Hisashi Okawa

Overview

Best Publications

• Design of metal-complex magnets. Syntheses and magnetic properties of mixed-metal assemblies {NBu4[MCr(ox)3]}x (NBu4+ = tetra(n-butyl)ammonium ion; ox2- = oxalate ion; M = Mn2+, Fe2+, Co2+, Ni2+, Cu2+, Zn2+)

  Hiroko Tamaki;Zhuang J. Zhong;Naohide Matsumoto;Sigeo Kida

  1136
  Citations

• Synthesis and magnetism of multi-dimensional cyanide-bridged bimetallic assemblies

  Masaaki Ohba;Hisashi Ōkawa

  1016
  Citations

• Complexes derived from the reaction of manganese(III) Schiff base complexes and hexacyanoferrate(III): Syntheses, multidimensional network structures, and magnetic properties

  Hitoshi Miyasaka;Naohide Matsumoto;Hisashi Okawa;Nazzareno Re

  489
  Citations

• Heterodinuclear metal complexes of phenol-based compartmental macrocycles

  Hisashi Ōkawa;Hideki Furutachi;David E. Fenton

  379
  Citations

• Oxalate-bridged bimetallic complexes {NH(prol)3}[MCr(ox)3] (M = Mn(II), Fe(II), Co(II); NH(prol)3(+) = tri(3-hydroxypropyl)ammonium) exhibiting coexistent ferromagnetism and proton conduction.

  Hisashi Okawa;Akihito Shigematsu;Masaaki Sadakiyo;Takuya Miyagawa

  343
  Citations

• Promotion of Low-Humidity Proton Conduction by Controlling Hydrophilicity in Layered Metal–Organic Frameworks

  Masaaki Sadakiyo;Hisashi Okawa;Hisashi Okawa;Akihito Shigematsu;Masaaki Ohba

  340
  Citations

• A Three-Dimensional Ferrimagnet with a High Magnetic Transition Temperature (TC) of 53 K Based on a Chiral Molecule

  Katsuya Inoue;Hiroyuki Imai;Prasanna S. Ghalsasi;Koichi Kikuchi

  306
  Citations

• A New Bimetallic Ferromagnet, [Ni(en)2]3[Fe(CN)6]2.cntdot.2H2O, with a Rare Rope-Ladder Chain Structure

  Masaaki Ohba;Naomi Maruono;Hisashi Okawa;Toshiaki Enoki

  273
  Citations

• Bimetallic Magnetic Material [Ni(diamine)2]2[Fe(CN)6]X with Two-Dimensional Network Extended by Fe(III)-CN-Ni(II) Linkages

  Masaaki Ohba;Hisashi Okawa;Nobuo Fukita;Yuzo Hashimoto

  271
  Citations

• Structure and Magnetic Properties of a Chiral Two‐Dimensional Ferrimagnet with TC of 38 K

  Katsuya Inoue;Koichi Kikuchi;Masaaki Ohba;Hisashi Okawa

  235
  Citations

• Binuclear Metal Complexes. III. Preparation and Properties of Mononuclear and Binuclear Copper(II) and Nickel(II) Complexes of New Macrocycles and Their Related Ligands

  Hisashi Okawa;Sigeo Kida

  221
  Citations

• [Mn(en)]3[Cr(CN)6]2⋅4 H2O: A Three-Dimensional Dimetallic Ferrimagnet (Tc=69 K) with a Defective Cubane Unit

  Masaaki Ohba;Naoki Usuki;Nobuo Fukita;Hisashi Ōkawa

  220
  Citations

• Heterodinuclear CuIIPbII and CuIIMII (M = Mn, Fe, Co, Ni, Cu, Zn) complexes of macrocycles with dissimilar 4- and 5-coordination sites : synthesis, structures, and properties

  Hisashi Okawa;Jun Nishio;Masaaki Ohba;Makoto Tadokoro

  214
  Citations

• Proton-Conductive Magnetic Metal–Organic Frameworks, {NR3(CH2COOH)}[MaIIMbIII(ox)3]: Effect of Carboxyl Residue upon Proton Conduction

  Hisashi Okawa;Hisashi Okawa;Masaaki Sadakiyo;Teppei Yamada;Mitsuhiko Maesato

  212
  Citations

• Series of Trinuclear NiIILnIIINiII Complexes Derived from 2,6-Di(acetoacetyl)pyridine: Synthesis, Structure, and Magnetism

  Takuya Shiga;Nobuhiro Ito;Akiko Hidaka;Hisashi Okawa

  208
  Citations

• Stepwise synthesis and magnetic control of trimetallic magnets [Co2Ln(L)2(H2O)4][Cr(CN)6].nH2O (Ln = La, Gd; H2L = 2,6-Di(acetoacetyl)pyridine) with 3-D pillared-layer structure.

  Takuya Shiga;Hisashi Okawa;Susumu Kitagawa;Masaaki Ohba

  208
  Citations

• Oxalate-bridged dinuclear Cr(III)-M(II) (M = Cu, Ni, Co, Fe, Mn) complexes: Synthesis, structure, and magnetism

  Masaaki Ohba;Hiroko Tamaki;Naohide Matsumoto;Hisashi Okawa

  186
  Citations

• Structure and Magnetic Properties of One-Dimensional PPh4[Ni(pn)2][M(CN)6]·H2O (M = Fe, Cr, Co) Bimetallic Assemblies

  Masaaki Ohba;Naoki Usuki;Nobuo Fukita;Hisashi Ökawa

  181
  Citations

• Dinuclear Nickel(II) Complexes of Phenol-Based "End-Off" Compartmental Ligands and Their Urea Adducts Relevant to the Urease Active Site

  Takeichiro Koga;Hideki Furutachi;Takako Nakamura;Nobuo Fukita

  179
  Citations

• Ferrimagnetic Mixed-Metal Assemblies {NBu4[MFe(ox)3]}x

  Hisashi Okawa;Naohide Matsumoto;Hiroko Tamaki;Mas Aakiohba

  169
  Citations

• cis-μ-1,2-Peroxo Diiron Complex: Structure and Reversible Oxygenation

  Unknown

  143
  Citations