An unusual 3D pillared-layer cobalt(II) coordination polymer containing helical motifs and novel topology constructed from mixed ligands

作者：Yang Guo Ping; Liu Bin; Hou Lei; Liu Ping; Liu Bo; Wang Yao Yu^*; Shi Qi Zhen

来源：Inorganic Chemistry Communications, 2011, 14(6): 805-808.

DOI：10.1016/j.inoche.2011.01.020

• Coordination polymer
• Cobalt(II)
• Topology
• Helical motif
• Magnetic property

An unusual 3D pillared-layer Co-II coordination polymer, namely [Co(pda)(bpe)](n), (1) [H(2)pda= 1,3-phenylenediacetic acid, bpe= 1,2-bi(4-pyridyl)ethylene], has been successfully prepared under hydrothermal condition. X-ray crystal analysis indicates that the structure of 1 is constructed from 2D undulated [Co(pda)](n) layers, which consists of alternating left- and right-handed helical motifs, and then further pillared by bpe ligands into a 3D structural framework. Topologically, complex 1 shows an intriguing binodal (3,5)connected fsc network with the Schlafli symbol of (4.6(2))(4.6(6).8(3)) which is completely different from the reported (4,6)-connected fsc nets; and if the dimeric [Co-2] units (SBUs) are considered as the single 6-connected nodes, 1 displays a familiar uninodal pcu net with the Schlafli symbol of (4(12).6(3)). In addition, magnetic measurement revealed that 1 shows the antiferromagnetic coupling between Co-II ions.

• 出版日期2011-6
• 单位西北大学