TY - JOUR
T1 - Transition metal and lanthanide cluster complexes constructed with thiacalix[n]arene and its derivatives
AU - Kajiwara, Takashi
AU - Iki, Nobuhiko
AU - Yamashita, Masahiro
N1 - Funding Information:
This work was supported by a Grant-in-Aid for Scientific Research of Priority Areas (Panoscopic Assembling and High Ordered Functions for Rare Earth Materials) from the Ministry of Education, Culture, Science, Sports, and Technology, Japan.
PY - 2007/7
Y1 - 2007/7
N2 - This review deals with the formations, structures, and properties of transition metal and lanthanide clusters supported by thiacalix[n]arene and its oxidized derivatives, sulfinylcalix[4]arene and sulfonylcalix[4]arene. Each thiacalix[n]arene possesses donor atoms both on the lower rim position (phenol oxygen atoms) and on the cyclic framework itself (-S-, -SO-, or -SO2-), and behaves as a multidentate multi-nucleating ligand to support the formation of a phenoxo-bridged cluster core. For first row transition metals, calix[4]arenes offer a platform for assembling the metal ions via four fac-tridentate coordination sites, and planar tri- and tetra-nuclear clusters are formed. A larger and more flexible thiacalix[6]arene could bind up to five metal ions inside the coordination cavity formed when it adopts the pinched cone conformation. Sulfonylcalix[4]arene shows a strong affinity to lanthanide ions through phenoxo and sulfonyl oxygen donors, and yields a variety of cluster compounds involving di-, tetra-, octa-, and dodeca-nuclear cores, achieved by controlled synthetic conditions.
AB - This review deals with the formations, structures, and properties of transition metal and lanthanide clusters supported by thiacalix[n]arene and its oxidized derivatives, sulfinylcalix[4]arene and sulfonylcalix[4]arene. Each thiacalix[n]arene possesses donor atoms both on the lower rim position (phenol oxygen atoms) and on the cyclic framework itself (-S-, -SO-, or -SO2-), and behaves as a multidentate multi-nucleating ligand to support the formation of a phenoxo-bridged cluster core. For first row transition metals, calix[4]arenes offer a platform for assembling the metal ions via four fac-tridentate coordination sites, and planar tri- and tetra-nuclear clusters are formed. A larger and more flexible thiacalix[6]arene could bind up to five metal ions inside the coordination cavity formed when it adopts the pinched cone conformation. Sulfonylcalix[4]arene shows a strong affinity to lanthanide ions through phenoxo and sulfonyl oxygen donors, and yields a variety of cluster compounds involving di-, tetra-, octa-, and dodeca-nuclear cores, achieved by controlled synthetic conditions.
KW - Cluster
KW - Lanthanide
KW - Sulfinylcalix[4]arene
KW - Sulfonylcalix[4]arene
KW - Thiacalix[n]arene
KW - Transition metal
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U2 - 10.1016/j.ccr.2007.01.001
DO - 10.1016/j.ccr.2007.01.001
M3 - Review article
AN - SCOPUS:34250658073
VL - 251
SP - 1734
EP - 1746
JO - Coordination Chemistry Reviews
JF - Coordination Chemistry Reviews
SN - 0010-8545
IS - 13-14 SPEC. ISS.
ER -