18449-03-1Relevant academic research and scientific papers
Investigating the solid state hosting abilities of homo- and hetero-valent [Co7] metallocalix[6]arenes
Meally, Sean T.,McDonald, Cecelia,Kealy, Patrick,Taylor, Stephanie M.,Brechin, Euan K.,Jones, Leigh F.
, p. 5610 - 5616 (2012)
A family of homo-valent [Co(ii)7(OH)6(L 1)6](NO3)2 (1), [(MeOH) 2?Co(ii)7(OH)6(L1) 6](NO3)2 (2) (where L1H = 2-iminomethyl-6-methoxyphenol) and hetero-valent [(NO3) 2?Co(iii)Co(ii)6(OH)6(L2) 6](NO3)·3MeCN (4) (where L2H = 2-iminophenyl-6-methoxyphenol) complexes possess metallic skeletons describing planar hexagonal discs. Their organic exteriors form double-bowl shaped topologies, and coupled with their 3-D connectivity, this results in the formation of molecular cavities in the solid state. These confined spaces are shown to behave as host units in the solid state for guests including solvent molecules and charge balancing counter anions. Magnetic susceptibility measurements on 2 and 4 reveal weak ferro- and ferrimagnetism, respectively. The utilisation of other Co(ii) salt precursors gives rise to entirely different species including the mononuclear and trinuclear complexes [Co(ii)(L 2)2] (5) and [Co(iii)2Na(i)1(L 3)6](BF4) (6) (where L3H = 2-iminomethyl-4-bromo-6-methoxyphenol).
Reactions of trimethylphosphane-supported cobalt complexes with salicylaldimines - Formation and structures of cobalt compounds containing salicylaldiminato [N:O] ligands
Li, Xiaoyan,Yu, Fengli,Sun, Hongjian,Huang, Liye,Hou, Haoqing
, p. 4362 - 4367 (2006)
The reactions of low-valent cobalt complexes CoMe(PMe3) 4, CoCl(PMe3)3 and Co(PMe3) 4 with salicylaldimines are described to give tetrahedral complexes 7-12, an octahedral complex 13 and a π-coordinated imine complex 15. The crystal structures of 13 and 15 are reported. The formation and likely mechanisms are discussed. Wiley-VCH Verlag GmbH & Co. KGaA, 2006.
