Turn Helical Motifs from Pair to Single Entangled Double Helixes in a Cobalt鈥揤anadate System via Introduction of a V-Shaped Ligand

详细信息    查看全文

• 作者：Shaobin Li ; Wenlong Sun ; Kun Wang ; Huiyuan Ma ; Haijun Pang ; Heng Liu ; Jianxin Zhang
• 刊名：Inorganic Chemistry
• 出版年：2014
• 出版时间：May 5, 2014
• 年：2014
• 卷：53
• 期：9
• 页码：4541-4547
• 全文大小：453K
• 年卷期：v.53,no.9(May 5, 2014)
• ISSN：1520-510X

文摘

Two novel helical compounds based on polyoxovanadates, [Co(H₂O)₂V₂O₆] (1) and [Co(bimb)V₂O₆] (2) (bimb =1,3-bis(1-imidazoly)benzene), have been synthesized under identical hydrothermal conditions, providing two structurally different helical motifs due to introduction of a V-shaped bimb ligand in 2. Compound 1 possesses a pair of entanglement double helixes in a 3D inorganic framework, whereas compound 2 shows a single entangled double helix in a 3D inorganic鈥搊rganic network owing to the influences of steric hindrance of ligands as well as coordination geometries of metal cations. The electrocatalytic and photocatalytic properties of 1 and 2 were also investigated in details.