The molecular arrangement of functional chromophores is essential to construct functional nanomaterials. Synthetic DNA has been used as a structural scaffold to control and construct molecular assembly. We now describe the formation of artificial ...
B- to Z-DNA transitions play a crucial role in biological systems and have attracted the interest of researchers for their applications in DNA nanotechnology. DNA and DNA analogues have also been used as templates to construct helical chromophore ...
The construction of zipper-like chromophore-arrays in the major groove of duplex DNA remains a challenge because only a few chromophores for this application have been discovered. To address the challenge, dual-chromophore labeled DNAs having a se...
We here describe a photocurrent generation system exploiting gold nanoparticles (AuNPs) that cover perylenediimide-DNA complexes on electrode surfaces. Enhanced photocurrents were generated by the irradiation of the AuNPs, attributed to the effici...
M Nakamura   Y Okamoto   S Takamuku   
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS 106(1-4) 137-144 1995年
Upon UV-irradiation in alcohol, tri-1-naphthyl phosphate give 1-naphthyl 1,2'-binaphthalene-1'-yl phosphate and 1,1'-binaphthalene through intramolecular processes. Under the same conditions, tris(8-quinolyl) phosphate give alkyl phosphates by pho...
M NAKAMURA   M SHI   Y OKAMOTO   S TAKAMUKU   
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY 85(1-2) 111-118 1995年1月
On UV irradiation in methanol, bis(methoxyphenyl) methylphosphonates undergo ipso coupling of two methoxyphenyl groups or intramolecular rearrangement of a methoxyphenyl group to give dimethoxybiphenyl and trimethoxybiphenyl respectively. They exh...
M NAKAMURA   K SAWASAKI   Y OKAMOTO   S TAKAMUKU   
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 (1) 141-146 1994年1月
UV irradiation of bis(4-methoxyphenyl) methylphosphonate 1a in methanol gave 4,4'-dimethoxybiphenyl 2a as the main product through an intramolecular excimer. With 4-cyanophenyl-4-methoxyphenyl methylphosphonate 1b 4-cyano-4'-methoxybiphenyl 2c and...
M NAKAMURA   Y OSAKO   Y OKAMOTO   S TAKAMUKU   
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS 85(1-4) 141-148 1993年
Photosubstitution of diethyl methoxyphenyl phosphate with some nucleophiles (Cl-, Br-, CN-) in methanol gave the corresponding 4-chloro-, 4-bromo-, and 4-cyanomethoxybenzenes through a singlet excited state. In acidic media, the reaction was accel...
Y OKAMOTO   M NAKAMURA   M SHI   S TAKAMUKU   
PHOTOCHEMISTRY AND PHOTOBIOLOGY 56(3) 403-407 1992年9月
The fluorescence spectra of bis(4-methoxyphenyl) hydrogen phosphate and tris(4-methoxyphenyl) phosphate showed two emission bands. A long-wavelength emission band arose from the intramolecular excimer of two 4-methoxyphenyl groups and a short band...
M. Nakamaura, T. Takada, K. Yamana(範囲:Templated Arrays of Multichromophores and Oligonucleotides Supported by Metal Interactions and Their Functional Relevance)