The synthesis, structure, and solid-state emission of vaulted trans-bis(salicylaldiminato)platinum(ii) complexes 1-3 with halogen functionalities are described and compared with the non-substituted analogues. Chloro-substitution provided an improvement of the low emission properties of short-vaulted, non-substituted complexes 1 and 2 in the crystalline state at ambient temperature, while the in...

This study examines the binding and chemical stability of the platinum hexahalides K2PtCl6, K2PtBr6 and K2PtI6 when soaked into pre-grown hen egg-white lysozyme (HEWL) crystals as the protein host. Direct comparison of the iodo complex with the chloro and bromo complexes shows that the iodo complex is partly chemically transformed to a square-planar PtI3 complex bound to the N(δ) atom of His15,...

Three new pyridyltriazole ligands (named pyta) bearing a 4-substituted phenyl arm (nitro- (2a), chloro- (2b) or aminophenyl (2c) moiety) have been synthesized using a convenient click chemistry strategy. The corresponding tricarbonylrhenium complexes 3a, 3b and 3c were prepared and fully characterized by means of NMR, IR and mass spectrometry, as well as X-ray crystallography for two of them (3...

in this study adsorption of 1-chloro-4-nitrobenzene on single walled carbon nanotubes has been investigated.  the effect of contact time, ph, initial concentration of 1-chloro-4-nitrobenzene, adsorbent dosage and temperature on its adsorption has been carried out in order to find optimum adsorption conditions. adsorption isotherms and related constants were also determined. results showed that ...

Complexes of diazoxide (3-methyl-7-chloro-1,2,4-benzothiadiazine-1,1-dioxide) - an antihypertensive and hyperglycemic pharmacological agent - with a series of transition- and main-group di-, triand tetravalent metal ions were prepared and characterized by elemental analysis, spectroscopic, thermogravimetric, magnetic and conductimetric measurements. The complexes were tested as inhibitors of th...

Three gold(iii) complexes with terminal amido ligands were prepared by the reaction of [Au(III)(trpy)(OH)](ClO4)2 and primary amines having electron-withdrawing groups such as 2-amino-4-chloropyrimidine, 2-amino-5-chloro-pyridine, and 2-aminopyrimidine. Conversion of the amido ligands into the imido or amine ligands resulted in the decomposition of the complexes by intramolecular redox reaction...

The low temperature photochemical decomposition of 3- chloro-croton aldehyde tosylhydrazone sodium salt in tetrahydrofuran results in the formation of 3- chloro- 3- methyl cyclopropene and 5- chloro- 5- methyl- pyrazolenine respectively. In the presence of moisture, the photohydrated compound 3 was obtained as one of the products

The six-coordinate oxovanadium(IV) complexes [VO(RTPP)(L)] (where R=H, methyl, methoxy and chloro groups and L= methyl and ethyl substituted benzimidazoles) were prepared by reacting the ligands; 2-methylbenzimidazole and 2-ethylbenzimidazole with various VO(RTPP). The complexes were characterized by elemental analysis, IR, UV–Vis and H & C NMR. All complexes show V=O stretching vibrations betw...