The Experts below are selected from a list of 9 Experts worldwide ranked by ideXlab platform

Tamotsu Sugimori - One of the best experts on this subject based on the ideXlab platform.

  • the synthesis and spectral investigation of a novel highly water soluble aggregation free Antimony v phthalocyanine absorbing light in optical therapeutical window
    Journal of Inorganic Biochemistry, 2012
    Co-Authors: Hiroaki Isago, Harumi Fujita, Tamotsu Sugimori
    Abstract:

    Abstract A novel Antimony–phthalocyanine, [Sb(H 3 tsppc)(OH) 2 ], where H 3 tsppc denotes monodeprotonated tetrakis{(2′,6′-dimethyl-4′-sulfonic acid)phenoxyl}phthalocyaninate, has been synthesized through sulfonation of [Sb(tppc)(OH) 2 ] + (tppc denotes tetrakis{(2',6'-dimethyl)phenoxyl}phthalocyaninate) in concentrated sulfuric acid. This compound is highly soluble in water (ca. 4 × 10 − 2  M) without surfactant or alcohol. Moreover, it has been found free from aggregation in water up to almost 10 − 4  M, unlike its copper and metal-free analogues, and show an intense optical absorption and emission band in optical therapeutical window (700–800 nm). The axial hydroxyl groups play a crucial role in disaggregation of the Antimony Derivative in water.

Hiroaki Isago - One of the best experts on this subject based on the ideXlab platform.

  • the synthesis and spectral investigation of a novel highly water soluble aggregation free Antimony v phthalocyanine absorbing light in optical therapeutical window
    Journal of Inorganic Biochemistry, 2012
    Co-Authors: Hiroaki Isago, Harumi Fujita, Tamotsu Sugimori
    Abstract:

    Abstract A novel Antimony–phthalocyanine, [Sb(H 3 tsppc)(OH) 2 ], where H 3 tsppc denotes monodeprotonated tetrakis{(2′,6′-dimethyl-4′-sulfonic acid)phenoxyl}phthalocyaninate, has been synthesized through sulfonation of [Sb(tppc)(OH) 2 ] + (tppc denotes tetrakis{(2',6'-dimethyl)phenoxyl}phthalocyaninate) in concentrated sulfuric acid. This compound is highly soluble in water (ca. 4 × 10 − 2  M) without surfactant or alcohol. Moreover, it has been found free from aggregation in water up to almost 10 − 4  M, unlike its copper and metal-free analogues, and show an intense optical absorption and emission band in optical therapeutical window (700–800 nm). The axial hydroxyl groups play a crucial role in disaggregation of the Antimony Derivative in water.

Korber Nikolaus - One of the best experts on this subject based on the ideXlab platform.

  • Synthesis and Characterization of [Rb([18]crown-6)]3 As15 Zn·4NH3 and [Rb([2.2.2]crypt)]4 Sb14 Zn·8NH3
    'Wiley', 2017
    Co-Authors: Kaas Marina, Korber Nikolaus
    Abstract:

    The new compound [Rb([18]crown-6)](3)As15Zn center dot 4NH(3) was obtained by the reaction of Rb3As7, ZnPh2, [18] crown-6, and [2.2.2]crypt in liquid ammonia. The black monoclinic crystals contain the (As15Zn)(3-) anion, in which two As-7(3-) cages are linked by an As-Zn unit. The anionic units are separated by cationic [Rb([18]crown-6)](+) units. The analogous reaction of Rb3Sb7, ZnPh2, [18]crown-6, and [2.2.2]crypt yielded black triclinic crystals of the compound [Rb([2.2.2]crypt)](4)Sb14Zn center dot 8NH(3). This is the first Antimony Derivative with the (E14Zn)(4)(-) anionic motif, which consists of two nortricyclane like cages linked by a Zn atom. Quantum chemical calculations on the anionic units confirm that the electron density is mainly found at the periphery of the cluster system. This phenomenon is in accord with the observations already reported for the 1,2,3-tripnicolides

Harumi Fujita - One of the best experts on this subject based on the ideXlab platform.

  • the synthesis and spectral investigation of a novel highly water soluble aggregation free Antimony v phthalocyanine absorbing light in optical therapeutical window
    Journal of Inorganic Biochemistry, 2012
    Co-Authors: Hiroaki Isago, Harumi Fujita, Tamotsu Sugimori
    Abstract:

    Abstract A novel Antimony–phthalocyanine, [Sb(H 3 tsppc)(OH) 2 ], where H 3 tsppc denotes monodeprotonated tetrakis{(2′,6′-dimethyl-4′-sulfonic acid)phenoxyl}phthalocyaninate, has been synthesized through sulfonation of [Sb(tppc)(OH) 2 ] + (tppc denotes tetrakis{(2',6'-dimethyl)phenoxyl}phthalocyaninate) in concentrated sulfuric acid. This compound is highly soluble in water (ca. 4 × 10 − 2  M) without surfactant or alcohol. Moreover, it has been found free from aggregation in water up to almost 10 − 4  M, unlike its copper and metal-free analogues, and show an intense optical absorption and emission band in optical therapeutical window (700–800 nm). The axial hydroxyl groups play a crucial role in disaggregation of the Antimony Derivative in water.

Kaas Marina - One of the best experts on this subject based on the ideXlab platform.

  • Synthesis and Characterization of [Rb([18]crown-6)]3 As15 Zn·4NH3 and [Rb([2.2.2]crypt)]4 Sb14 Zn·8NH3
    'Wiley', 2017
    Co-Authors: Kaas Marina, Korber Nikolaus
    Abstract:

    The new compound [Rb([18]crown-6)](3)As15Zn center dot 4NH(3) was obtained by the reaction of Rb3As7, ZnPh2, [18] crown-6, and [2.2.2]crypt in liquid ammonia. The black monoclinic crystals contain the (As15Zn)(3-) anion, in which two As-7(3-) cages are linked by an As-Zn unit. The anionic units are separated by cationic [Rb([18]crown-6)](+) units. The analogous reaction of Rb3Sb7, ZnPh2, [18]crown-6, and [2.2.2]crypt yielded black triclinic crystals of the compound [Rb([2.2.2]crypt)](4)Sb14Zn center dot 8NH(3). This is the first Antimony Derivative with the (E14Zn)(4)(-) anionic motif, which consists of two nortricyclane like cages linked by a Zn atom. Quantum chemical calculations on the anionic units confirm that the electron density is mainly found at the periphery of the cluster system. This phenomenon is in accord with the observations already reported for the 1,2,3-tripnicolides