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The geometric features and spectral characteristics of some pentaamineruthenium(II) complexes. 2000

A O Alyoubi
Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia. scf3038@kaau.edu.sa

The geometric and bonding parameters of Ru(II) pentaaminepyridine and cyanopyridine complexes are examined via ab initio molecular orbital calculations. The results show that the nitrile bonded complexes are more stable than the pyridine bonded ones by 71-625 kJ mol(-1) depending on the position of the nitrile group. Solvent dependence of MLCT bands are interpreted and discussed.

UI MeSH Term Description Entries
D009570 Nitriles Organic compounds containing the -CN radical. The concept is distinguished from CYANIDES, which denotes inorganic salts of HYDROGEN CYANIDE. Nitrile
D011725 Pyridines Compounds with a six membered aromatic ring containing NITROGEN. The saturated version is PIPERIDINES.
D000588 Amines A group of compounds derived from ammonia by substituting organic radicals for the hydrogens. (From Grant & Hackh's Chemical Dictionary, 5th ed) Amine
D013056 Spectrophotometry, Ultraviolet Determination of the spectra of ultraviolet absorption by specific molecules in gases or liquids, for example Cl2, SO2, NO2, CS2, ozone, mercury vapor, and various unsaturated compounds. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Ultraviolet Spectrophotometry
D017975 Ruthenium Compounds Inorganic compounds that contain ruthenium as an integral part of the molecule. Compounds, Ruthenium

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