Document Details Document Type : Article In Journal  Document Title : Negative Solvatochromism of Ferrocenyl Methine Dyes تأثير مذيب سلبي لأصباغ الميثان المشتقة من الفروسين   Subject : Chemistry  Document Language : English  Abstract : A novel solvatochromic ferrocenyl methine dyes has been synthesized by condensation of ferrocen-3-caboxaldehyde with active methylene compounds under Knoevengel conditions and characterized by UV-vis in a range of solvents. Compound 1a has a red shift in ?-?* and a blue shift increases with solvent polarity in the MLCT (M?A) while 1b-1d variation of red as well as blue shifts from both states. No d-d transition is observed in these compounds. These shifts are interpreted by different dipole moments in the ground and excited state as well as solvent interaction between solute/solvent and H-bonding with the acceptor.  ISSN : 1319-1012  Journal Name : Journal of King Abdulaziz University  Volume : 21  Issue Number : 1  Publishing Year : 2009 AH 2009 AD  Article Type : Article  Added Date : Sunday, January 31, 2010  Researchers Researcher Name (Arabic) Researcher Name (English) Researcher Type Dr Grade Email Abdullah محمد عسيري Asiri, عبدالله Mohamed Researcher Doctorate aasiri2@kau.edu.sa محمد سعيد العمودي Al-Amoudi, Muhammed S Researcher Doctorate   Files File Name Type Description  24957.pdf pdf Abstract Back To Researches Page