“…These signals were essentially reproduced by GIAO calculation using the optimized structure and can be assigned as follows. Three characteristic signals shifted up eld at 71.8, 62.4, and 56.6 ppm are due to the 29 Si nuclei of the cyclotrisilane rings (Si1, Si4, and Si8). 35 The signals at 25.0, 29.1, 35.4, and 39.0 ppm can be assigned to any of 29 Si nuclei of Si2, Si3, Si5, and Si6.…”