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Anisotropic Expansion of an M 2 L 4 Coordination Capsule: Host Capability and Frame Rearrangement
Author(s) -
Yamashina Masahiro,
Yuki Tsubasa,
Sei Yoshihisa,
Akita Munetaka,
Yoshizawa Michito
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201406445
Subject(s) - capsule , anisotropy , ligand (biochemistry) , elongation , fullerene , chemistry , materials science , crystallography , physics , optics , composite material , biology , organic chemistry , biochemistry , botany , receptor , ultimate tensile strength
Anisotropic expansion of a spherical M 2 L 4 coordination capsule through the elongation of the ligand led to a new M 2 L′ 4 capsule. The expanded capsule provides an elliptical cavity encircled by polyaromatic frameworks with large openings and thereby can encapsulate elliptical fullerene C 70 and monofunctionalized fullerene C 60 in high yields. In addition, selective formation of a new M 2 L 2 L′ 2 capsule occurs by mixing the original M 2 L 4 and expanded M 2 L′ 4 capsules in a 1:1 ratio upon addition of C 60 or monofunctionalized C 60 as a template molecule.