Abstract
Treatment of tetracopper(I)-phosphonitocavitand [1·Cu4(μ-Cl)4(μ4-Cl)] (2) (1 = tetraphosphonitocavitand [rccc-2,8,14,20-tetrakis-(iso-butyl)-phosphonitocavitand (C44H48O8P4Ph4)]) with PhSeSiMe3 in THF at low temperature afforded a novel polyanionic cluster [pyH]6[(CuCl)9(μ3-SePh)5(μ4-SePh)] (4) as a major product along with a new tetracopper(I)-phosphonitocavitand (3) with a centered μ3-Cl. Molecular structure of anionic cluster in 4 consists of six PhSe− bridging ligands containing five μ3-SePh and one exceptional μ4-SePh bridging nine copper atoms, of which eight copper atoms have trigonal coordination geometry and the other has distorted tetrahedral geometry.
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Acknowledgments
Acknowledgment is made to the research grants from the Natural Science Foundations of China (90301005) and Anhui Province (050460303) to QFZ and the USC Nanocenter and US NSF Grant No. CHE-0354892 to RDA. Dr. Q. F. Zhang thanks the Grant for Excellent Youth Investigator of Anhui Province (06046100) and the Alexander von Humboldt Foundation for the assistance.
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Dedicated to Professor Han-Qin Liu on the occasion of his 70th birthday.
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Zhang, QF., Liu, YJ., Adams, R.D. et al. Reaction of Tetracopper(I)-Phosphonitocavitand with PhSeSiMe3: Synthesis and Structure of a Polyanionic Cluster [pyH]6[(CuCl)9(μ3-SePh)5(μ4-SePh)]. J Clust Sci 17, 445–455 (2006). https://doi.org/10.1007/s10876-006-0068-7
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DOI: https://doi.org/10.1007/s10876-006-0068-7