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Paper Information

Journal:   JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY)   SUMMER 2006 , Volume 16 , Number 60 (CHEMISTRY ISSUE); Page(s) 27 To 34.
 
Paper: 

INTERACTION BETWEEN METHYL TRIOXORHENIUM AND NITROGENE DONOR LIGANDS

 
 
Author(s):  REZAEI RAMIN*
 
* CHEMISTRY DEPARTMENT, FIROUZABAD BRANCH, ISLAMIC AZAD UNIVERSITY, FIROUZABAD, IRAN
 
Abstract: 

The interaction of monodentate N-donor ligands to MTO methyltrioxorhenium) is governed by both electronic and steric effects. For example, the formation constant of pyridine to MTO is 215.76 L mol-1, whereas that of the better donor 4-picoline is 703.14 L mol-1 and that of the sterically encumbered 2-picoline is <1 L mol-1.
Formation constants have been evaluated for this reaction, MTO + L= MTO.L, where L comprises monodentate N-donor ligands. A successful correlation of log K with pKa of L was realized except in the case of 2-substituted ligands.

 
Keyword(s): RHENIUM, NITROGEN DONORS, EQUILIBRIUM
 
References: 
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