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μ-Phenoxo-μ-pseudohalide and μ-pseudohalide dinuclear, tetranuclear and one-dimensional complexes: magneto-structural correlation and interesting type of solid state isomerism
| Content Provider | Semantic Scholar |
|---|---|
| Author | Sasmal, Sujit Mohanta, Sasankasekhar |
| Copyright Year | 2012 |
| Abstract | AbstractFive Schiff base ligands have been utilized to explore metallo-pseudohalide (azide or cyanate) systems. These ligands are the 1:1 condensation products of 3-methoxysalicylaldehyde with ethanolamine (H2L1)/1-(2-aminoethyl)-piperidine (HL2)/ 4-(2-aminoethyl)-morpholine (HL3) or salicylaldehyde with 1-(2-aminoethyl)-piperidine (HL4)/4-(2-aminoethyl)-morpholine (HL5). The derived complexes are as follows: Four heterobridged μ-phenoxo-μ1,1-azide/cyanate dinickel(II) compounds of composition [Ni$^{\rm II}_{2}$(HL$^{1})_{3}(\mu_{1,1}$-N3)]·3H2O (1), [Ni$^{\rm II}_{2}$(L$^{2})_{2}(\mu _{1,1}$-N3)(N3)(H2O)]·CH3CH2OH (2), [Ni$^{\rm II}_{2}$(L$^{3})_{2}$ (μ1,1-N3)(CH3CN)(H2O)](ClO4)·H2O·CH3CN (3) and [Ni$^{\rm II}_{2}$(HL$^{1})_{3}(\mu _{1,1}$-NCO)]·2H2O (4); Two μ1,3-azide bridged tetranickel(II) compounds [{NiII(L$^{4})(\mu _{1,3}$-N3)(H2O)}4] (5) and [{NiII(L$^{5})(\mu _{1,3}$-N3)(H2O)}4] (6); Two μ1,3-azide/cyanate one-dimensional compounds [CuIIL$^{5}(\mu _{1,3}$-NCO)]n·2nH2O (7) and [CuIIL$^{5}(\mu _{1,3}$-N3)]n· 2nH2O (8). Except compound 5 which shows overall antiferromagnetic coupling, other compounds exhibit overall ferromagnetic interaction. Syntheses, crystal structures, magnetic properties, density functional theoretical (DFT) calculations and experimental/theoretical magneto-structural correlations have been carried out which have revealed some interesting observations on composition/topology, magneto-structural correlations and solid state isomerism. The results have been already published. The present report deals with a review of the salient and interesting features of these works. Graphical AbstractThis article reviews some recent studies on metallo-pseudohalide compounds, only pseudohalide bridged or heterobridged µ-phenoxo-µ1,1-azide/cyanate complexes, and focuses on the following features: (i) unprecedented type of structures; (ii) unique bridge distance dependency of exchange integral; (iii) experimental and density functional theoretical magneto-structural correlations; (iv) interesting magnetic, crystallographic and supramolecular isomerisms. |
| Starting Page | 1353 |
| Ending Page | 1364 |
| Page Count | 12 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/s12039-012-0334-1 |
| Alternate Webpage(s) | https://www.ias.ac.in/article/fulltext/jcsc/124/06/1353-1364 |
| Alternate Webpage(s) | https://doi.org/10.1007/s12039-012-0334-1 |
| Volume Number | 124 |
| Journal | Journal of Chemical Sciences |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
