352320-69-5Relevant academic research and scientific papers
Group 10 metal-thiocatecholate capped magnesium phthalocyanines-coupling chromophore and electron donor/acceptor entities and its impact on sulfur induced red-shifts
Bartlett, Malcolm Alan,Sundermeyer, J?rg
, p. 16255 - 16263 (2018)
A new and facile method of generating thiolate groups at the phthalocyanine (Pc) β-position is presented as well the unique properties that these groups confer on the Pc ligand upon coordination of group 10 metals Ni, Pd and Pt(dppe) or SnMe3. In particular, the Q-band is shifted to almost 800 nm for all group 10 metals used, and the complexes show panchromatic absorption owing to new absorbance bands that appear between 400 and 650 nm. Enhanced intersystem-crossing for all transition metal coordinated Mg(Pc) complexes was demonstrated by the moderate to very high singlet oxygen quantum yields of 0.36, 0.76 and 0.91 for the Ni, Pd and Pt coordinating complexes, respectively, which show that the heavy metals have direct influence on the Pc π-system and inter-system-crossing (ISC). This was further confirmed by MO calculations, which show mixing of metal and ligand orbitals, as well as suggest that the Q-band transition has both π → π* and ligand-to-metal charge transfer characteristics. Furthermore, the origin of the Q-band red-shift was shown to be due to greater destabilization of the HOMO compared to LUMO/LUMO+1, thus decreasing the HOMO-LUMO band gap.
Surface modified polymer hollow nanocapsules, and method for preparing the same
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, (2018/05/05)
The present invention relates to surface-modified polymer hollow nanocapsules in which polymer hollow nanocapsules, formed via polymerization of a composition containing a compound represented by chemical formula 1, are surface-modified to have a positive zeta potential when dispersed in water; and a method of preparing the same. In the chemical formula 1: X is subphthalocyanine, phthalocyanine, or porphyrin; L_1 is -OR_1- or -SR_2-, wherein the R_1 and R_2 are each independently a direct bond, an alkylene group having 1-10 carbon atoms, an alkenylene group having 2-10 carbon atoms, a cycloalkylene group having 6-20 carbon atoms, a cycloalkenylene group having 6-20 carbon atoms, or an arylene group having 6-20 carbon atoms; Y_1 is a vinyl group, an acryl group, a methacryl group, a thiol group, or an amine group; and m is an integer of 3-10.COPYRIGHT KIPO 2018
A Multifunctional Subphthalocyanine Nanosphere for Targeting, Labeling, and Killing of Antibiotic-Resistant Bacteria
Roy, Indranil,Shetty, Dinesh,Hota, Raghunandan,Baek, Kangkyun,Kim, Jeesu,Kim, Chulhong,Kappert, Sandro,Kim, Kimoon
, p. 15152 - 15155 (2016/01/25)
Developing a material that can combat antibiotic-resistant bacteria, a major global health threat, is an urgent requirement. To tackle this challenge, we synthesized a multifunctional subphthalocyanine (SubPc) polymer nanosphere that has the ability to target, label, and photoinactivate antibiotic-resistant bacteria in a single treatment with more than 99 % efficiency, even with a dose as low as 4.2 J cm-2 and a loading concentration of 10 nM. The positively charged nanosphere shell composed of covalently linked SubPc units can increase the local concentration of photosensitizers at therapeutic sites. The nanosphere shows superior performance compared to corresponding monomers presumably because of their enhanced water dispersibility, higher efficiency of singlet-oxygen generation, and phototoxicity. In addition, this material is useful in fluorescence labeling of living cells and shows promise in photoacoustic imaging of bacteria in vivo.
Synthesis, structure and physical properties of tetrabutylammonium salts of nickel complexes with the new ligand dcbdt = 4,5-dicyanobenzene-1,2-dithiolate, [Ni(dcbdt)2]z- (z = 0.4, 1, 2)
Simao, Dulce,Alves, Helena,Belo, Dulce,Rabaca, Sandra,Lopes, Elsa Branco,Santos, Isabel Cordeiro,Gama, Vasco,Duarte, Maria Teresa,Henriques, Rui Teives,Novais, Horacio,Almeida, Manuel
, p. 3119 - 3126 (2007/10/03)
The synthesis and characterization of the new aromatic ortho-dithiol, 4,5-dicyanobenzene-1,2-dithiol (3) is reported. This compound was used to prepare tetrabutylammonium salts of novel nickel complexes; the nickel(II) salt (nBu4N)2-[Ni(dcbdt)
