Self assembled tetranuclear Cu4(ii), Ni4(ii) [2 × 2] square grids and a dicopper(ii) complex of heterocycle based polytopic ligands - Magnetic studies
作者:Tarak Nath Mandal、Somnath Roy、Saugata Konar、Atanu Jana、Sangita Ray、Kinsuk Das、Rajat Saha、Mohamed Salah El Fallah、Ray J. Butcher、Sudipta Chatterjee、Susanta Kumar Kar
DOI:10.1039/c1dt10813a
日期:——
1229) self-assemble to form homoleptic [2 × 2] tetranuclear M4 (M = Cu(II) and Ni(II)) square grids structures [Cu4(PyPzOAP)4](NO3)4 (1), [Cu4(PzOAP)4](ClO4)4 (2) and [Ni4(PyPzOAP)4](NO3)4·8H2O·2CH3CN (3). While the ligand 2-PzCAP forms a dicopper(II) complex [Cu2(2-PzCAP)(OH)(NO3)(H2O)](NO3)·2H2O (4). The complex 1 is a perfect square grid (a = 4.201 Å), whereas, 2 and 3 are almost square grids. All
对位配体PyPzOAP(N -[(Z)-氨基(吡啶-2-基)亚甲基] -5-甲基-1-(吡啶-2-基)-1 H-吡唑-3-碳酰肼酸)和多配体2-PzCAP(Ñ ' 3,Ñ ' 5 -双[(1- ë)-1-(吡啶-2-基)亚乙基] -1- ħ吡唑-3,5- dicarbohydrazide)是通过亚氨基吡啶甲酸亚氨基甲酸甲酯与5-甲基-1-(2-吡啶基)吡唑-3-碳酰肼的缩合反应原位合成的。2-乙酰基吡啶 和 吡唑-3,5-二甲酰肼分别。配体PyPzOAP和PzOAP(先前报道,Dalton Trans。,2007,1229 )自组装形成均相[2×2]四核M 4(M = Cu(II)和Ni(II))方形网格结构[Cu 4(PyPzOAP)4 ](NO 3)4(1),[Cu 4(PzOAP)4 ](ClO 4)4(2)和[Ni 4(PyPzOAP)4 ](NO 3)4 ·8H 2 O·2CH 3