Solid State Properties of Metal-Assembled Complexes

We have studied solid state properties of metal-assembled complexes and have obtained the following results；1)Two new Pd(Dmit)_2-based molecular superconductors have been found.Electronic states of these systems under pressure have been investigated with X-ray diffraction method and band calculation.2)Two examples of superconductivity induced by uniaxial strain have been found in molecular conductors，(DIETS)_2[Au(CN)_4]and宅‘-Me_4As[Pd(Dmit)_2]_2，where metal complexes play an important role.3)The first metallic crystals of Ni(tmdt crystals of Ni(Tmdt)_2composed of single component complecules)_2Pt)，have been found。For(DMET)_2 FeBr_4，a direct evidence of the WO mi-d interaction particularly enhanced around the M-I transition has been obtained by the magnetoresistance measurements.5)The newly synthesized mixed-valence complex[(n-Pr)_4N][Fe^&lt；II&gt；Fe^&lt；III&gt；(Dto)_3]has been revealed that the system shows the ferromagnetic transition at 6.5K and the reversible charge transfer phase transition at about120K.6)We have prepared several[Fe(4-R=z)_3]complex films by using ion-exchange films such as Nafion film as counter anion，And have revealed that these films show the spin-crossover phenomenon near the room temperature.7)The dynamical study on the photo-effect under magnetic field in organic Fe(II)complex which shows the spin-crossover transition has revealed that the cooperative interaction plays an important role in the dynamic proof the photoconversion.8)Gigantic optical nonlinearity has been found in one the dimensional(1D)Motinsulcess of the photoconversion.8)

We have studied solid state properties of metal-assembled complexes and have obtained the following results;1) Two new Pd(dmit)_2-based molecular superconductors have been found. Electronic states of these systems under pressure have been investigated with X-ray diffraction method and band calculation.2) Two examples of superconductivity induced by uniaxial strain have been found in molecular conductors, (DIETS)_2[Au(CN)_4] and ヲツ'-Me_4As[Pd(dmit)_2]_2, where metal complexes play an important role.3) The first metallic crystals of Ni(tmdt)_2 composed of single component molecules have been synthesized and characterized.4) The first examples of metallic systems interacting with ferromagnetic spins, (EDO-TTF)_2M(mnt)_2 (M=Ni, Pt), have been found. For (DMET)_2FeBr_4, a direct evidence of the ヲミ-d interaction particularly enhanced around the M-I transition has been obtained by the magnetoresistance measurements.5) The newly synthesized mixed-valence complex [(n-Pr)_4N][Fe^<II>Fe^<III>(dto)_3] has been revealed that the system shows the ferromagnetic transition at 6.5 K and the reversible charge transfer phase transition at about 120 K.6) We have prepared several [Fe(4-R=z)_3] complex films by using ion-exchange films such as Nafion film as counter anion, and have revealed that these films show the spin-crossover phenomenon near the room temperature.7) The dynamical study on the photo-effect under magnetic field in organic Fe(II) complex which shows the spin-crossover transition has revealed that the cooperative interaction plays an important role in the dynamic process of the photoconversion.8) Gigantic optical nonlinearity has been found in the one-dimensional (1D) Mott insulators, halogen-bridged Ni complexes, with electro-reflectance measurements, which strongly indicates a high potential for new optoelectronic materials of the 1D Mott-insulators.