Synthesis,structure and physical properties of the one-dimensional chain complex of tetrathiafulvale

• 出 处: Science in China(Series B:Chemistry)
• 发表日期: 2009年10期
• 关键词: carboxylate ferromagnetic contacts intermolecular chains conducting magnetizatio

A new Co(Ⅱ) coordination polymer bearing TTF carboxylate group, [{Co2(trioTTF)2(H2O)6}·5H2O]n (1) (trioTTF=2-(5,6,8,9,11,12,14,15-octahydro-[1,3]dithiolo[4,5-h][1,4,13,7,10]trioxadithiacyclopentadecin-2-ylidene)-1,3-dithiole-4,5-dicarboxylate), has been prepared and characterized. In the structure of 1, shorter intermolecular S····S contacts (3.565 △) are found between the trioTTF groups from neighboring chains. The electric conductivity of 1 is poor due to the bulky crown-ether group, but it exhibits ferromagnetic interaction at low temperature.

A new Co (Ⅱ) coordination polymer bearing TTF carboxylate group, [{Co 2 (trioTTF) 2 (H 2 O) 6} · 5H 2 O] n (1) (trioTTF = 2- 14,15-octahydro- [1,3] dithiolo [4,5-h] [1,4,13,7,10] trioxadithiacyclopentadecin-2-ylidene- 1,3-dithiole-4,5-dicarboxylate The structure of 1, shorter intermolecular S · S contacts (3.565 △) are found between the trioTTF groups from Neighbors. The electric conductivity of 1 is poor due to the bulky crown-ether group but it exhibits ferromagnetic interaction at low temperature.