فهرس المقالات Tris (trihexyltetradecylphosphonium) gadolinium hexachloride حرية الوصول المقاله صفحة الملخص نص كامل 1 - Application of tris (trihexyltetradecylphosphonium) gadolinium hexachloride as magnetically recoverable catalyst for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones in solvent-free conditions maryam Gorjizehad