Directed synthesis and study of their spectroscopic behavior in solution of rare-earth phthalocyaninates substituted by benzyloxy- and methylphenylethylphenoxy-groups

Journal of Inclusion Phenomena and Macrocyclic Chemistry - Novel neodymium phthalocyaninates based on template condensation of 4-[(4-benzyloxy)phenoxy]- or...     

Effect of Impurities on Varistor Properties of High-Voltage ZnO Ceramics

Russian Journal of Applied Chemistry - The effect of cationic and anionic impurities on the varistor properties of high-voltage ZnO ceramics with a ZnO content of 75 wt % and a weight ratio of...     

Tetrakis(4-bromophenoxy)phthalocyanine,its metal complexes,and their sulfonated derivatives: the synthesis and spectral properties

Russian Chemical Bulletin - Tetrakis(4-bromophenoxy)phthalocyanine and its metal complexes (M = Mg, Co, Cu, Zn) were synthesized. Sulfochlorination of these compounds followed by hydrolysis of the...     

Phthalocyanines containing macrocyclic and azo chromophores in the molecule

4-[(Z)-(R)-Diazenyl]phthalonitriles and cobalt phthalocyanines on their basis are synthesized and their electron absorption spectra are studied.     

Synthesis and Properties of Tetra(4-<Emphasis Type="Italic">tert</Emphasis>-butyl-5-phenylsulfanyl)phthalocyanines and Their Derivatives

The methods of synthesis of 4-tert-butyl-5-sulfanylphenyl-and 4-tert-butyl-5-(4'-carboxyphenylsulfanyl) phthalonitriles have been developed and on their basis the corresponding octa-substituted phthalocyanines have been prepared. The effect of the structure of the above phthalocyanine derivatives on their electronic absorption spectra and parameters of thermal degradation in the presence of air oxygen were studied.     

Influence of 4-[(E)-(4′-Heptyloxyphenyl)diazenyl]phthalonitrile on the Properties of a Cyanobiphenyl Liquid Crystal Mixture

Russian Journal of General Chemistry - The mesomorphic properties of 4-[(E)-(4′-heptyloxyphenyl)diazenyl]phthalonitrile (7O-AB-CN2) were studied by polarization microscopy and DSC method....     

Sorption-chromatographic determination of phosphate and silicate ions in waters as molybdic heteropoly acids

Conditions were found for the group adsorption preconcentration of phosphomolybdic and silicomolybdic heteropoly acids (HPAs) in the dynamic mode on a microcolumn packed with an Amberlite XAD-8 polyacrylate adsorbent. A sorption-chromatographic method for determining phosphate and silicate ions in waters as molybdic HPAs is developed. It is based on the adsorption of HPAs followed by desorption with acetonitrile and determination by reversed-phase HPLC. The detection limits for phosphorus and silicon calculated by the 3s test were 0.5 and 0.1 μg/L, respectively.     

多核羰基钴配合物的合成及其催化活性的研究

多核羰基钴配合物对很多有机化学反应有良好的催化作用,从而引起人们很大关注.但这类配合物由高压反应得到,因此给实用带来不便. 我们通过各种含膦配体的氯化钴,在锌粉存在下,与一氧化碳在常温常压下反应,得到了一系列通式为:(PR_3)_mCo_n(CO)_x的多核羰基钴配合物,讨论了它们的结构,并对这些配合物在由十四碳烯羰基合成作为表面活性剂原料的十五碳伯醇反应中的催化性能进行了研究.     

光度法测定松脂中的铝

研究了用铝试剂,乙酸－乙酸铵缓冲溶液组织的体系以及光度法测定松脂微量铝的条件,提出了一种灵敏度、选择性与稳定性较好的测定松脂中铝的方法,在０－５０μｇ／５０ｍＬ范围内服从比耳定律。     

微波消解-FAAS法测定三种蒙成药中铜、铁、锰、钙和镁

微波消解 -火焰原子吸收分光光度法测定蒙成药中 5种金属元素。实验结果表明 ,微波消解方法简便 ,消化时间短 ;测试方法具有较好的精密度和准确度