Energetic preference in 5,6 and 6,6 ring junction adducts of C60 : fulleroids and methanofullerenes

摘要: The reaction of organic diazo compounds with C[sub 60] is a versatile approach to fullerene functionalization. In this publication, employing combination spectroscopic techniques and MNDO calculations, we show that the initial product addition mixture methanofullerene methanoannulene (fulleroid) isomers. energetic preference observed in 5, 6 6, adducts appears be governed by general propensity buckminsterfullerene derivatives for structures greatest number doubly bonded junctions, which also implies 5-radialene rings. 16 refs., 2 figs.