result, the degree of electronic conjugation decreases, and this is followed by a blueshift in the optical bands. Finally, a blue-emissive crystal is demonstrated.

show abstract

Synthesis of Air- and Moisture-Stable Dibenzogallepins: Control of Planarity of Seven-Membered Rings in Solid States by Coordination to Gallium Atoms

Cited by 22 publications

References 62 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

Recent progress in the development of advanced element-block materials

Design of Conjugated Molecules Presenting Short‐Wavelength Luminescence by Utilizing Heavier Atoms of the Same Element Group

Contact Info

Product

Resources

About