Isolation and characterization of carbene derivatives of La@C-82(C-s)

Akasaka T; Kono T; Matsunaga Y; Wakahara T; Nakahodo T; Ishitsuka MO; Maeda Y; Tsuchiya T; Kato T; Liu MTH; Mizorogi N; Slanina Z; Nagase S

Journal of Physical Chemistry A, Vol.112, No.6, 1294-1297, 2008

Akasaka T, Kono T, Matsunaga Y, Wakahara T, Nakahodo T, Ishitsuka MO, Maeda Y, Tsuchiya T, Kato T, Liu MTH, Mizorogi N, Slanina Z, Nagase S

The photochemical reaction of La@C-82(C-s) with 2-adamantane-2,1,3-[3H]-diazirine (1) affords the adduct 2 of La@C-82(C-s) with adamantylidene (Ad:) in a high selectivity. The two isomers of La@C-82(C-s)(Ad), 2a and 2b, are isolated by HPLC and characterized by electron spin resonance, mass, and UV-vis-near-infrared spectroscopies. The electronic properties of 2a and 2b are very similar to that of the pristine La@C-82(C-s), suggesting that 2a and 2b retain the essential electronic and Structural character of La@C-82(C-s).