Janczak, Jan published the artcileThe synthesis, structure, and spectral properties of antimony(III) phthalocyanine obtained under iodine vapor atmosphere: (SbIIIPc)(I3) 1/2(I2), Safety of Phthalonitrile, the main research area is phthalonitrile reaction antimony iodine; antimony phthalocyanine iodine preparation crystal mol structure.
New antimony(III) phthalocyanine complex under iodine vapor atm., (SbIIIPc)(I3)·1/2(I2), (1), was obtained. The (SbIIIPc)(I3)·1/2(I2) crystallizes in the centrosym. space group of the triclinic system. The (SbPc)+ unit is non-planar Two inversion related (SbIIIPc)(I3) units interact each other via neutral I2 mol. yielding {[C32H16N8Sb](I3)}2(I2) dimeric aggregate. Resonance Raman spectroscopy was used to identification of the iodine forms in crystal. The aggregates related by translation in the direction of the a-axis form a stacking structure. However, within the stacks, the Pc rings are clearly shifted, so the π-π interactions is relatively very low, due to their non-planarity, as well as by only partial overlapping of the outermost six-membered rings of the adjacent back-to-back-oriented (SbPc)+ macrocycles. The interaction between the building units (SbPc)+, I-3 and I2 were analyzed using the Hirshfeld surface and the anal. of the 2D fingerprint plots. Relatively low interactions of π…π result in its considerable solubility, which manifests itself particularly in the improvement of optical properties of solutions UV-Vis absorption spectra of 1 were taken in DMSO and toluene solutions in the concentration range from 10-5 to 10-6 mol/l. No significant changes related to aggregation in solutions were observed Diffuse reflectance spectroscopy (DSR) due to interactions between the mols. in solid-state, showed much wider bands compared to the UV-Vis bands of the complex in solution Oxidation of (SbIIIPc)(I3)·1/2(I2) in methanol solution by H2O2 yields SbVPc derivative Both SbIII and SbV phthalocyanine derivatives absorb near IR light (600-900 nm) which should be intriguing with the point of view of potential use as an IR cut filter for plasma display and silicon photodiodes, and in addition to as photosensitizers for semiconductor lasers.
Inorganica Chimica Acta published new progress about Crystal structure. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Safety of Phthalonitrile.
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts