Coordination studies of copper(II), cobalt(II) and iron(II) with isomeric pyridyl–tetrazole ligands
作者:Andrew D. Bond、Adrienne Fleming、Jackie Gaire、Fintan Kelleher、John McGinley、Vickie McKee、Ursula Sheridan
DOI:10.1016/j.poly.2011.11.038
日期:2012.2
CuCl 2 ·2H 2 O, Co(SCN) 2 and Fe(ClO 4 ) 2 ·H 2 O yielded the strongly coloured solids [Cu(II)( L2 )Cl 2 ] 2 ( 1 ), [Cu(II)( L3 )Cl 2 ] 2 ( 2 ), [Co(II)( L2 ) 2 (NCS) 2 ] ( 3 ), [Co(II)( L3 ) 2 (NCS) 2 ] ( 4 ), [Fe(II)( L2 ) 2 (H 2 O) 2 ](ClO 4 ) 2 ( 5 ) and [Fe(II)( L3 ) 2 (H 2 O) 2 ](ClO 4 ) 2 ( 6 ), containing high-spin metal centres for the Co(II) and Fe(II) compounds. X-ray crystal structures were
摘要2-(2H-四唑-5-基)吡啶(L1)与1,6-二溴己烷的反应导致异构体2-(6″-溴己基)-(1-四唑-5-基)吡啶的形成(L2)和2-(6″-溴己基)-(2-四唑-5-基)吡啶(L3)。L2和L3与CuCl 2·2H 2 O,Co(SCN)2和Fe(ClO 4)2·H 2 O的配位反应产生了强烈着色的固体[Cu(II)(L2)Cl 2] 2(1) ,[Cu(II)(L3)Cl 2] 2(2),[Co(II)(L2)2(NCS)2](3),[Co(II)(L3)2(NCS)2]( 4),[Fe(II)(L2)2(H 2 O)2](ClO 4)2(5)和[Fe(II)(L3)2(H 2 O)2](ClO 4)2( 6),包含Co(II)和Fe(II)化合物的高自旋金属中心。获得了配合物1-5的X射线晶体结构。在每个络合物中,配体L2和L3通过吡啶基N原子和四唑环的1-N位点与金属中心配