Metal complexes of 2,5-dicarboxamidopyrroles and 2,5-dicarbothioamidopyrroles have been structurally characterised for the first time, complementing the significant amount of work that has been reported for the analogous pyridine ligands. N,N'-Bis(3,5-dinitrophenyl)-3,4-diphenyl-1H-pyrrole-2,5-dicarboxamide forms octahedral bis(tridentate) complexes with cobalt(III) and nickel(II), where the li...

The novel versatile cobalt(I) tris-carbene complex [(TIMEN(xyl))Co]Cl (1) (where TIMEN = (tris[2-(3-arylimidazol-2-ylidene)ethyl]amine) reacts with CO, one-electron oxidizers such as CH(2)Cl(2), and O(2) to yield the cobalt complexes [(TIMEN(xyl))Co(CO)]Cl (2), [(TIMEN(xyl))Co(Cl)]Cl (3), and peroxo species [(TIMEN(xyl))Co(O(2))](BPh(4)) (5). All new complexes were fully characterized by (1)H N...

By WILLIAM KERPPOLA, M.I).* P HOSPHATASE can be demonstrated in tissues by means of reliable histochemical methods. Such a method! w’as described for alkaline phosphatase in 1939 by Gomori,#{176}’ and in the same year by Takamatsu.2 Two years later Gomori#{176} described his method for demonstrating acid phosphatase. The principle on which these methods are based is to incubate slices of tissue...

Ambient-pressure soft X-ray photoabsorption spectroscopy (XAS) was demonstrated to be applicable to the chemical analysis of hydrated transition-metal compounds. For this purpose, even under ambient-pressure conditions, electron yield detection XAS (EY-XAS), based on a simple drain-current set-up, was used to overcome a weakness in fluorescence yield detection XAS (FY-XAS), which does not give ...

the vase life of cut flowers prolong by some compounds, which can improve their hormonal regulation and water relations or reduce microbial growth in xylem tissu. the effect of chemical treatments on vase life longevity of rose 'ilona'. a randomized complete block design with three replications conducted with following the treatments of control, sts , nickel sulfate, cobalt chloride, ...