Platinum(IV) Nitrato Complexes with 1,10-Phenanthroline
摘要:
The reaction between 1,10-phenanthroline (phen) and a nitric acid solution of platinum was studied. It was shown that, in contrast to the earlier studied reactions with pyridine and piperazine, no solid phases were formed by the salts of anionic platinum(IV) nitrato complexes with the phenanthrolinium cation in this case due to their high solubility. The new molecular platinum(IV) complex containing 1,10-phenanthroline [Pt(phen)(NO3)(4)] (1) was prepared upon long-term exposure. The salt (phenH)(4)(NO3)(2)[Pt(NO3)(6)] (2) was synthesized by the reaction between phenanthrolinium dinitrate (phen center dot 2HNO(3)) and the salt (Bu4N)(2)[Pt(NO3)(6)] in acetonitrile with a high yield. The crystal structure of complexes 1 and 2 was characterized by X-ray diffraction. Complex 2 was studied by IR spectroscopy, thermal analysis, and solid-state magic-angle spinning (SS-MAS) Pt-195 NMR spectroscopy. The results of this work could be used to develop the synthesis of new platinum complexes and for the preparation of platinum-containing heterogeneous catalysts.
Further studies of the hexaquo chromium(III) ion o-phenanthroline reaction
作者:R.G. Inskeep、Merrill Benson
DOI:10.1016/0022-1902(61)80278-9
日期:1961.12
Evidence is presented that cis diaquobis (o-phenanthroline) chronium(III) nitrate is more stable than the trans-diaquobis (o-phenanthroline) chromium(III) nitrate. Infra-red spectra from 5 to 40 μ are presented for cis-diaquobis (o-phenanthroline) chromium(III) nitrate and for the tetrakis (o-phenanthroline) μ-diol dichromium(III) nitrate as well as the pure ligand.