Ruthenium-Cobalt Bimetallic Supramolecular Cages via a Less Symmetric Tetrapyridyl Metalloligand and the Effect of Spacer Units.
The self-assembly of C(s)-symmetric tetrapyridyl cobalt-metalloligand 2 with three half-sandwich diruthenium acceptors, 3-5, led to the formation of A4D2 (A = acceptor, D = donor) metallacages 6-8, as shown by ESI mass spectrometry, NMR spectroscopy, and X-ray crystallography. The solid-state structures of 6-8 revealed that the length of the acceptor unit greatly influences the molecular packing of these metallacages. Hence, in the solid state, 6-8 can be considered to have waterwheel-shaped, tweezer-shaped, and butterfly-like architectures, respectively.
Department of Chemistry, Chonnam National University , Gwangju 500-757, Republic of Korea.
Ji Yeon
JY
Ryu
Department of Chemistry, Chonnam National University , Gwangju 500-757, Republic of Korea.
Yu Jin
YJ
Park
Department of Chemistry, Chonnam National University , Gwangju 500-757, Republic of Korea.
Hyoung-Ryun
HR
Park
Department of Chemistry, University of Utah , 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States.
Manik Lal
ML
Saha
Department of Chemistry, University of Utah , 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States.
Peter J
PJ
Stang
Department of Chemistry, Chonnam National University , Gwangju 500-757, Republic of Korea.
Junseong
J
Lee