12 Result(s)

Article

Synthesis and Properties of Conjugated Copolymer Based on Poly(p-phenylenevinylene) Containing Tricarbonyl(arene)chromium and Thiophene Units in the Main Chain

A novel Poly(p-phenylenevinylene)-type (PPV-type) conjugated copolymer containing tricarbonyl(arene)chromium and thiophene units in the main chain was synthesized by Horner–Wadsworth–Emmons coupling reaction. The...

Yasuhiro Morisaki, Hui Chen, Yoshiki Chujo in Polymer Journal (2003)

Article

Synthesis and Optical Properties of Novel Through-Space π-Conjugated Polymers Having a Dithia[3.3]metacyclophane Skeleton in the Main Chain

Palladium-catalyzed polymerization of 6,15-dibromo-2,11-dithia[3.3]metacyclophane 5 and 2,5-dialkoxy-1,4-diethynylbenzenes 6a–b was carried out to give the corresponding polymers 7a–b having dithia[3.3]metacyclop...

Yasuhiro Morisaki, Tamao Ishida, Yoshiki Chujo in Polymer Journal (2003)

Article

Synthesis of PAMAM Dendrimers Possessing [2.2]Paracyclophane on Their Surface

Yasuhiro Morisaki, Yoshiyuki Shiotani, Lin Lin, Yoshiki Chujo in Polymer Journal (2008)

Article

Naphthalene-based oligothiophene-stacked polymers

We report the synthesis and properties of π-stacked polymers consisting of oligothiophene and naphthalene as the stacked π-system and the scaffold, respectively. The titled polymers were obtained by the Suzuki...

Yasuhiro Morisaki, Jonas Alves Fernandes, Yoshiki Chujo in Polymer Journal (2010)

Article

Synthesis and low-temperature dehydrating imidation polymerization of 1,4-dihydro-1,4-diarsininetetracarboxylic acid dianhydride

cis-1,4-Dihydro-1,4-dimethyl-1,4-diarsinine-2,3,5,6-tetracarboxylic acid dianhydride (cis-DHDADA) was quantitatively formed from cis-1,4-dihydro-1,4-dimethyl-2,3,5,6-tetrakis(t-butoxycarbonyl)-1,4-diarsinine (cis

Kensuke Naka, Manabu Arita, Tatsuo Shimamoto, Yasuhiro Morisaki… in Polymer Journal (2011)

Article

Aromatic-ring-layered polymers composed of fluorene and xanthene

Aromatic-ring-layered polymers were synthesized by Sonogashira–Hagihara coupling reaction using xanthene as a scaffold. The polymers were characterized by various spectroscopic and electrochemical methods. The...

Jonas Alves Fernandes, Yasuhiro Morisaki, Yoshiki Chujo in Polymer Journal (2011)

Article

Synthesis of unsymmetrical P-stereogenic oligophosphines and chemoselective cleavage of phosphine-borane coordinate bonds

This paper describes the synthetic details and coordination abilities of optically active P-stereogenic tetraphosphine and hexaphosphine with different substituted groups on their phosphorus atoms. The polymer...

Hiroaki Imoto, Ryosuke Kato, Yasuhiro Morisaki, Yoshiki Chujo in Polymer Journal (2012)

Article

Synthesis and characterization of an alternating copolymer with 1,2-disubstituted and 9,12-disubstituted o-carborane units

The alternating copolymer containing p-phenylene-ethynylene, 1,2-disubstituted o-carborane and 9,12-disubstituted o-carborane units in the main chain was prepared. Through the Sonogashira–Hagihara coupling, the d...

Masato Tominaga, Yasuhiro Morisaki, Hirofumi Naito, Yoshiki Chujo in Polymer Journal (2014)

Article

Synthesis of optically active through-space conjugated polymers consisting of planar chiral [2.2]paracyclophane and quaterthiophene

The alternating copolymers containing planar chiral 4,12-disubstituted[2.2]paracyclophane and quaterthiophene units in the main chain were prepared. The obtained optically active polymers exhibited mirror imag...

Yasuhiro Morisaki, Kenichi Inoshita, Shotaro Shibata, Yoshiki Chujo in Polymer Journal (2015)

Article

The relationship between magneto-optical properties and molecular chirality

The chiral nonanuclear Tb(III) clusters [Tb₉(sal-(R)-Bt)₁₆(μ-OH)₁₀]⁺[NO₃]⁻ (Tb-(R)-Bt: sal-(R)-Bt=(R)-2-butyl salicylate) and [Tb₉(sal-(S)-Bt)₁₆(μ-OH)₁₀]⁺[NO₃]⁻ (Tb-(S)-Bt: sal-(S)-Bt=(S)-2-butyl salicylate) were...

Satoshi Wada, Yuichi Kitagawa, Takayuki Nakanishi, Koji Fushimi… in NPG Asia Materials (2016)

Article

π-Conjugated polymer-layered structures: synthesis and self-assembly

π-Conjugated polymers capped with a boronic acid end-functional group were synthesized by chain-growth Suzuki–Miyaura polycondensation. The obtained polymers were reacted with a π-stacked-polymer scaffold, develo...

Yuichi Tsuji, Yasuhiro Morisaki, Yoshiki Chujo in Polymer Journal (2017)

Article

Aggregation-induced emission from optically active X-shaped molecules based on planar chiral [2.2]paracyclophane

An optically active π-stacked molecule was synthesized incorporating planar chiral [2.2]paracyclophane and o-carborane units to impart circularly polarized luminescence and aggregation-induced emission properties...

Keishi Jikuhara, Ryo Inoue, Yasuhiro Morisaki in Scientific Reports (2023)