Isolation and characterization of carbene derivatives of La@C82(Cs)

Takeshi Akasaka; Takayoshi Kono; Yoichiro Matsunaga; Takatsugu Wakahara; Tsukasa Nakahodo; Midori O Ishitsuka; Yutaka Maeda; Takahiro Tsuchiya; Tatsuhisa Kato; Michael T H Liu; Naomi Mizorogi; Zdenek Slanina; Shigeru Nagase

doi:10.1021/jp7097747

Isolation and characterization of carbene derivatives of La@C82(Cs)

J Phys Chem A. 2008 Feb 14;112(6):1294-7. doi: 10.1021/jp7097747. Epub 2008 Jan 17.

Authors

Takeshi Akasaka¹, Takayoshi Kono, Yoichiro Matsunaga, Takatsugu Wakahara, Tsukasa Nakahodo, Midori O Ishitsuka, Yutaka Maeda, Takahiro Tsuchiya, Tatsuhisa Kato, Michael T H Liu, Naomi Mizorogi, Zdenek Slanina, Shigeru Nagase

Affiliation

¹ Center for Tsukuba Advanced Research Alliance, University of Tsukuba, Ibaraki 305-8577, Japan. akasaka@tara.tsukuba.ac.jp

PMID: 18198854
DOI: 10.1021/jp7097747

Abstract

The photochemical reaction of La@C82(Cs) with 2-adamantane-2,3-[3H]-diazirine (1) affords the adduct 2 of La@C82(Cs) with adamantylidene (Ad:) in a high selectivity. The two isomers of La@C82(Cs)(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@C82(Cs), suggesting that 2a and 2b retain the essential electronic and structural character of La@C82(Cs).